Android demo for speaker diarization (#1423)

2024-10-13 14:02:57 +08:00
parent 94b26ff07c
commit 5a22f74b2b
64 changed files with 1905 additions and 26 deletions
--- a/.github/workflows/apk-speaker-diarization.yaml
+++ b/.github/workflows/apk-speaker-diarization.yaml
@@ -0,0 +1,175 @@
+name: apk-speaker-diarization
+
+on:
+  push:
+    branches:
+      - apk
+      - android-demo-speaker-diarization-2
+
+  workflow_dispatch:
+
+concurrency:
+  group: apk-speaker-diarization-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: write
+
+jobs:
+  apk_speaker_identification:
+    if: github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa'
+    runs-on: ${{ matrix.os }}
+    name: apk for speaker diarization ${{ matrix.index }}/${{ matrix.total }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        total: ["1"]
+        index: ["0"]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      # https://github.com/actions/setup-java
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin' # See 'Supported distributions' for available options
+          java-version: '21'
+
+      - name: ccache
+        uses: hendrikmuhs/ccache-action@v1.2
+        with:
+          key: ${{ matrix.os }}-android
+
+      - name: Display NDK HOME
+        shell: bash
+        run: |
+          echo "ANDROID_NDK_LATEST_HOME: ${ANDROID_NDK_LATEST_HOME}"
+          ls -lh ${ANDROID_NDK_LATEST_HOME}
+
+      - name: Install Python dependencies
+        shell: bash
+        run: |
+          python3 -m pip install --upgrade pip jinja2
+
+      - name: Setup build tool version variable
+        shell: bash
+        run: |
+          echo "---"
+          ls -lh /usr/local/lib/android/
+          echo "---"
+
+          ls -lh /usr/local/lib/android/sdk
+          echo "---"
+
+          ls -lh /usr/local/lib/android/sdk/build-tools
+          echo "---"
+
+          BUILD_TOOL_VERSION=$(ls /usr/local/lib/android/sdk/build-tools/ | tail -n 1)
+          echo "BUILD_TOOL_VERSION=$BUILD_TOOL_VERSION" >> $GITHUB_ENV
+          echo "Last build tool version is: $BUILD_TOOL_VERSION"
+
+      - name: Generate build script
+        shell: bash
+        run: |
+          cd scripts/apk
+
+          chmod +x build-apk-speaker-diarization.sh
+          mv -v ./build-apk-speaker-diarization.sh ../..
+
+      - name: build APK
+        shell: bash
+        run: |
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+          cmake --version
+
+          export ANDROID_NDK=$ANDROID_NDK_LATEST_HOME
+          ./build-apk-speaker-diarization.sh
+
+      - name: Display APK
+        shell: bash
+        run: |
+          ls -lh ./apks/
+          du -h -d1 .
+
+      # https://github.com/marketplace/actions/sign-android-release
+      - uses: r0adkll/sign-android-release@v1
+        name: Sign app APK
+        with:
+          releaseDirectory: ./apks
+          signingKeyBase64: ${{ secrets.ANDROID_SIGNING_KEY }}
+          alias: ${{ secrets.ANDROID_SIGNING_KEY_ALIAS }}
+          keyStorePassword: ${{ secrets.ANDROID_SIGNING_KEY_STORE_PASSWORD }}
+        env:
+          BUILD_TOOLS_VERSION: ${{ env.BUILD_TOOL_VERSION }}
+
+      - name: Display APK after signing
+        shell: bash
+        run: |
+          ls -lh ./apks/
+          du -h -d1 .
+
+      - name: Rename APK after signing
+        shell: bash
+        run: |
+          cd apks
+          rm -fv signingKey.jks
+          rm -fv *.apk.idsig
+          rm -fv *-aligned.apk
+
+          all_apks=$(ls -1 *-signed.apk)
+          echo "----"
+          echo $all_apks
+          echo "----"
+          for apk in ${all_apks[@]}; do
+            n=$(echo $apk | sed -e s/-signed//)
+            mv -v $apk $n
+          done
+
+          cd ..
+
+          ls -lh ./apks/
+          du -h -d1 .
+
+      - name: Display APK after rename
+        shell: bash
+        run: |
+          ls -lh ./apks/
+          du -h -d1 .
+
+      - name: Publish to huggingface
+        env:
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 20
+          timeout_seconds: 200
+          shell: bash
+          command: |
+            git config --global user.email "csukuangfj@gmail.com"
+            git config --global user.name "Fangjun Kuang"
+
+            rm -rf huggingface
+            export GIT_LFS_SKIP_SMUDGE=1
+            export GIT_CLONE_PROTECTION_ACTIVE=false
+
+            SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+            echo "SHERPA_ONNX_VERSION $SHERPA_ONNX_VERSION"
+
+            git clone https://huggingface.co/csukuangfj/sherpa-onnx-apk huggingface
+            cd huggingface
+            git fetch
+            git pull
+            git merge -m "merge remote" --ff origin main
+
+            d=speaker-diarization/$SHERPA_ONNX_VERSION
+            mkdir -p $d/
+            cp -v ../apks/*.apk $d/
+            git status
+            git lfs track "*.apk"
+            git add .
+            git commit -m "add more apks"
+            git push https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/sherpa-onnx-apk main
--- a/.github/workflows/apk-speaker-identification.yaml
+++ b/.github/workflows/apk-speaker-identification.yaml
@@ -53,6 +53,23 @@ jobs:
        run: |
          python3 -m pip install --upgrade pip jinja2

+      - name: Setup build tool version variable
+        shell: bash
+        run: |
+          echo "---"
+          ls -lh /usr/local/lib/android/
+          echo "---"
+
+          ls -lh /usr/local/lib/android/sdk
+          echo "---"
+
+          ls -lh /usr/local/lib/android/sdk/build-tools
+          echo "---"
+
+          BUILD_TOOL_VERSION=$(ls /usr/local/lib/android/sdk/build-tools/ | tail -n 1)
+          echo "BUILD_TOOL_VERSION=$BUILD_TOOL_VERSION" >> $GITHUB_ENV
+          echo "Last build tool version is: $BUILD_TOOL_VERSION"
+
      - name: Generate build script
        shell: bash
        run: |
@@ -82,6 +99,51 @@ jobs:
          ls -lh ./apks/
          du -h -d1 .

