Support VAD+ASR for WearOS (#2404)

@@ -31,6 +31,7 @@ jobs:
           git config --global user.name "Fangjun Kuang"
           git config --global user.name "Fangjun Kuang"
 
 
       - name: FireRed ASR fp16
       - name: FireRed ASR fp16
+        if: false
         shell: bash
         shell: bash
         env:
         env:
           HF_TOKEN: ${{ secrets.HF_TOKEN }}
           HF_TOKEN: ${{ secrets.HF_TOKEN }}
@@ -64,17 +65,37 @@ jobs:
       - name: Zipformer CTC (non-streaming)
       - name: Zipformer CTC (non-streaming)
         if: false
         if: false
         shell: bash
         shell: bash
+        env:
+          MS_TOKEN: ${{ secrets.MODEL_SCOPE_GIT_TOKEN }}
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
         run: |
         run: |
           git lfs install
           git lfs install
           names=(
           names=(
             sherpa-onnx-zipformer-ctc-zh-int8-2025-07-03
             sherpa-onnx-zipformer-ctc-zh-int8-2025-07-03
             sherpa-onnx-zipformer-ctc-zh-2025-07-03
             sherpa-onnx-zipformer-ctc-zh-2025-07-03
             sherpa-onnx-zipformer-ctc-zh-fp16-2025-07-03
             sherpa-onnx-zipformer-ctc-zh-fp16-2025-07-03
+            sherpa-onnx-zipformer-ctc-small-zh-int8-2025-07-16
+            sherpa-onnx-zipformer-ctc-small-zh-fp16-2025-07-16
+            sherpa-onnx-zipformer-ctc-small-zh-2025-07-16
           )
           )
           for name in ${names[@]}; do
           for name in ${names[@]}; do
-            git clone https://huggingface.co/csukuangfj/$name 
+            rm -rf ms
+            git clone https://oauth2:${MS_TOKEN}@www.modelscope.cn/csukuangfj/$name.git ms
+            git clone https://huggingface.co/csukuangfj/$name
+
+            cp -av ms/test_wavs $name
+            cp -v ms/*.onnx $name
+            cp -v ms/tokens.txt $name
+            cp -v ms/bbpe.model $name
+
             pushd $name
             pushd $name
-            git lfs pull
+            git lfs track "*.wav" "*.onnx" "*.model"
+            git add .
+            git status
+            git commit -m 'add models' || true
+            git push https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/$name main || true
+
+            # git lfs pull
             rm -rf .git
             rm -rf .git
             rm -rfv .gitattributes
             rm -rfv .gitattributes
             ls -lh
             ls -lh

@@ -19,3 +19,4 @@ for usage.
 |[SherpaOnnxAudioTagging](./SherpaOnnxAudioTagging)|[URL](https://k2-fsa.github.io/sherpa/onnx/audio-tagging/apk.html)| It shows how to use audio tagging.|
 |[SherpaOnnxAudioTagging](./SherpaOnnxAudioTagging)|[URL](https://k2-fsa.github.io/sherpa/onnx/audio-tagging/apk.html)| It shows how to use audio tagging.|
 |[SherpaOnnxAudioTaggingWearOS](./SherpaOnnxAudioTagging)|[URL](https://k2-fsa.github.io/sherpa/onnx/audio-tagging/apk-wearos.html)| It shows how to use audio tagging on WearOS.|
 |[SherpaOnnxAudioTaggingWearOS](./SherpaOnnxAudioTagging)|[URL](https://k2-fsa.github.io/sherpa/onnx/audio-tagging/apk-wearos.html)| It shows how to use audio tagging on WearOS.|
 |[SherpaOnnxSimulateStreamingAsr](./SherpaOnnxSimulateStreamingAsr)|| It shows how to use a non-streaming ASR model for streaming speech recognition.|
 |[SherpaOnnxSimulateStreamingAsr](./SherpaOnnxSimulateStreamingAsr)|| It shows how to use a non-streaming ASR model for streaming speech recognition.|
+|[SherpaOnnxSimulateStreamingAsrWearOs](./SherpaOnnxSimulateStreamingAsrWearOs)|| It shows how to use a non-streaming ASR model for streaming speech recognition with WearOS.|

