Add spoken language identification for node-addon-api (#872)

nodejs-addon-examples/test_spoken_language_identification.js

@@ -0,0 +1,40 @@
+// Copyright (c)  2023-2024  Xiaomi Corporation (authors: Fangjun Kuang)
+
+const sherpa_onnx = require('sherpa-onnx-node');
+
+function createSpokenLanguageID() {
+  const config = {
+    whisper: {
+      encoder: './sherpa-onnx-whisper-tiny/tiny-encoder.int8.onnx',
+      decoder: './sherpa-onnx-whisper-tiny/tiny-decoder.int8.onnx',
+    },
+    debug: true,
+    numThreads: 1,
+    provider: 'cpu',
+  };
+  return new sherpa_onnx.SpokenLanguageIdentification(config);
+}
+
+const slid = createSpokenLanguageID();
+
+const testWaves = [
+  './spoken-language-identification-test-wavs/ar-arabic.wav',
+  './spoken-language-identification-test-wavs/de-german.wav',
+  './spoken-language-identification-test-wavs/en-english.wav',
+  './spoken-language-identification-test-wavs/fr-french.wav',
+  './spoken-language-identification-test-wavs/pt-portuguese.wav',
+  './spoken-language-identification-test-wavs/es-spanish.wav',
+  './spoken-language-identification-test-wavs/zh-chinese.wav',
+];
+
+const display = new Intl.DisplayNames(['en'], {type: 'language'})
+
+for (let f of testWaves) {
+  const stream = slid.createStream();
+
+  const wave = sherpa_onnx.readWave(f);
+  stream.acceptWaveform({sampleRate: wave.sampleRate, samples: wave.samples});
+
+  const lang = slid.compute(stream);
+  console.log(f.split('/')[2], lang, display.of(lang));
+}