+      # https://github.com/marketplace/actions/sign-android-release
+      - uses: r0adkll/sign-android-release@v1
+        name: Sign app APK
+        with:
+          releaseDirectory: ./apks
+          signingKeyBase64: ${{ secrets.ANDROID_SIGNING_KEY }}
+          alias: ${{ secrets.ANDROID_SIGNING_KEY_ALIAS }}
+          keyStorePassword: ${{ secrets.ANDROID_SIGNING_KEY_STORE_PASSWORD }}
+        env:
+          BUILD_TOOLS_VERSION: ${{ env.BUILD_TOOL_VERSION }}
+
+      - name: Display APK after signing
+        shell: bash
+        run: |
+          ls -lh ./apks/
+          du -h -d1 .
+
+      - name: Rename APK after signing
+        shell: bash
+        run: |
+          cd apks
+          rm -fv signingKey.jks
+          rm -fv *.apk.idsig
+          rm -fv *-aligned.apk
+
+          all_apks=$(ls -1 *-signed.apk)
+          echo "----"
+          echo $all_apks
+          echo "----"
+          for apk in ${all_apks[@]}; do
+            n=$(echo $apk | sed -e s/-signed//)
+            mv -v $apk $n
+          done
+
+          cd ..
+
+          ls -lh ./apks/
+          du -h -d1 .
+
+      - name: Display APK after rename
+        shell: bash
+        run: |
+          ls -lh ./apks/
+          du -h -d1 .
+
      - name: Publish to huggingface
        env:
          HF_TOKEN: ${{ secrets.HF_TOKEN }}
--- a/.github/workflows/apk-vad.yaml
+++ b/.github/workflows/apk-vad.yaml
@@ -166,7 +166,7 @@ jobs:
            git pull
            git merge -m "merge remote" --ff origin main

-            d=vad/SHERPA_ONNX_VERSION
+            d=vad/$SHERPA_ONNX_VERSION
            mkdir -p $d
            cp -v ../apks/*.apk $d/
            git status
--- a/README.md
+++ b/README.md
@@ -84,8 +84,9 @@ with the following APIs

 ### Links for Huggingface Spaces

-You can visit the following Huggingface spaces to try `sherpa-onnx` without
-installing anything. All you need is a browser.
+<details>
+<summary>You can visit the following Huggingface spaces to try sherpa-onnx without
+installing anything. All you need is a browser.</summary>

 | Description                                           | URL                                |
 |-------------------------------------------------------|------------------------------------|
@@ -118,23 +119,34 @@ We also have spaces built using WebAssembly. They are listed below:
 |Speech synthesis (German)                                                                   |[Click me][wasm-hf-tts-piper-de]| [地址][wasm-ms-tts-piper-de]|
 |Speaker diarization                                                                         |[Click me][wasm-hf-speaker-diarization]|[地址][wasm-ms-speaker-diarization]|

+</details>
+
 ### Links for pre-built Android APKs

-| Description                            | URL                          | 中国用户                    |
-|----------------------------------------|------------------------------|-----------------------------|
-| Streaming speech recognition           | [Address][apk-streaming-asr] | [点此][apk-streaming-asr-cn]|
-| Text-to-speech                         | [Address][apk-tts]           | [点此][apk-tts-cn]          |
-| Voice activity detection (VAD)         | [Address][apk-vad]           | [点此][apk-vad-cn]          |
-| VAD + non-streaming speech recognition | [Address][apk-vad-asr]       | [点此][apk-vad-asr-cn]      |
-| Two-pass speech recognition            | [Address][apk-2pass]         | [点此][apk-2pass-cn]        |
-| Audio tagging                          | [Address][apk-at]            | [点此][apk-at-cn]           |
-| Audio tagging (WearOS)                 | [Address][apk-at-wearos]     | [点此][apk-at-wearos-cn]    |
-| Speaker identification                 | [Address][apk-sid]           | [点此][apk-sid-cn]          |
-| Spoken language identification         | [Address][apk-slid]          | [点此][apk-slid-cn]         |
-| Keyword spotting                       | [Address][apk-kws]           | [点此][apk-kws-cn]          |
+<details>
+
+<summary>You can find pre-built Android APKs for this repository in the following table</summary>
+
+| Description                            | URL                                | 中国用户                          |
+|----------------------------------------|------------------------------------|-----------------------------------|
+| Speaker diarization                    | [Address][apk-speaker-diarization] | [点此][apk-speaker-diarization-cn]|
+| Streaming speech recognition           | [Address][apk-streaming-asr]       | [点此][apk-streaming-asr-cn]      |
+| Text-to-speech                         | [Address][apk-tts]                 | [点此][apk-tts-cn]                |
+| Voice activity detection (VAD)         | [Address][apk-vad]                 | [点此][apk-vad-cn]                |
+| VAD + non-streaming speech recognition | [Address][apk-vad-asr]             | [点此][apk-vad-asr-cn]            |
+| Two-pass speech recognition            | [Address][apk-2pass]               | [点此][apk-2pass-cn]              |
+| Audio tagging                          | [Address][apk-at]                  | [点此][apk-at-cn]                 |
+| Audio tagging (WearOS)                 | [Address][apk-at-wearos]           | [点此][apk-at-wearos-cn]          |
+| Speaker identification                 | [Address][apk-sid]                 | [点此][apk-sid-cn]                |
+| Spoken language identification         | [Address][apk-slid]                | [点此][apk-slid-cn]               |
+| Keyword spotting                       | [Address][apk-kws]                 | [点此][apk-kws-cn]                |
+
+</details>

 ### Links for pre-built Flutter APPs

+<details>
+
 #### Real-time speech recognition

 | Description                    | URL                                 | 中国用户                            |
@@ -153,17 +165,24 @@ We also have spaces built using WebAssembly. They are listed below:

 > Note: You need to build from source for iOS.