+*.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

+/build

+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.jetbrains.kotlin.android)
+}
+
+android {
+    namespace = "com.k2fsa.sherpa.onnx.simulate.streaming.asr.wear.os"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.k2fsa.sherpa.onnx.simulate.streaming.asr.wear.os"
+        minSdk = 28
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+        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.play.services.wearable)
+    implementation(platform(libs.compose.bom))
+    implementation(libs.ui)
+    implementation(libs.ui.tooling.preview)
+    implementation(libs.compose.material)
+    implementation(libs.compose.foundation)
+    implementation(libs.activity.compose)
+    implementation(libs.core.splashscreen)
+    implementation("com.github.k2-fsa:sherpa-onnx:v1.12.6")
+    androidTestImplementation(platform(libs.compose.bom))
+    androidTestImplementation(libs.ui.test.junit4)
+    debugImplementation(libs.ui.tooling)
+    debugImplementation(libs.ui.test.manifest)
+}

+<?xml version="1.0" encoding="UTF-8"?>
+<lint>
+    <!-- Ignore the IconLocation for the Tile preview images -->
+    <issue id="IconLocation">
+        <ignore path="res/drawable/tile_preview.png" />
+        <ignore path="res/drawable-round/tile_preview.png" />
+    </issue>
+</lint>

+# 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

+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+
+    <uses-feature android:name="android.hardware.type.watch" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@android:style/Theme.DeviceDefault">
+        <uses-library
+            android:name="com.google.android.wearable"
+            android:required="true" />
+
+        <!--
+               Set to true if your app is Standalone, that is, it does not require the handheld
+               app to run.
+        -->
+        <meta-data
+            android:name="com.google.android.wearable.standalone"
+            android:value="true" />
+
+        <activity
+            android:name=".presentation.MainActivity"
+            android:exported="true"
+            android:taskAffinity=""
+            android:theme="@style/MainActivityTheme.Starting">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

