Add JavaScript API (wasm) for speech enhancement GTCRN models (#2007)

 {
   "name": "sherpa-onnx-PLATFORM2-ARCH",
   "version": "SHERPA_ONNX_VERSION",
-  "description": "Speech-to-text, text-to-speech, and speaker diarization using Next-gen Kaldi without internet connection",
+  "description": "Speech-to-text, text-to-speech, speaker diarization, and speech enhancement using Next-gen Kaldi without internet connection",
   "main": "index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
@@ -46,7 +46,9 @@
     "vad",
     "node-addon-api",
     "speaker id",
-    "language id"
+    "language id",
+    "speech enhancement",
+    "denoising"
   ],
   "author": "The next-gen Kaldi team",
   "license": "Apache-2.0",

 {
   "name": "sherpa-onnx-node",
   "version": "SHERPA_ONNX_VERSION",
-  "description": "Speech-to-text, text-to-speech, and speaker diarization using Next-gen Kaldi without internet connection",
+  "description": "Speech-to-text, text-to-speech, speaker diarization, and speech enhancement using Next-gen Kaldi without internet connection",
   "main": "sherpa-onnx.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
@@ -46,7 +46,9 @@
     "vad",
     "node-addon-api",
     "speaker id",
-    "language id"
+    "language id",
+    "speech enhancement",
+    "denoising"
   ],
   "author": "The next-gen Kaldi team",
   "license": "Apache-2.0",

@@ -9,6 +9,16 @@ git status
 ls -lh
 ls -lh node_modules
 
+# speech enhancement
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/speech-enhancement-models/gtcrn_simple.onnx
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/speech-enhancement-models/inp_16k.wav
+node ./test-offline-speech-enhancement-gtcrn.js
+ls -lh *.wav
+rm gtcrn_simple.onnx
+rm inp_16k.wav
+rm enhanced-16k.wav
+
+
 # offline tts
 #
 curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/kokoro-multi-lang-v1_0.tar.bz2

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - wasm
-      - wasm-gtcrn
     tags:
       - 'v[0-9]+.[0-9]+.[0-9]+*'
 
@@ -79,9 +78,9 @@ jobs:
           file_glob: true
           overwrite: true
           file: ./*.tar.bz2
-          repo_name: k2-fsa/sherpa-onnx
-          repo_token: ${{ secrets.UPLOAD_GH_SHERPA_ONNX_TOKEN }}
-          tag: v1.10.46
+          # repo_name: k2-fsa/sherpa-onnx
+          # repo_token: ${{ secrets.UPLOAD_GH_SHERPA_ONNX_TOKEN }}
+          # tag: v1.10.46
 
       - name: Release
         if: github.repository_owner == 'k2-fsa' && github.event_name == 'push' && contains(github.ref, 'refs/tags/')

@@ -24,6 +24,16 @@ In the following, we describe how to use [sherpa-onnx](https://github.com/k2-fsa
 for text-to-speech and speech-to-text.
 
 
+# Speech enhancement
+
+In the following, we demonstrate how to run speech enhancement.
+
+```bash
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/speech-enhancement-models/gtcrn_simple.onnx
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/speech-enhancement-models/inp_16k.wav
+node ./test-offline-speech-enhancement-gtcrn.js
+```
+
 # Speaker diarization
 
 In the following, we demonstrate how to run speaker diarization.

+// Copyright (c)  2025  Xiaomi Corporation (authors: Fangjun Kuang)
+//
+// Please download ./gtcrn_simple.onnx and ./inp_16k.wav used in this file
+// from
+// https://github.com/k2-fsa/sherpa-onnx/releases/tag/speech-enhancement-models
+//
+// This script shows how to use speech enhancement API from sherpa-onnx.
+const sherpa_onnx = require('sherpa-onnx');
+
+function createOfflineSpeechDenoiser() {
+  let config = {
+    model: {
+      gtcrn: {model: './gtcrn_simple.onnx'},
+      debug: 1,
+    },
+  };
+
+  return sherpa_onnx.createOfflineSpeechDenoiser(config);
+}
+
+speech_denoiser = createOfflineSpeechDenoiser();
+
+const waveFilename = './inp_16k.wav';
+const wave = sherpa_onnx.readWave(waveFilename);
+
+const denoised = speech_denoiser.run(wave.samples, wave.sampleRate);
+sherpa_onnx.writeWave('./enhanced-16k.wav', denoised);
+console.log('Saved to ./enhanced-16k.wav');
+
+speech_denoiser.free();

@@ -9,6 +9,10 @@ const sherpa_onnx_wave = require('./sherpa-onnx-wave.js');
 const sherpa_onnx_vad = require('./sherpa-onnx-vad.js');
 const sherpa_onnx_speaker_diarization =
     require('./sherpa-onnx-speaker-diarization.js');
+const sherpa_onnx_speech_enhancement =
+    require('./sherpa-onnx-speech-enhancement.js');
+
+
 
 function createOnlineRecognizer(config) {
   return sherpa_onnx_asr.createOnlineRecognizer(wasmModule, config);
@@ -47,6 +51,15 @@ function writeWave(filename, data) {
   sherpa_onnx_wave.writeWave(filename, data, wasmModule);
 }
 