+</details>
+
 ### Links for pre-built Lazarus APPs

+<details>
+
 #### Generating subtitles

 | Description                    | URL                        | 中国用户                   |
 |--------------------------------|----------------------------|----------------------------|
 | Generate subtitles (生成字幕)  | [Address][lazarus-subtitle]| [点此][lazarus-subtitle-cn]|

+</details>

 ### Links for pre-trained models

+<details>
+
 | Description                                 | URL                                                                                   |
 |---------------------------------------------|---------------------------------------------------------------------------------------|
 | Speech recognition (speech to text, ASR)    | [Address][asr-models]                                                                 |
@@ -176,6 +195,8 @@ We also have spaces built using WebAssembly. They are listed below:
 | Punctuation                                 | [Address][punct-models]                                                               |
 | Speaker segmentation                        | [Address][speaker-segmentation-models]                                                |

+</details>
+
 ### Useful links

 - Documentation: https://k2-fsa.github.io/sherpa/onnx/
@@ -265,6 +286,8 @@ Video demo in Chinese: [爆了！炫神教你开打字挂！真正影响胜率
 [wasm-ms-tts-piper-de]: https://modelscope.cn/studios/k2-fsa/web-assembly-tts-sherpa-onnx-de
 [wasm-hf-speaker-diarization]: https://huggingface.co/spaces/k2-fsa/web-assembly-speaker-diarization-sherpa-onnx
 [wasm-ms-speaker-diarization]: https://www.modelscope.cn/studios/csukuangfj/web-assembly-speaker-diarization-sherpa-onnx
+[apk-speaker-diarization]: https://k2-fsa.github.io/sherpa/onnx/speaker-diarization/apk.html
+[apk-speaker-diarization-cn]: https://k2-fsa.github.io/sherpa/onnx/speaker-diarization/apk-cn.html
 [apk-streaming-asr]: https://k2-fsa.github.io/sherpa/onnx/android/apk.html
 [apk-streaming-asr-cn]: https://k2-fsa.github.io/sherpa/onnx/android/apk-cn.html
 [apk-tts]: https://k2-fsa.github.io/sherpa/onnx/tts/apk-engine.html
--- a/android/README.md
+++ b/android/README.md
@@ -4,6 +4,8 @@ Please refer to
 https://k2-fsa.github.io/sherpa/onnx/android/index.html
 for usage.

+- [SherpaOnnxSpeakerDiarization](./SherpaOnnxSpeakerDiarization) It is for speaker diarization.
+
 - [SherpaOnnx](./SherpaOnnx) It uses a streaming ASR model.