+package com.k2fsa.sherpa.onnx.simulate.streaming.asr.wear.os.presentation
+
+import android.Manifest
+import android.app.Activity
+import android.content.pm.PackageManager
+import android.media.AudioFormat
+import android.media.AudioRecord
+import android.media.MediaRecorder
+import android.util.Log
+import androidx.compose.foundation.background
+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.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.core.app.ActivityCompat
+import androidx.wear.compose.material.Button
+import androidx.wear.compose.material.MaterialTheme
+import androidx.wear.compose.material.Text
+import com.k2fsa.sherpa.onnx.simulate.streaming.asr.wear.os.presentation.theme.SherpaOnnxSimulateStreamingAsrWearOsTheme
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.launch
+
+
+private var audioRecord: AudioRecord? = null
+
+private const val sampleRateInHz = 16000
+private var samplesChannel = Channel<FloatArray>(capacity = Channel.UNLIMITED)
+
+@Composable
+fun HomeScreen() {
+    val activity = LocalContext.current as Activity
+
+    var firstTime by remember { mutableStateOf(true) }
+    var isStarted by remember { mutableStateOf(false) }
+    var result by remember { mutableStateOf("") }
+
+    val coroutineScope = rememberCoroutineScope()
+
+    val onButtonClick: () -> Unit = {
+        firstTime = false
+        isStarted = !isStarted
+
+
+        if (isStarted) {
+            if (ActivityCompat.checkSelfPermission(
+                    activity, Manifest.permission.RECORD_AUDIO
+                ) != PackageManager.PERMISSION_GRANTED
+            ) {
+                Log.i(TAG, "Recording is not allowed")
+            } else {
+                // recording is allowed
+                val audioSource = MediaRecorder.AudioSource.MIC
+                val channelConfig = AudioFormat.CHANNEL_IN_MONO
+                val audioFormat = AudioFormat.ENCODING_PCM_16BIT
+                val numBytes =
+                    AudioRecord.getMinBufferSize(sampleRateInHz, channelConfig, audioFormat)
+
+                audioRecord = AudioRecord(
+                    audioSource,
+                    sampleRateInHz,
+                    AudioFormat.CHANNEL_IN_MONO,
+                    AudioFormat.ENCODING_PCM_16BIT,
+                    numBytes * 2 // a sample has two bytes as we are using 16-bit PCM
+                )
+
+                SimulateStreamingAsr.vad.reset()
+
+                result = "Started! Please speak"
+
+                CoroutineScope(Dispatchers.IO).launch {
+                    Log.i(TAG, "processing samples")
+                    val interval = 0.2 // i.e., 200 ms
+                    val bufferSize = (interval * sampleRateInHz).toInt() // in samples
+                    val buffer = ShortArray(bufferSize)
+
+                    audioRecord?.let { it ->
+                        it.startRecording()
+
+                        while (isStarted) {
+                            val ret = audioRecord?.read(buffer, 0, buffer.size)
+                            ret?.let { n ->
+                                val samples = FloatArray(n) { buffer[it] / 32768.0f }
+                                samplesChannel.send(samples)
+                            }
+                        }
+                        val samples = FloatArray(0)
+                        samplesChannel.send(samples)
+                    }
+                }
+
+                CoroutineScope(Dispatchers.Default).launch {
+                    var buffer = arrayListOf<Float>()
+                    var offset = 0
+                    val windowSize = 512 // change it for ten-vad
+
+                    while (isStarted) {
+                        for (s in samplesChannel) {
+                            if (s.isEmpty()) {
+                                break
+                            }
+
+                            buffer.addAll(s.toList())
+                            while (offset + windowSize < buffer.size) {
+                                SimulateStreamingAsr.vad.acceptWaveform(
+                                    buffer.subList(
+                                        offset, offset + windowSize
+                                    ).toFloatArray()
+                                )
+
+                                offset += windowSize
+                            }
+
+                            while (!SimulateStreamingAsr.vad.empty()) {
+                                val duration = SimulateStreamingAsr.vad.front().samples.count().toFloat() / 16000
+
+                                val s0 = System.currentTimeMillis()
+                                val stream = SimulateStreamingAsr.recognizer.createStream()
+                                stream.acceptWaveform(
+                                    SimulateStreamingAsr.vad.front().samples,
+                                    sampleRateInHz
+                                )
+                                SimulateStreamingAsr.recognizer.decode(stream)
+
+                                val s1 = System.currentTimeMillis()
+                                val diff = (s1 - s0).toFloat() / 1000
+                                val rtf = diff / duration
+                                Log.i(TAG, "rtf: ${rtf}, elapsed: ${diff}, duration: ${duration}")
+                                val r = SimulateStreamingAsr.recognizer.getResult(stream)
+                                stream.release()
+
+                                Log.i(TAG, "result: ${r.text}")
+
+                                coroutineScope.launch {
+                                    result = r.text
+                                }
+
+                                SimulateStreamingAsr.vad.pop()
+                                buffer = arrayListOf()
+                                offset = 0
+                            }
+                        }
+                    }
+                }
+            }
+        } else {
+            audioRecord?.stop()
+            audioRecord?.release()
+            audioRecord = null
+
+            result = "Click Start and speak"
+        }
+    }
+
+    SherpaOnnxSimulateStreamingAsrWearOsTheme {
+        Box(
+            modifier = Modifier
+                .fillMaxSize()
+                .background(MaterialTheme.colors.background),
+            contentAlignment = Alignment.Center
+        ) {
+            Column(
+                horizontalAlignment = Alignment.CenterHorizontally
+            ) {
+                Spacer(modifier = Modifier.height(16.dp))
+                if (firstTime) {
+                    ShowMessage()
+                } else {
+                    ShowResult(result)
+                }
+
+                Spacer(modifier = Modifier.height(32.dp))
+
+                Button(
+                    onClick = onButtonClick
+                ) {
+                    if (isStarted) {
+                        Text("Stop")
+                    } else {
+                        Text("Start")
+                    }
+                }
+            }
+        }
+    }
+
+}
+
+@Composable
+fun ShowMessage() {
+    val msg = "Real-time\nspeech recognition\nwith\nNext-gen Kaldi"
+    Text(
+        modifier = Modifier.fillMaxWidth(),
+        textAlign = TextAlign.Center,
+        color = MaterialTheme.colors.primary,
+        text = msg,
+    )
+}
+
+@Composable
+fun ShowResult(result: String) {
+    var msg: String = result
+    if (msg.length > 10) {
+        val n = 5
+        val first = result.take(n)
+        val last = result.takeLast(result.length - n)
+        msg = "${first}\n${last}"
+    }
+    Text(
+        modifier = Modifier.fillMaxWidth(),
+        textAlign = TextAlign.Center,
+        color = MaterialTheme.colors.primary,
+        text = msg,
+    )
+}