+function readWaveFromBinaryData(uint8Array) {
+  return sherpa_onnx_wave.readWaveFromBinaryData(uint8Array, wasmModule);
+}
+
+function createOfflineSpeechDenoiser(config) {
+  return sherpa_onnx_speech_enhancement.createOfflineSpeechDenoiser(
+      wasmModule, config);
+}
+
 // Note: online means streaming and offline means non-streaming here.
 // Both of them don't require internet connection.
 module.exports = {
@@ -55,8 +68,10 @@ module.exports = {
   createOfflineTts,
   createKws,
   readWave,
+  readWaveFromBinaryData,
   writeWave,
   createCircularBuffer,
   createVad,
   createOfflineSpeakerDiarization,
+  createOfflineSpeechDenoiser,
 };

 {
   "name": "sherpa-onnx",
   "version": "SHERPA_ONNX_VERSION",
-  "description": "Speech-to-text and text-to-speech using Next-gen Kaldi without internet connection",
+  "description": "Speech-to-text, text-to-speech, speaker diarization, and speech enhancement using Next-gen Kaldi without internet connection",
   "main": "index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
@@ -34,7 +34,9 @@
     "speech",
     "recognition",
     "WebAssembly",
-    "wasm"
+    "wasm",
+    "speech enhancement",
+    "denoising"
   ],
   "author": "The next-gen Kaldi team",
   "license": "Apache-2.0",

@@ -49,6 +49,7 @@ set(exported_functions
   SherpaOnnxDestroyKeywordSpotter
   SherpaOnnxGetKeywordResult
   SherpaOnnxIsKeywordStreamReady
+  SherpaOnnxResetKeywordStream
   # VAD
   SherpaOnnxCreateCircularBuffer
   SherpaOnnxDestroyCircularBuffer
@@ -87,6 +88,12 @@ set(exported_functions
   SherpaOnnxReadWaveFromBinaryData
   SherpaOnnxFreeWave
   SherpaOnnxWriteWave
+  # speech enhancement
+  SherpaOnnxCreateOfflineSpeechDenoiser
+  SherpaOnnxDestroyDenoisedAudio
+  SherpaOnnxDestroyOfflineSpeechDenoiser
+  SherpaOnnxOfflineSpeechDenoiserGetSampleRate
+  SherpaOnnxOfflineSpeechDenoiserRun
 )
 
 
@@ -122,6 +129,7 @@ install(
   ${CMAKE_SOURCE_DIR}/wasm/kws/sherpa-onnx-kws.js
   ${CMAKE_SOURCE_DIR}/wasm/vad/sherpa-onnx-vad.js
   ${CMAKE_SOURCE_DIR}/wasm/speaker-diarization/sherpa-onnx-speaker-diarization.js
+  ${CMAKE_SOURCE_DIR}/wasm/speech-enhancement/sherpa-onnx-speech-enhancement.js
   ${CMAKE_SOURCE_DIR}/wasm/nodejs/sherpa-onnx-wave.js
     "$<TARGET_FILE_DIR:sherpa-onnx-wasm-nodejs>/sherpa-onnx-wasm-nodejs.js"
     "$<TARGET_FILE_DIR:sherpa-onnx-wasm-nodejs>/sherpa-onnx-wasm-nodejs.wasm"

@@ -26,21 +26,21 @@ function readWave(filename, Module) {
   return {samples: samples, sampleRate: sampleRate};
 }
 
-function readWaveFromBinaryData(uint8Array) {
+function readWaveFromBinaryData(uint8Array, Module) {
   const numBytes = uint8Array.length * uint8Array.BYTES_PER_ELEMENT;
-  const pointer = this.Module._malloc(numBytes);
+  const pointer = Module._malloc(numBytes);
 
   const dataOnHeap = new Uint8Array(Module.HEAPU8.buffer, pointer, numBytes);
   dataOnHeap.set(uint8Array);
 
-  const w = this.Module._SherpaOnnxReadWaveFromBinaryData(
-      dataOnHeap.byteOffset, numBytes);
+  const w =
+      Module._SherpaOnnxReadWaveFromBinaryData(dataOnHeap.byteOffset, numBytes);
   if (w == 0) {
     console.log('Failed to read wave from binary data');
     return null;
   }
 
-  this.Module._free(pointer);
+  Module._free(pointer);
 
   const samplesPtr = Module.HEAP32[w / 4] / 4;
   const sampleRate = Module.HEAP32[w / 4 + 1];

@@ -9,14 +9,14 @@ endif()
 set(exported_functions
   MyPrint
   SherpaOnnxCreateOfflineSpeechDenoiser
+  SherpaOnnxDestroyDenoisedAudio
   SherpaOnnxDestroyOfflineSpeechDenoiser
+  SherpaOnnxFreeWave
   SherpaOnnxOfflineSpeechDenoiserGetSampleRate
   SherpaOnnxOfflineSpeechDenoiserRun
-  SherpaOnnxDestroyDenoisedAudio
-  SherpaOnnxWriteWave
   SherpaOnnxReadWave
   SherpaOnnxReadWaveFromBinaryData
-  SherpaOnnxFreeWave
+  SherpaOnnxWriteWave
 )
 set(mangled_exported_functions)
 foreach(x IN LISTS exported_functions)