 - [SherpaOnnx2Pass](./SherpaOnnx2Pass) It uses a streaming ASR model
--- a/android/SherpaOnnxSpeakerDiarization/.gitignore
+++ b/android/SherpaOnnxSpeakerDiarization/.gitignore
@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
--- a/android/SherpaOnnxSpeakerDiarization/app/.gitignore
+++ b/android/SherpaOnnxSpeakerDiarization/app/.gitignore
@@ -0,0 +1 @@
+/build
--- a/android/SherpaOnnxSpeakerDiarization/app/build.gradle.kts
+++ b/android/SherpaOnnxSpeakerDiarization/app/build.gradle.kts
@@ -0,0 +1,71 @@
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.jetbrains.kotlin.android)
+}
+
+android {
+    namespace = "com.k2fsa.sherpa.onnx.speaker.diarization"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.k2fsa.sherpa.onnx.speaker.diarization"
+        minSdk = 21
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables {
+            useSupportLibrary = true
+        }
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+    buildFeatures {
+        compose = true
+    }
+    composeOptions {
+        kotlinCompilerExtensionVersion = "1.5.1"
+    }
+    packaging {
+        resources {
+            excludes += "/META-INF/{AL2.0,LGPL2.1}"
+        }
+    }
+}
+
+dependencies {
+
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.lifecycle.runtime.ktx)
+    implementation(libs.androidx.activity.compose)
+    implementation(platform(libs.androidx.compose.bom))
+    implementation(libs.androidx.ui)
+    implementation(libs.androidx.ui.graphics)
+    implementation(libs.androidx.ui.tooling.preview)
+    implementation(libs.androidx.material3)
+    implementation(libs.androidx.navigation.compose)
+    implementation(libs.androidx.documentfile)
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.androidx.junit)
+    androidTestImplementation(libs.androidx.espresso.core)
+    androidTestImplementation(platform(libs.androidx.compose.bom))
+    androidTestImplementation(libs.androidx.ui.test.junit4)
+    debugImplementation(libs.androidx.ui.tooling)
+    debugImplementation(libs.androidx.ui.test.manifest)
+}
--- a/android/SherpaOnnxSpeakerDiarization/app/proguard-rules.pro
+++ b/android/SherpaOnnxSpeakerDiarization/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/android/SherpaOnnxSpeakerDiarization/app/src/androidTest/java/com/k2fsa/sherpa/onnx/speaker/diarization/ExampleInstrumentedTest.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/androidTest/java/com/k2fsa/sherpa/onnx/speaker/diarization/ExampleInstrumentedTest.kt
@@ -0,0 +1,24 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.k2fsa.sherpa.onnx.speaker.diarization", appContext.packageName)
+    }
+}
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/AndroidManifest.xml
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/AndroidManifest.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission
+        android:name="android.permission.READ_EXTERNAL_STORAGE"
+        android:maxSdkVersion="32" />
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.SherpaOnnxSpeakerDiarization"
+        tools:targetApi="31">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:theme="@style/Theme.SherpaOnnxSpeakerDiarization">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/assets/.gitkeep
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/assets/.gitkeep
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/BarItem.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/BarItem.kt
@@ -0,0 +1,13 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization
+
+import androidx.compose.ui.graphics.vector.ImageVector
+
+data class BarItem(
+    val title: String,
+
+    // see https://www.composables.com/icons
+    // and
+    // https://developer.android.com/reference/kotlin/androidx/compose/material/icons/filled/package-summary
+    val image: ImageVector,
+    val route: String,
+)
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/MainActivity.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/MainActivity.kt
@@ -0,0 +1,132 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.CenterAlignedTopAppBar
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.NavigationBar
+import androidx.compose.material3.NavigationBarItem
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBarDefaults
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.navigation.NavGraph.Companion.findStartDestination
+import androidx.navigation.NavHostController
+import androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.currentBackStackEntryAsState
+import androidx.navigation.compose.rememberNavController
+import com.k2fsa.sherpa.onnx.speaker.diarization.screens.HelpScreen
+import com.k2fsa.sherpa.onnx.speaker.diarization.screens.HomeScreen
+import com.k2fsa.sherpa.onnx.speaker.diarization.ui.theme.SherpaOnnxSpeakerDiarizationTheme
+
+const val TAG = "sherpa-onnx-sd"
+
+class MainActivity : ComponentActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContent {
+            SherpaOnnxSpeakerDiarizationTheme {
+                // A surface container using the 'background' color from the theme
+                Surface(
+                    modifier = Modifier.fillMaxSize(),
+                    color = MaterialTheme.colorScheme.background
+                ) {
+                    MainScreen()
+                }
+            }
+        }
+        SpeakerDiarizationObject.initSpeakerDiarization(this.assets)
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun MainScreen(modifier: Modifier = Modifier) {
+    val navController = rememberNavController()
+    Scaffold(
+        topBar = {
+            CenterAlignedTopAppBar(
+                colors = TopAppBarDefaults.topAppBarColors(
+                    containerColor = MaterialTheme.colorScheme.primaryContainer,
+                    titleContentColor = MaterialTheme.colorScheme.primary,
+                ),
+                title = {
+                    Text(
+                        "Next-gen Kaldi: Speaker Diarization",
+                        fontWeight = FontWeight.Bold,
+                    )
+                },
+            )
+        },
+        content = { padding ->
+            Column(Modifier.padding(padding)) {
+                NavigationHost(navController = navController)
+
+            }
+        },
+        bottomBar = {
+            BottomNavigationBar(navController = navController)
+        }
+    )
+}
+
+@Composable
+fun NavigationHost(navController: NavHostController) {
+    NavHost(navController = navController, startDestination = NavRoutes.Home.route) {
+        composable(NavRoutes.Home.route) {
+            HomeScreen()
+        }
+
+        composable(NavRoutes.Help.route) {
+            HelpScreen()
+        }
+    }
+}
+
+@Composable
+fun BottomNavigationBar(navController: NavHostController) {
+    NavigationBar {
+        val backStackEntry by navController.currentBackStackEntryAsState()
+        val currentRoute = backStackEntry?.destination?.route
+
+        NavBarItems.BarItems.forEach { navItem ->
+            NavigationBarItem(selected = currentRoute == navItem.route,
+                onClick = {
+                    navController.navigate(navItem.route) {
+                        popUpTo(navController.graph.findStartDestination().id) {
+                            saveState = true
+                        }
+                        launchSingleTop = true
+                        restoreState = true
+                    }
+                },
+                icon = {
+                    Icon(imageVector = navItem.image, contentDescription = navItem.title)
+                }, label = {
+                    Text(text = navItem.title)
+                })
+        }
+    }
+}
+
+@Preview(showBackground = true)
+@Composable
+fun MainScreenPreview() {
+    SherpaOnnxSpeakerDiarizationTheme {
+        MainScreen()
+    }
+}
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/NavBarItems.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/NavBarItems.kt
@@ -0,0 +1,20 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Home
+import androidx.compose.material.icons.filled.Info
+
+object NavBarItems {
+    val BarItems = listOf(
+        BarItem(
+            title = "Home",
+            image = Icons.Filled.Home,
+            route = "home",
+        ),
+        BarItem(
+            title = "Help",
+            image = Icons.Filled.Info,
+            route = "help",
+        ),
+    )
+}
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/NavRoutes.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/NavRoutes.kt
@@ -0,0 +1,6 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization
+
+sealed class NavRoutes(val route: String) {
+    object Home : NavRoutes("home")
+    object Help : NavRoutes("help")
+}
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/OfflineSpeakerDiarization.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/OfflineSpeakerDiarization.kt
@@ -0,0 +1 @@
+../../../../../../../../../../../../sherpa-onnx/kotlin-api/OfflineSpeakerDiarization.kt
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/ReadWaveFile.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/ReadWaveFile.kt
@@ -0,0 +1,137 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization.screens
+
+import android.content.Context
+import android.media.AudioFormat
+import android.media.MediaCodec
+import android.media.MediaExtractor
+import android.media.MediaFormat
+import android.net.Uri
+
+data class WaveData(
+    val sampleRate: Int? = null,
+    val samples: FloatArray? = null,
+    val msg: String? = null
+)
+
+// It supports only 16-bit encoded wave files