+/* While this template provides a good starting point for using Wear Compose, you can always
+ * take a look at https://github.com/android/wear-os-samples/tree/main/ComposeStarter and
+ * https://github.com/android/wear-os-samples/tree/main/ComposeAdvanced to find the most up to date
+ * changes to the libraries and their usages.
+ */
+
+package com.k2fsa.sherpa.onnx.simulate.streaming.asr.wear.os.presentation
+
+import android.Manifest
+import android.content.pm.PackageManager
+import android.os.Bundle
+import android.util.Log
+import android.widget.Toast
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.tooling.preview.Devices
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.core.app.ActivityCompat
+import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
+import androidx.wear.compose.material.MaterialTheme
+import androidx.wear.compose.material.Text
+import androidx.wear.compose.material.TimeText
+import com.k2fsa.sherpa.onnx.simulate.streaming.asr.wear.os.R
+import com.k2fsa.sherpa.onnx.simulate.streaming.asr.wear.os.presentation.theme.SherpaOnnxSimulateStreamingAsrWearOsTheme
+
+const val TAG = "sherpa-onnx"
+private const val REQUEST_RECORD_AUDIO_PERMISSION = 200
+
+class MainActivity : ComponentActivity() {
+    private val permissions: Array<String> = arrayOf(Manifest.permission.RECORD_AUDIO)
+    override fun onCreate(savedInstanceState: Bundle?) {
+        installSplashScreen()
+
+        super.onCreate(savedInstanceState)
+
+        setTheme(android.R.style.Theme_DeviceDefault)
+
+        setContent {
+            WearApp("Android")
+        }
+
+        ActivityCompat.requestPermissions(this, permissions, REQUEST_RECORD_AUDIO_PERMISSION)
+        SimulateStreamingAsr.initOfflineRecognizer(this.assets, this.application)
+        SimulateStreamingAsr.initVad(this.assets)
+    }
+
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<out String>,
+        grantResults: IntArray
+    ) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+
+        val permissionToRecordAccepted = if (requestCode == REQUEST_RECORD_AUDIO_PERMISSION) {
+            grantResults[0] == PackageManager.PERMISSION_GRANTED
+        } else {
+            false
+        }
+
+        if (!permissionToRecordAccepted) {
+            Log.e(TAG, "Audio record is disallowed")
+            Toast.makeText(
+                this,
+                "This App needs access to the microphone",
+                Toast.LENGTH_SHORT
+            )
+                .show()
+            finish()
+        }
+        Log.i(TAG, "Audio record is permitted")
+    }
+}
+
+@Composable
+fun WearApp(greetingName: String) {
+    HomeScreen()
+}
+
+@Composable
+fun Greeting(greetingName: String) {
+    Text(
+        modifier = Modifier.fillMaxWidth(),
+        textAlign = TextAlign.Center,
+        color = MaterialTheme.colors.primary,
+        text = stringResource(R.string.hello_world, greetingName)
+    )
+}

