Add C/CXX/JavaScript API for NeMo Canary models (#2357)

This PR introduces support for NeMo Canary models across C, C++, and JavaScript APIs 
by adding new Canary configuration structures, updating bindings, extending examples,
and enhancing CI workflows.

- Add OfflineCanaryModelConfig to all language bindings (C, C++, JS, ETS).
- Implement SetConfig methods and NAPI wrappers for updating recognizer config at runtime.
- Update examples and CI scripts to demonstrate and test NeMo Canary model usage.

.github/scripts/test-nodejs-addon-npm.sh

@@ -10,6 +10,16 @@ arch=$(node -p "require('os').arch()")
 platform=$(node -p "require('os').platform()")
 node_version=$(node -p "process.versions.node.split('.')[0]")
 
+echo "----------non-streaming ASR NeMo Canary----------"
+
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+tar xvf sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+rm sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+
+node ./test_asr_non_streaming_nemo_canary.js
+
+rm -rf sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8
+
 echo "----------non-streaming ASR Zipformer CTC----------"
 curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-zipformer-ctc-zh-int8-2025-07-03.tar.bz2
 

.github/scripts/test-nodejs-npm.sh

@@ -9,6 +9,14 @@ git status
 ls -lh
 ls -lh node_modules
 
+# asr with offline nemo canary
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+tar xvf sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+rm sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+
+node ./test-offline-nemo-canary.js
+rm -rf sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8
+
 # asr with offline zipformer ctc
 curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-zipformer-ctc-zh-int8-2025-07-03.tar.bz2
 

.github/scripts/test-online-ctc.sh

@@ -77,16 +77,6 @@ time $EXE \
   $repo/test_wavs/DEV_T0000000001.wav \
   $repo/test_wavs/DEV_T0000000002.wav
 
-log "test int8"
-
-time $EXE \
-  --debug=1 \
-  --zipformer2-ctc-model=$repo/ctc-epoch-20-avg-1-chunk-16-left-128.int8.onnx \
-  --tokens=$repo/tokens.txt \
-  $repo/test_wavs/DEV_T0000000000.wav \
-  $repo/test_wavs/DEV_T0000000001.wav \
-  $repo/test_wavs/DEV_T0000000002.wav
-
 rm -rf $repo
 
 log "------------------------------------------------------------"

.github/workflows/c-api.yaml

@@ -127,6 +127,36 @@ jobs:
           rm -rf dict lexicon.txt test-hr.wav replace.fst
           rm -v $name
 
+      - name: Test NeMo Canary
+        shell: bash
+        run: |
+          name=nemo-canary-c-api
+          gcc -o $name ./c-api-examples/$name.c \
+            -I ./build/install/include \
+            -L ./build/install/lib/ \
+            -l sherpa-onnx-c-api \
+            -l onnxruntime
+
+          ls -lh $name
+
+          if [[ ${{ matrix.os }} == ubuntu-latest || ${{ matrix.os }} == ubuntu-22.04-arm ]]; then
+            ldd ./$name
+            echo "----"
+            readelf -d ./$name
+          fi
+
+          curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+          tar xvf sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+          rm sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+
+          export LD_LIBRARY_PATH=$PWD/build/install/lib:$LD_LIBRARY_PATH
+          export DYLD_LIBRARY_PATH=$PWD/build/install/lib:$DYLD_LIBRARY_PATH
+
+          ./$name
+
+          rm $name
+          rm -rf sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8
+
       - name: Test Dolphin CTC
         shell: bash
         run: |

.github/workflows/cxx-api.yaml

@@ -87,6 +87,40 @@ jobs:
             otool -L ./install/lib/libsherpa-onnx-cxx-api.dylib
           fi
 
+      - name: Test NeMo Canary
+        shell: bash
+        run: |
+          name=nemo-canary-cxx-api
+          g++ -std=c++17 -o $name ./cxx-api-examples/$name.cc \
+            -I ./build/install/include \
+            -L ./build/install/lib/ \
+            -l sherpa-onnx-cxx-api \
+            -l sherpa-onnx-c-api \
+            -l onnxruntime
+
+          ls -lh $name
+
+          if [[ ${{ matrix.os }} == ubuntu-latest || ${{ matrix.os }} == ubuntu-22.04-arm ]]; then
+            ldd ./$name
+            echo "----"
+            readelf -d ./$name
+          fi
+
+          curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+          tar xvf sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+          rm sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8.tar.bz2
+
+          ls -lh sherpa-onnx-nemo-canary-180m-flash-en-es-de-fr-int8
+          echo "---"
+
+          export LD_LIBRARY_PATH=$PWD/build/install/lib:$LD_LIBRARY_PATH
+          export DYLD_LIBRARY_PATH=$PWD/build/install/lib:$DYLD_LIBRARY_PATH
+
+          ./$name
+
+          rm -rf sherpa-onnx-nemo-canary-*
+          rm -v ./$name
+
       - name: Test streaming zipformer with Homophone replacer
         shell: bash
         run: |