+//
+// References
+// - https://gist.github.com/a-m-s/1991ab18fbcb0fcc2cf9
+// - https://github.com/taehwandev/MediaCodecExample/blob/master/app/src/main/java/tech/thdev/mediacodecexample/audio/AACAudioDecoderThread.kt
+fun readUri(context: Context, uri: Uri): WaveData {
+    val extractor = MediaExtractor()
+    extractor.setDataSource(context, uri, null)
+
+    val samplesList: MutableList<FloatArray> = ArrayList()
+
+    for (i in 0 until extractor.trackCount) {
+        val format = extractor.getTrackFormat(i)
+        val mime = format.getString(MediaFormat.KEY_MIME)
+        if (mime?.startsWith("audio/") == true) {
+            extractor.selectTrack(i)
+
+            var encoding: Int = -1
+            try {
+                encoding = format.getInteger(MediaFormat.KEY_PCM_ENCODING)
+            } catch (_: Exception) {
+            }
+
+            if (encoding != AudioFormat.ENCODING_PCM_16BIT) {
+                return WaveData(msg = "We support only 16-bit encoded wave files")
+            }
+
+            val sampleRate = format.getInteger(MediaFormat.KEY_SAMPLE_RATE)
+            val decoder = MediaCodec.createDecoderByType(mime)
+            decoder.configure(format, null, null, 0)
+            decoder.start()
+
+            val inputBuffers = decoder.inputBuffers
+            var outputBuffers = decoder.outputBuffers
+
+            val info = MediaCodec.BufferInfo()
+            var eof = false
+
+            var outputBufferIndex = -1
+
+            while (true) {
+                if (!eof) {
+                    val inputBufferIndex = decoder.dequeueInputBuffer(10000)
+                    if (inputBufferIndex > 0) {
+                        val size = extractor.readSampleData(inputBuffers[inputBufferIndex], 0)
+                        if (size < 0) {
+                            decoder.queueInputBuffer(
+                                inputBufferIndex,
+                                0,
+                                0,
+                                0,
+                                MediaCodec.BUFFER_FLAG_END_OF_STREAM
+                            )
+                            eof = true
+                        } else {
+                            decoder.queueInputBuffer(
+                                inputBufferIndex,
+                                0,
+                                size,
+                                extractor.sampleTime,
+                                0
+                            )
+                            extractor.advance()
+                        }
+                    }
+                } // if (!eof)
+
+                if (outputBufferIndex >= 0) {
+                    outputBuffers[outputBufferIndex].position(0)
+                }
+
+                outputBufferIndex = decoder.dequeueOutputBuffer(info, 10000)
+                if (outputBufferIndex >= 0) {
+                    if (info.flags != 0) {
+                        decoder.stop()
+                        decoder.release()
+
+                        var k = 0
+                        for (s in samplesList) {
+                            k += s.size
+                        }
+                        if (k == 0) {
+                            return WaveData(msg = "Failed to read selected file")
+                        }
+
+                        val ans = FloatArray(k)
+                        k = 0
+                        for (s in samplesList) {
+                            s.copyInto(ans, k)
+                            k += s.size
+                        }
+
+                        return WaveData(sampleRate = sampleRate, samples = ans)
+                    }
+
+                    val buffer = outputBuffers[outputBufferIndex]
+                    val chunk = ByteArray(info.size)
+                    buffer[chunk]
+                    buffer.clear()
+
+                    val numSamples = info.size / 2
+
+                    val samples = FloatArray(numSamples)
+                    for (k in 0 until numSamples) {
+                        // assume little endian
+                        val s = chunk[2 * k] + (chunk[2 * k + 1] * 256.0f)
+
+                        samples[k] = s / 32768.0f
+                    }
+                    samplesList.add(samples)
+
+                    decoder.releaseOutputBuffer(outputBufferIndex, false)
+                } else if (outputBufferIndex == MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED) {
+                    outputBuffers = decoder.outputBuffers
+                }
+            }
+        }
+    }
+
+    extractor.release()
+    return WaveData(msg = "not an audio file")
+}
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/SpeakerDiarizationObject.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/SpeakerDiarizationObject.kt
@@ -0,0 +1,66 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization
+
+import android.content.res.AssetManager
+import android.util.Log
+import com.k2fsa.sherpa.onnx.FastClusteringConfig
+import com.k2fsa.sherpa.onnx.OfflineSpeakerDiarization
+import com.k2fsa.sherpa.onnx.OfflineSpeakerDiarizationConfig
+import com.k2fsa.sherpa.onnx.OfflineSpeakerSegmentationModelConfig
+import com.k2fsa.sherpa.onnx.OfflineSpeakerSegmentationPyannoteModelConfig
+import com.k2fsa.sherpa.onnx.SpeakerEmbeddingExtractorConfig
+
+// Please download
+// https://github.com/k2-fsa/sherpa-onnx/releases/download/speaker-segmentation-models/sherpa-onnx-pyannote-segmentation-3-0.tar.bz2
+// then unzip it, rename model.onnx to segmentation.onnx, and mv
+// segmentation.onnx to the assets folder
+val segmentationModel = "segmentation.onnx"
+
+// please download it from
+// https://github.com/k2-fsa/sherpa-onnx/releases/download/speaker-recongition-models/3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx
+// and move it to the assets folder
+val embeddingModel = "3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx"
+
+// in the end, your assets folder should look like below
+/*
+(py38) fangjuns-MacBook-Pro:assets fangjun$ pwd
+/Users/fangjun/open-source/sherpa-onnx/android/SherpaOnnxSpeakerDiarization/app/src/main/assets
+(py38) fangjuns-MacBook-Pro:assets fangjun$ ls -lh
+total 89048
+-rw-r--r--  1 fangjun  staff    38M Oct 12 20:28 3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx
+-rw-r--r--  1 fangjun  staff   5.7M Oct 12 20:28 segmentation.onnx
+ */
+
+object SpeakerDiarizationObject {
+    var _sd: OfflineSpeakerDiarization? = null
+    val sd: OfflineSpeakerDiarization
+        get() {
+            return _sd!!
+        }
+
+    fun initSpeakerDiarization(assetManager: AssetManager? = null) {
+        synchronized(this) {
+            if (_sd != null) {
+                return
+            }
+            Log.i(TAG, "Initializing sherpa-onnx speaker diarization")
+
+            val config = OfflineSpeakerDiarizationConfig(
+                segmentation = OfflineSpeakerSegmentationModelConfig(
+                    pyannote = OfflineSpeakerSegmentationPyannoteModelConfig(
+                        segmentationModel
+                    ),
+                    debug = true,
+                ),
+                embedding = SpeakerEmbeddingExtractorConfig(
+                    model = embeddingModel,
+                    debug = true,
+                    numThreads = 2,
+                ),
+                clustering = FastClusteringConfig(numClusters = -1, threshold = 0.5f),
+                minDurationOn = 0.2f,
+                minDurationOff = 0.5f,
+            )
+            _sd = OfflineSpeakerDiarization(assetManager = assetManager, config = config)
+        }
+    }
+}
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/SpeakerEmbeddingExtractorConfig.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/SpeakerEmbeddingExtractorConfig.kt
@@ -0,0 +1 @@
+../../../../../../../../../../../../sherpa-onnx/kotlin-api/SpeakerEmbeddingExtractorConfig.kt
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/screens/Help.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/screens/Help.kt
@@ -0,0 +1,38 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization.screens
+
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+
+@Composable
+fun HelpScreen() {
+    Box(modifier = Modifier.fillMaxSize()) {
+        Column(
+            modifier = Modifier.padding(8.dp)
+        ) {
+            Text(
+                "This app accepts only 16kHz 16-bit 1-channel *.wav files. " +
+                        "It has two arguments: Number of speakers and clustering threshold. " +
+                        "If you know the actual number of speakers in the file, please set it. " +
+                        "Otherwise, please set it to 0. In that case, you have to set the threshold. " +
+                        "A larger threshold leads to fewer segmented speakers."
+            )
+            Spacer(modifier = Modifier.height(5.dp))
+            Text("The speaker segmentation model is from " +
+                "pyannote-audio (https://huggingface.co/pyannote/segmentation-3.0), "+
+                 "whereas the embedding extractor model is from 3D-Speaker (https://github.com/modelscope/3D-Speaker)")
+            Spacer(modifier = Modifier.height(5.dp))
+            Text("Please see http://github.com/k2-fsa/sherpa-onnx ")
+            Spacer(modifier = Modifier.height(5.dp))
+            Text("Everything is open-sourced!", fontSize = 20.sp)
+        }
+    }
+}
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/screens/Home.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/screens/Home.kt