+package com.k2fsa.sherpa.onnx.simulate.streaming.asr.wear.os.presentation
+
+import android.app.Application
+import android.content.res.AssetManager
+import android.util.Log
+import com.k2fsa.sherpa.onnx.HomophoneReplacerConfig
+import com.k2fsa.sherpa.onnx.OfflineRecognizer
+import com.k2fsa.sherpa.onnx.OfflineRecognizerConfig
+import com.k2fsa.sherpa.onnx.Vad
+import com.k2fsa.sherpa.onnx.getOfflineModelConfig
+import com.k2fsa.sherpa.onnx.getVadModelConfig
+import java.io.File
+import java.io.FileOutputStream
+import java.io.IOException
+
+
+object SimulateStreamingAsr {
+    private var _recognizer: OfflineRecognizer? = null
+    val recognizer: OfflineRecognizer
+        get() {
+            return _recognizer!!
+        }
+
+    private var _vad: Vad? = null
+    val vad: Vad
+        get() {
+            return _vad!!
+        }
+
+    fun initOfflineRecognizer(assetManager: AssetManager? = null, application: Application) {
+        synchronized(this) {
+            if (_recognizer != null) {
+                return
+            }
+            Log.i(TAG, "Initializing sherpa-onnx offline recognizer")
+            // Please change getOfflineModelConfig() to add new models
+            // See https://k2-fsa.github.io/sherpa/onnx/pretrained_models/index.html
+            // for a list of available models
+            val asrModelType = 39
+            val asrRuleFsts: String?
+            asrRuleFsts = null
+            Log.i(TAG, "Select model type $asrModelType for ASR")
+
+            val useHr = false
+            val hr = HomophoneReplacerConfig(
+                // Used only when useHr is true
+                // Please download the following 3 files from
+                // https://github.com/k2-fsa/sherpa-onnx/releases/tag/hr-files
+                //
+                // dict and lexicon.txt can be shared by different apps
+                //
+                // replace.fst is specific for an app
+                dictDir = "dict",
+                lexicon = "lexicon.txt",
+                ruleFsts = "replace.fst",
+            )
+
+            val config = OfflineRecognizerConfig(
+                modelConfig = getOfflineModelConfig(type = asrModelType)!!,
+            )
+
+            if (config.modelConfig.numThreads == 1) {
+                config.modelConfig.numThreads = 2
+            }
+            config.modelConfig.debug = true
+
+            if (asrRuleFsts != null) {
+                config.ruleFsts = asrRuleFsts
+            }
+
+            if (useHr) {
+                if (hr.dictDir.isNotEmpty() && hr.dictDir.first() != '/') {
+                    // We need to copy it from the assets directory to some path
+                    val newDir = copyDataDir(hr.dictDir, application)
+                    hr.dictDir = "$newDir/${hr.dictDir}"
+                }
+                config.hr = hr
+            }
+
+            _recognizer = OfflineRecognizer(
+                assetManager = assetManager,
+                config = config,
+            )
+
+            Log.i(TAG, "sherpa-onnx offline recognizer initialized")
+        }
+    }
+
+    fun initVad(assetManager: AssetManager? = null) {
+        if (_vad != null) {
+            return
+        }
+        val type = 0
+        Log.i(TAG, "Select VAD model type $type")
+        val config = getVadModelConfig(type)
+
+        _vad = Vad(
+            assetManager = assetManager,
+            config = config!!,
+        )
+        Log.i(TAG, "sherpa-onnx vad initialized")
+    }
+
+    private fun copyDataDir(dataDir: String, application: Application): String {
+        Log.i(TAG, "data dir is $dataDir")
+        copyAssets(dataDir, application)
+
+        val newDataDir = application.getExternalFilesDir(null)!!.absolutePath
+        Log.i(TAG, "newDataDir: $newDataDir")
+        return newDataDir
+    }
+
+    private fun copyAssets(path: String, application: Application) {
+        val assets: Array<String>?
+        try {
+            assets = application.assets.list(path)
+            if (assets!!.isEmpty()) {
+                copyFile(path, application)
+            } else {
+                val fullPath = "${application.getExternalFilesDir(null)}/$path"
+                val dir = File(fullPath)
+                dir.mkdirs()
+                for (asset in assets.iterator()) {
+                    val p: String = if (path == "") "" else "$path/"
+                    copyAssets(p + asset, application)
+                }
+            }
+        } catch (ex: IOException) {
+            Log.e(TAG, "Failed to copy $path. $ex")
+        }
+    }
+
+    private fun copyFile(filename: String, application: Application) {
+        try {
+            val istream = application.assets.open(filename)
+            val newFilename = application.getExternalFilesDir(null).toString() + "/" + filename
+            val ostream = FileOutputStream(newFilename)
+            // Log.i(TAG, "Copying $filename to $newFilename")
+            val buffer = ByteArray(1024)
+            var read = 0
+            while (read != -1) {
+                ostream.write(buffer, 0, read)
+                read = istream.read(buffer)
+            }
+            istream.close()
+            ostream.flush()
+            ostream.close()
+        } catch (ex: Exception) {
+            Log.e(TAG, "Failed to copy $filename, $ex")
+        }
+    }
+}

+package com.k2fsa.sherpa.onnx.simulate.streaming.asr.wear.os.presentation.theme
+
+import androidx.compose.runtime.Composable
+import androidx.wear.compose.material.MaterialTheme
+
+@Composable
+fun SherpaOnnxSimulateStreamingAsrWearOsTheme(
+    content: @Composable () -> Unit
+) {
+    /**
+     * Empty theme to customize for your app.
+     * See: https://developer.android.com/jetpack/compose/designsystems/custom
+     */
+    MaterialTheme(
+        content = content
+    )
+}

+<?xml version="1.0" encoding="utf-8"?>
+
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:width="48dp"
+        android:height="48dp"
+        android:gravity="center">
+        <shape android:shape="oval">
+            <solid android:color="#FFFFFF" />
+        </shape>
+    </item>
+    <item
+        android:width="40dp"
+        android:height="40dp"
+        android:gravity="center">
+        <vector
+            android:width="24dp"
+            android:height="24dp"
+            android:tint="#000000"
+            android:viewportWidth="24"
+            android:viewportHeight="24">
+            <path
+                android:fillColor="#FF000000"
+                android:pathData="M17.6,11.48 L19.44,8.3a0.63,0.63 0,0 0,-1.09 -0.63l-1.88,3.24a11.43,11.43 0,0 0,-8.94 0L5.65,7.67a0.63,0.63 0,0 0,-1.09 0.63L6.4,11.48A10.81,10.81 0,0 0,1 20L23,20A10.81,10.81 0,0 0,17.6 11.48ZM7,17.25A1.25,1.25 0,1 1,8.25 16,1.25 1.25,0 0,1 7,17.25ZM17,17.25A1.25,1.25 0,1 1,18.25 16,1.25 1.25,0 0,1 17,17.25Z" />
+        </vector>
+    </item>
+</layer-list>