@@ -0,0 +1,210 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization.screens
+
+import android.util.Log
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.Button
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalClipboardManager
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.AnnotatedString
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.documentfile.provider.DocumentFile
+import com.k2fsa.sherpa.onnx.speaker.diarization.SpeakerDiarizationObject
+import com.k2fsa.sherpa.onnx.speaker.diarization.TAG
+import kotlin.concurrent.thread
+
+
+private var samples: FloatArray? = null
+
+@Composable
+fun HomeScreen() {
+    val context = LocalContext.current
+
+    var sampleRate: Int
+    var filename by remember { mutableStateOf("") }
+    var status by remember { mutableStateOf("") }
+    var progress by remember { mutableStateOf("") }
+    val clipboardManager = LocalClipboardManager.current
+    var done by remember { mutableStateOf(false) }
+    var fileIsOk by remember { mutableStateOf(false) }
+    var started by remember { mutableStateOf(false) }
+    var numSpeakers by remember { mutableStateOf(0) }
+    var threshold by remember { mutableStateOf(0.5f) }
+
+
+    val callback = here@{ numProcessedChunks: Int, numTotalChunks: Int, arg: Long ->
+        Int
+        val percent = 100.0 * numProcessedChunks / numTotalChunks
+        progress = "%.2f%%".format(percent)
+        Log.i(TAG, progress)
+        return@here 0
+    }
+
+    val launcher = rememberLauncherForActivityResult(ActivityResultContracts.OpenDocument()) {
+        it?.let {
+            val documentFile = DocumentFile.fromSingleUri(context, it)
+            filename = documentFile?.name ?: ""
+
+            progress = ""
+            done = false
+            fileIsOk = false
+
+            if (filename.isNotEmpty()) {
+                val data = readUri(context, it)
+                Log.i(TAG, "sample rate: ${data.sampleRate}")
+                Log.i(TAG, "numSamples: ${data.samples?.size ?: 0}")
+                if (data.msg != null) {
+                    Log.i(TAG, "failed to read $filename")
+                    status = data.msg
+                } else if (data.sampleRate != SpeakerDiarizationObject.sd.sampleRate()) {
+                    status =
+                        "Expected sample rate: ${SpeakerDiarizationObject.sd.sampleRate()}. Given wave file with sample rate: ${data.sampleRate}"
+                } else {
+                    samples = data.samples!!
+                    fileIsOk = true
+                }
+            }
+        }
+    }
+
+    Column(
+        modifier = Modifier.padding(10.dp),
+        verticalArrangement = Arrangement.Top,
+    ) {
+        Row(
+            modifier = Modifier.fillMaxWidth(),
+            horizontalArrangement = Arrangement.SpaceEvenly,
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+
+            Button(onClick = {
+                launcher.launch(arrayOf("audio/*"))
+            }) {
+                Text("Select a .wav file")
+            }
+
+            Button(enabled = fileIsOk && !started,
+                onClick = {
+                    Log.i(TAG, "started")
+                    Log.i(TAG, "num samples: ${samples?.size}")
+                    started = true
+                    progress = ""
+
+                    val config = SpeakerDiarizationObject.sd.config
+                    config.clustering.numClusters = numSpeakers
+                    config.clustering.threshold = threshold
+
+                    SpeakerDiarizationObject.sd.setConfig(config)
+
+                    thread(true) {
+                        done = false
+                        status = "Started! Please wait"
+                        val segments = SpeakerDiarizationObject.sd.processWithCallback(
+                            samples!!,
+                            callback = callback,
+                        )
+                        done = true
+                        started = false
+                        status = ""
+                        for (s in segments) {
+                            val start = "%.2f".format(s.start)
+                            val end = "%.2f".format(s.end)
+                            val speaker = "speaker_%02d".format(s.speaker)
+                            status += "$start -- $end $speaker\n"
+                            Log.i(TAG, "$start -- $end $speaker")
+                        }
+
+                        Log.i(TAG, status)
+                    }
+                }) {
+                Text("Start")
+            }
+            if (progress.isNotEmpty()) {
+                Text(progress, fontSize = 25.sp)
+            }
+        }
+
+        Row(
+            modifier = Modifier.fillMaxWidth(),
+            horizontalArrangement = Arrangement.SpaceEvenly,
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            OutlinedTextField(
+                value = numSpeakers.toString(),
+                onValueChange = {
+                    if (it.isEmpty() || it.isBlank()) {
+                        numSpeakers = 0
+                    } else {
+                        numSpeakers = it.toIntOrNull() ?: 0
+                    }
+                },
+                label = {
+                    Text("Number of Speakers")
+                },
+            )
+        }
+
+        Row(
+            modifier = Modifier.fillMaxWidth(),
+            horizontalArrangement = Arrangement.SpaceEvenly,
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            OutlinedTextField(
+                value = threshold.toString(),
+                onValueChange = {
+                    if (it.isEmpty() || it.isBlank()) {
+                        threshold = 0.5f
+                    } else {
+                        threshold = it.toFloatOrNull() ?: 0.5f
+                    }
+                },
+                label = {
+                    Text("Clustering threshold")
+                },
+            )
+        }
+
+        if (filename.isNotEmpty()) {
+            Text(text = "Selected $filename")
+            Spacer(Modifier.size(20.dp))
+        }
+
+        if (done) {
+            Button(onClick = {
+                clipboardManager.setText(AnnotatedString(status))
+                progress = "Copied!"
+            }) {
+                Text("Copy result")
+            }
+            Spacer(Modifier.size(20.dp))
+        }
+
+        if (status.isNotEmpty()) {
+            Text(
+                status,
+                modifier = Modifier.verticalScroll(rememberScrollState()),
+            )
+        }
+
+
+    }
+}
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/ui/theme/Color.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/ui/theme/Color.kt
@@ -0,0 +1,11 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/ui/theme/Theme.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/ui/theme/Theme.kt
@@ -0,0 +1,58 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization.ui.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+
+private val DarkColorScheme = darkColorScheme(
+    primary = Purple80,
+    secondary = PurpleGrey80,
+    tertiary = Pink80
+)
+
+private val LightColorScheme = lightColorScheme(
+    primary = Purple40,
+    secondary = PurpleGrey40,
+    tertiary = Pink40
+
+    /* Other default colors to override
+    background = Color(0xFFFFFBFE),
+    surface = Color(0xFFFFFBFE),
+    onPrimary = Color.White,
+    onSecondary = Color.White,
+    onTertiary = Color.White,
+    onBackground = Color(0xFF1C1B1F),
+    onSurface = Color(0xFF1C1B1F),
+    */
+)
+
+@Composable
+fun SherpaOnnxSpeakerDiarizationTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    // Dynamic color is available on Android 12+
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit
+) {
+    val colorScheme = when {
+        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            val context = LocalContext.current
+            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+        }
+
+        darkTheme -> DarkColorScheme
+        else -> LightColorScheme
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content
+    )
+}
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/ui/theme/Type.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/diarization/ui/theme/Type.kt
@@ -0,0 +1,34 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization.ui.theme
+
+import androidx.compose.material3.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+    bodyLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.5.sp
+    )
+    /* Other default text styles to override
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp
+    )
+    */
+)
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/jniLibs/arm64-v8a/.gitkeep
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/jniLibs/arm64-v8a/.gitkeep
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/jniLibs/armeabi-v7a/.gitkeep
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/jniLibs/armeabi-v7a/.gitkeep
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/jniLibs/x86/.gitkeep
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/jniLibs/x86/.gitkeep
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/jniLibs/x86_64/.gitkeep
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/jniLibs/x86_64/.gitkeep
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-hdpi/ic_launcher.webp
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-hdpi/ic_launcher.webp
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-mdpi/ic_launcher.webp
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-mdpi/ic_launcher.webp
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/values/colors.xml
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/values/colors.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/values/strings.xml
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/values/strings.xml
@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">SherpaOnnxSpeakerDiarization</string>
+</resources>
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/values/themes.xml
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/values/themes.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="Theme.SherpaOnnxSpeakerDiarization" parent="android:Theme.Material.Light.NoActionBar" />
+</resources>
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/xml/backup_rules.xml
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/xml/backup_rules.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older that API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>
--- a/android/SherpaOnnxSpeakerDiarization/app/src/main/res/xml/data_extraction_rules.xml
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/main/res/xml/data_extraction_rules.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>
--- a/android/SherpaOnnxSpeakerDiarization/app/src/test/java/com/k2fsa/sherpa/onnx/speaker/diarization/ExampleUnitTest.kt
+++ b/android/SherpaOnnxSpeakerDiarization/app/src/test/java/com/k2fsa/sherpa/onnx/speaker/diarization/ExampleUnitTest.kt
@@ -0,0 +1,17 @@
+package com.k2fsa.sherpa.onnx.speaker.diarization
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}
--- a/android/SherpaOnnxSpeakerDiarization/build.gradle.kts
+++ b/android/SherpaOnnxSpeakerDiarization/build.gradle.kts
@@ -0,0 +1,5 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    alias(libs.plugins.android.application) apply false
+    alias(libs.plugins.jetbrains.kotlin.android) apply false
+}
--- a/android/SherpaOnnxSpeakerDiarization/gradle.properties
+++ b/android/SherpaOnnxSpeakerDiarization/gradle.properties
@@ -0,0 +1,23 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. For more details, visit
+# https://developer.android.com/r/tools/gradle-multi-project-decoupled-projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
--- a/android/SherpaOnnxSpeakerDiarization/gradle/libs.versions.toml
+++ b/android/SherpaOnnxSpeakerDiarization/gradle/libs.versions.toml
@@ -0,0 +1,35 @@
+[versions]
+agp = "8.4.0"
+kotlin = "1.9.0"
+coreKtx = "1.10.1"
+junit = "4.13.2"
+junitVersion = "1.1.5"
+espressoCore = "3.5.1"
+lifecycleRuntimeKtx = "2.6.1"
+activityCompose = "1.8.0"
+composeBom = "2023.08.00"
+navigationCompose = "2.8.2"
+documentfile = "1.0.1"
+
+[libraries]
+androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
+junit = { group = "junit", name = "junit", version.ref = "junit" }
+androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
+androidx-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }
+androidx-lifecycle-runtime-ktx = { group = "androidx.lifecycle", name = "lifecycle-runtime-ktx", version.ref = "lifecycleRuntimeKtx" }
+androidx-activity-compose = { group = "androidx.activity", name = "activity-compose", version.ref = "activityCompose" }
+androidx-compose-bom = { group = "androidx.compose", name = "compose-bom", version.ref = "composeBom" }
+androidx-ui = { group = "androidx.compose.ui", name = "ui" }
+androidx-ui-graphics = { group = "androidx.compose.ui", name = "ui-graphics" }
+androidx-ui-tooling = { group = "androidx.compose.ui", name = "ui-tooling" }
+androidx-ui-tooling-preview = { group = "androidx.compose.ui", name = "ui-tooling-preview" }
+androidx-ui-test-manifest = { group = "androidx.compose.ui", name = "ui-test-manifest" }
+androidx-ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit4" }
+androidx-material3 = { group = "androidx.compose.material3", name = "material3" }
+androidx-navigation-compose = { group = "androidx.navigation", name = "navigation-compose", version.ref = "navigationCompose" }
+androidx-documentfile = { group = "androidx.documentfile", name = "documentfile", version.ref = "documentfile" }
+
+[plugins]
+android-application = { id = "com.android.application", version.ref = "agp" }
+jetbrains-kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
+
--- a/android/SherpaOnnxSpeakerDiarization/gradle/wrapper/gradle-wrapper.jar
+++ b/android/SherpaOnnxSpeakerDiarization/gradle/wrapper/gradle-wrapper.jar
--- a/android/SherpaOnnxSpeakerDiarization/gradle/wrapper/gradle-wrapper.properties
+++ b/android/SherpaOnnxSpeakerDiarization/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Sat Oct 12 14:27:04 CST 2024
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
--- a/android/SherpaOnnxSpeakerDiarization/gradlew
+++ b/android/SherpaOnnxSpeakerDiarization/gradlew
@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"
--- a/android/SherpaOnnxSpeakerDiarization/gradlew.bat
+++ b/android/SherpaOnnxSpeakerDiarization/gradlew.bat
@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/android/SherpaOnnxSpeakerDiarization/settings.gradle.kts
+++ b/android/SherpaOnnxSpeakerDiarization/settings.gradle.kts
@@ -0,0 +1,23 @@
+pluginManagement {
+    repositories {
+        google {
+            content {
+                includeGroupByRegex("com\\.android.*")
+                includeGroupByRegex("com\\.google.*")
+                includeGroupByRegex("androidx.*")
+            }
+        }
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "SherpaOnnxSpeakerDiarization"
+include(":app")
--- a/android/SherpaOnnxSpeakerIdentification/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/identification/SpeakerEmbeddingExtractorConfig.kt
+++ b/android/SherpaOnnxSpeakerIdentification/app/src/main/java/com/k2fsa/sherpa/onnx/speaker/identification/SpeakerEmbeddingExtractorConfig.kt
@@ -0,0 +1 @@
+../../../../../../../../../../../../sherpa-onnx/kotlin-api/SpeakerEmbeddingExtractorConfig.kt
--- a/kotlin-api-examples/SpeakerEmbeddingExtractorConfig.kt
+++ b/kotlin-api-examples/SpeakerEmbeddingExtractorConfig.kt
@@ -0,0 +1 @@
+../sherpa-onnx/kotlin-api/SpeakerEmbeddingExtractorConfig.kt
--- a/kotlin-api-examples/run.sh
+++ b/kotlin-api-examples/run.sh
@@ -48,6 +48,7 @@ function testSpeakerEmbeddingExtractor() {
    test_speaker_id.kt \
    OnlineStream.kt \
    Speaker.kt \
+    SpeakerEmbeddingExtractorConfig.kt \
    WaveReader.kt \
    faked-asset-manager.kt \
    faked-log.kt
@@ -305,6 +306,7 @@ function testOfflineSpeakerDiarization() {
    test_offline_speaker_diarization.kt \
    OfflineSpeakerDiarization.kt \
    Speaker.kt \
+    SpeakerEmbeddingExtractorConfig.kt \
    OnlineStream.kt \
    WaveReader.kt \
    faked-asset-manager.kt \
--- a/scripts/apk/build-apk-speaker-diarization.sh
+++ b/scripts/apk/build-apk-speaker-diarization.sh
@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+#
+# Please set the environment variable ANDROID_NDK
+# before running this script
+
+# Inside the $ANDROID_NDK directory, you can find a binary ndk-build
+# and some other files like the file "build/cmake/android.toolchain.cmake"
+
+set -ex
+
+log() {
+  # This function is from espnet
+  local fname=${BASH_SOURCE[1]##*/}
+  echo -e "$(date '+%Y-%m-%d %H:%M:%S') (${fname}:${BASH_LINENO[0]}:${FUNCNAME[1]}) $*"
+}
+
+SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+
+log "Building Speaker identification APK for sherpa-onnx v${SHERPA_ONNX_VERSION}"
+
+export SHERPA_ONNX_ENABLE_TTS=OFF
+
+log "====================arm64-v8a================="
+./build-android-arm64-v8a.sh
+log "====================armv7-eabi================"
+./build-android-armv7-eabi.sh
+log "====================x86-64===================="
+./build-android-x86-64.sh
+log "====================x86===================="
+./build-android-x86.sh
+
+mkdir -p apks
+
+pushd ./android/SherpaOnnxSpeakerDiarization/app/src/main/assets/
+
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/speaker-segmentation-models/sherpa-onnx-pyannote-segmentation-3-0.tar.bz2
+tar xvf sherpa-onnx-pyannote-segmentation-3-0.tar.bz2
+rm sherpa-onnx-pyannote-segmentation-3-0.tar.bz2
+mv sherpa-onnx-pyannote-segmentation-3-0/model.onnx segmentation.onnx
+rm -rf sherpa-onnx-pyannote-segmentation-3-0
+
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/speaker-recongition-models/3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx
+
+echo "pwd: $PWD"
+ls -lh
+
+popd
+
+for arch in arm64-v8a armeabi-v7a x86_64 x86; do
+  log "------------------------------------------------------------"
+  log "build speaker diarization apk for $arch"
+  log "------------------------------------------------------------"
+  src_arch=$arch
+  if [ $arch == "armeabi-v7a" ]; then
+    src_arch=armv7-eabi
+  elif [ $arch == "x86_64" ]; then
+    src_arch=x86-64
+  fi
+
+  ls -lh ./build-android-$src_arch/install/lib/*.so
+
+  cp -v ./build-android-$src_arch/install/lib/*.so ./android/SherpaOnnxSpeakerDiarization/app/src/main/jniLibs/$arch/
+
+  pushd ./android/SherpaOnnxSpeakerDiarization
+  ./gradlew build
+  popd
+
+  mv android/SherpaOnnxSpeakerDiarization/app/build/outputs/apk/debug/app-debug.apk ./apks/sherpa-onnx-${SHERPA_ONNX_VERSION}-$arch-speaker-diarization-pyannote_audio-3dspeaker.apk
+  ls -lh apks
+  rm -v ./android/SherpaOnnxSpeakerDiarization/app/src/main/jniLibs/$arch/*.so
+done
+
+ls -lh apks
--- a/sherpa-onnx/kotlin-api/OfflineSpeakerDiarization.kt
+++ b/sherpa-onnx/kotlin-api/OfflineSpeakerDiarization.kt
@@ -34,7 +34,7 @@ data class OfflineSpeakerDiarizationSegment(