+<resources>
+    <string name="hello_world">From the Round world,\nHello, %1$s!</string>
+</resources>

+<resources>
+    <string name="app_name">SherpaOnnxSimulateStreamingAsrWearOs</string>
+    <!--
+    This string is used for square devices and overridden by hello_world in
+    values-round/strings.xml for round devices.
+    -->
+    <string name="hello_world">From the Square world,\nHello, %1$s!</string>
+</resources>

+<resources>
+
+    <style name="MainActivityTheme.Starting" parent="Theme.SplashScreen">
+        <item name="windowSplashScreenBackground">@android:color/black</item>
+        <item name="windowSplashScreenAnimatedIcon">@drawable/splash_icon</item>
+        <item name="postSplashScreenTheme">@android:style/Theme.DeviceDefault</item>
+    </style>
+</resources>

+// 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
+}

+# 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

+[versions]
+agp = "8.4.0"
+kotlin = "1.9.0"
+playServicesWearable = "18.0.0"
+composeBom = "2023.08.00"
+composeMaterial = "1.2.1"
+composeFoundation = "1.2.1"
+activityCompose = "1.7.2"
+coreSplashscreen = "1.0.1"
+
+[libraries]
+play-services-wearable = { group = "com.google.android.gms", name = "play-services-wearable", version.ref = "playServicesWearable" }
+compose-bom = { group = "androidx.compose", name = "compose-bom", version.ref = "composeBom" }
+ui = { group = "androidx.compose.ui", name = "ui" }
+ui-tooling-preview = { group = "androidx.compose.ui", name = "ui-tooling-preview" }
+ui-tooling = { group = "androidx.compose.ui", name = "ui-tooling" }
+ui-test-manifest = { group = "androidx.compose.ui", name = "ui-test-manifest" }
+ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit4" }
+compose-material = { group = "androidx.wear.compose", name = "compose-material", version.ref = "composeMaterial" }
+compose-foundation = { group = "androidx.wear.compose", name = "compose-foundation", version.ref = "composeFoundation" }
+activity-compose = { group = "androidx.activity", name = "activity-compose", version.ref = "activityCompose" }
+core-splashscreen = { group = "androidx.core", name = "core-splashscreen", version.ref = "coreSplashscreen" }
+
+[plugins]
+android-application = { id = "com.android.application", version.ref = "agp" }
+jetbrains-kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
+

+#Tue Jul 15 18:18:24 CST 2025
+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

+#!/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 "$JAVACMD" "$@"

+@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

+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()
+        maven { url = uri("https://jitpack.io") }
+    }
+}
+
+rootProject.name = "SherpaOnnxSimulateStreamingAsrWearOs"
+include(":app")

@@ -664,6 +664,23 @@ def get_models():
             popd
             popd
             """,
             """,
         ),
         ),
+        Model(
+            model_name="sherpa-onnx-zipformer-ctc-small-zh-int8-2025-07-16",
+            idx=39,
+            lang="zh",
+            lang2="Chinese",
+            short_name="zipformer_ctc_small_2025_07_16",
+            cmd="""
+            pushd $model_name
+
+            rm -rfv test_wavs
+            rm -rfv bbpe.model
+
+            ls -lh
+
+            popd
+            """,
+        ),
     ]
     ]
     return models
     return models
 
 

@@ -667,6 +667,16 @@ fun getOfflineModelConfig(type: Int): OfflineModelConfig? {
                 tokens = "$modelDir/tokens.txt",
                 tokens = "$modelDir/tokens.txt",
             )
             )
         }
         }
+
+        39 -> {
+            val modelDir = "sherpa-onnx-zipformer-ctc-small-zh-int8-2025-07-16"
+            return OfflineModelConfig(
+                zipformerCtc = OfflineZipformerCtcModelConfig(
+                    model = "$modelDir/model.int8.onnx",
+                ),
+                tokens = "$modelDir/tokens.txt",
+            )
+        }
     }
     }
     return null
     return null
 }
 }