 class OfflineSpeakerDiarization(
    assetManager: AssetManager? = null,
-    config: OfflineSpeakerDiarizationConfig,
+    val config: OfflineSpeakerDiarizationConfig,
 ) {
    private var ptr: Long

@@ -64,7 +64,7 @@ class OfflineSpeakerDiarization(
    fun process(samples: FloatArray) = process(ptr, samples)

    fun processWithCallback(
-        samples: FloatArray, 
+        samples: FloatArray,
        callback: (numProcessedChunks: Int, numTotalChunks: Int, arg: Long) -> Int,
        arg: Long = 0,
    ) = processWithCallback(ptr, samples, callback, arg)
@@ -84,14 +84,17 @@ class OfflineSpeakerDiarization(

    private external fun getSampleRate(ptr: Long): Int

-    private external fun process(ptr: Long, samples: FloatArray): Array<OfflineSpeakerDiarizationSegment>
+    private external fun process(
+        ptr: Long,
+        samples: FloatArray
+    ): Array<OfflineSpeakerDiarizationSegment>

    private external fun processWithCallback(
        ptr: Long,
        samples: FloatArray,
        callback: (numProcessedChunks: Int, numTotalChunks: Int, arg: Long) -> Int,
        arg: Long,
-        ): Array<OfflineSpeakerDiarizationSegment>
+    ): Array<OfflineSpeakerDiarizationSegment>

    companion object {
        init {
--- a/sherpa-onnx/kotlin-api/Speaker.kt
+++ b/sherpa-onnx/kotlin-api/Speaker.kt
@@ -3,13 +3,6 @@ package com.k2fsa.sherpa.onnx
 import android.content.res.AssetManager
 import android.util.Log

-data class SpeakerEmbeddingExtractorConfig(
-    val model: String,
-    var numThreads: Int = 1,
-    var debug: Boolean = false,
-    var provider: String = "cpu",
-)
-
 class SpeakerEmbeddingExtractor(
    assetManager: AssetManager? = null,
    config: SpeakerEmbeddingExtractorConfig,
--- a/sherpa-onnx/kotlin-api/SpeakerEmbeddingExtractorConfig.kt
+++ b/sherpa-onnx/kotlin-api/SpeakerEmbeddingExtractorConfig.kt
@@ -0,0 +1,8 @@
+package com.k2fsa.sherpa.onnx
+
+data class SpeakerEmbeddingExtractorConfig(
+    val model: String,
+    var numThreads: Int = 1,
+    var debug: Boolean = false,
+    var provider: String = "cpu",
+)
				`@@ -0,0 +1 @@`
				`../../../../../../../../../../../../sherpa-onnx/kotlin-api/OfflineSpeakerDiarization.kt`
				`@@ -0,0 +1 @@`
				`../sherpa-onnx/kotlin-api/SpeakerEmbeddingExtractorConfig.kt`