diff --git a/.github/workflows/aarch64-linux-gnu.yaml b/.github/workflows/aarch64-linux-gnu.yaml
index 1a42e6100..d50d70e78 100644
--- a/.github/workflows/aarch64-linux-gnu.yaml
+++ b/.github/workflows/aarch64-linux-gnu.yaml
@@ -22,9 +22,6 @@ on:
- 'cmake/**'
- 'sherpa-onnx/csrc/*'
- 'toolchains/aarch64-linux-gnu.toolchain.cmake'
- release:
- types:
- - published
workflow_dispatch:
inputs:
diff --git a/.github/workflows/build-xcframework.yaml b/.github/workflows/build-xcframework.yaml
index 8c2ffaa09..785d94d61 100644
--- a/.github/workflows/build-xcframework.yaml
+++ b/.github/workflows/build-xcframework.yaml
@@ -9,9 +9,6 @@ on:
- './build-ios.sh'
tags:
- '*'
- release:
- types:
- - published
workflow_dispatch:
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5c0a7c19b..c477d3232 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
cmake_minimum_required(VERSION 3.13 FATAL_ERROR)
project(sherpa-onnx)
-set(SHERPA_ONNX_VERSION "1.7.19")
+set(SHERPA_ONNX_VERSION "1.7.20")
# Disable warning about
#
diff --git a/android/.gitignore b/android/.gitignore
new file mode 100644
index 000000000..76f257c55
--- /dev/null
+++ b/android/.gitignore
@@ -0,0 +1,34 @@
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Log/OS Files
+*.log
+
+# Android Studio generated files and folders
+captures/
+.externalNativeBuild/
+.cxx/
+*.apk
+output.json
+
+# IntelliJ
+*.iml
+.idea/
+misc.xml
+deploymentTargetDropDown.xml
+render.experimental.xml
+
+# Keystore files
+*.jks
+*.keystore
+
+# Google Services (e.g. APIs or Firebase)
+google-services.json
+
+# Android Profiling
+*.hprof
+*.so
diff --git a/android/README.md b/android/README.md
index 4e6e3c99c..16489dbea 100644
--- a/android/README.md
+++ b/android/README.md
@@ -3,3 +3,13 @@
Please refer to
https://k2-fsa.github.io/sherpa/onnx/android/index.html
for usage.
+
+- [SherpaOnnx](./SherpaOnnx) It uses a streaming ASR model.
+
+- [SherpaOnnx2Pass](./SherpaOnnx2Pass) It uses a streaming ASR model
+ for the first pass and use a non-streaming ASR model for the second pass.
+
+- [SherpaOnnxVad](./SherpaOnnxVad) It demonstrates how to use a VAD
+
+- [SherpaOnnxVadAsr](./SherpaOnnxVadAsr) It uses a VAD with a non-streaming
+ ASR model.
diff --git a/android/SherpaOnnx2Pass/app/src/main/java/com/k2fsa/sherpa/onnx/SherpaOnnx.kt b/android/SherpaOnnx2Pass/app/src/main/java/com/k2fsa/sherpa/onnx/SherpaOnnx.kt
index 99ca65827..9198d7dc0 100644
--- a/android/SherpaOnnx2Pass/app/src/main/java/com/k2fsa/sherpa/onnx/SherpaOnnx.kt
+++ b/android/SherpaOnnx2Pass/app/src/main/java/com/k2fsa/sherpa/onnx/SherpaOnnx.kt
@@ -53,6 +53,8 @@ data class OnlineRecognizerConfig(
var enableEndpoint: Boolean = true,
var decodingMethod: String = "greedy_search",
var maxActivePaths: Int = 4,
+ var hotwordsFile: String = "",
+ var hotwordsScore: Float = 1.5f,
)
data class OfflineTransducerModelConfig(
@@ -87,6 +89,8 @@ data class OfflineRecognizerConfig(
// var lmConfig: OfflineLMConfig(), // TODO(fangjun): enable it
var decodingMethod: String = "greedy_search",
var maxActivePaths: Int = 4,
+ var hotwordsFile: String = "",
+ var hotwordsScore: Float = 1.5f,
)
class SherpaOnnx(
@@ -370,6 +374,19 @@ fun getOfflineModelConfig(type: Int): OfflineModelConfig? {
)
}
+ 5 -> {
+ val modelDir = "sherpa-onnx-zipformer-multi-zh-hans-2023-9-2"
+ return OfflineModelConfig(
+ transducer = OfflineTransducerModelConfig(
+ encoder = "$modelDir/encoder-epoch-20-avg-1.int8.onnx",
+ decoder = "$modelDir/decoder-epoch-20-avg-1.onnx",
+ joiner = "$modelDir/joiner-epoch-20-avg-1.int8.onnx",
+ ),
+ tokens = "$modelDir/tokens.txt",
+ modelType = "zipformer2",
+ )
+ }
+
}
return null
}
diff --git a/android/SherpaOnnxVadAsr/.gitignore b/android/SherpaOnnxVadAsr/.gitignore
new file mode 100644
index 000000000..aa724b770
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/.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
diff --git a/android/SherpaOnnxVadAsr/app/.gitignore b/android/SherpaOnnxVadAsr/app/.gitignore
new file mode 100644
index 000000000..42afabfd2
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/build.gradle b/android/SherpaOnnxVadAsr/app/build.gradle
new file mode 100644
index 000000000..c9b51a6fd
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/build.gradle
@@ -0,0 +1,44 @@
+plugins {
+ id 'com.android.application'
+ id 'org.jetbrains.kotlin.android'
+}
+
+android {
+ namespace 'com.k2fsa.sherpa.onnx'
+ compileSdk 33
+
+ defaultConfig {
+ applicationId "com.k2fsa.sherpa.onnx"
+ minSdk 21
+ targetSdk 33
+ versionCode 1
+ versionName "1.0"
+
+ testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+ }
+
+ buildTypes {
+ release {
+ minifyEnabled 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'
+ }
+}
+
+dependencies {
+
+ implementation 'androidx.core:core-ktx:1.7.0'
+ implementation 'androidx.appcompat:appcompat:1.6.1'
+ implementation 'com.google.android.material:material:1.9.0'
+ implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+ testImplementation 'junit:junit:4.13.2'
+ androidTestImplementation 'androidx.test.ext:junit:1.1.5'
+ androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+}
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/proguard-rules.pro b/android/SherpaOnnxVadAsr/app/proguard-rules.pro
new file mode 100644
index 000000000..481bb4348
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/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
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/androidTest/java/com/k2fsa/sherpa/onnx/ExampleInstrumentedTest.kt b/android/SherpaOnnxVadAsr/app/src/androidTest/java/com/k2fsa/sherpa/onnx/ExampleInstrumentedTest.kt
new file mode 100644
index 000000000..183383202
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/androidTest/java/com/k2fsa/sherpa/onnx/ExampleInstrumentedTest.kt
@@ -0,0 +1,24 @@
+package com.k2fsa.sherpa.onnx
+
+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", appContext.packageName)
+ }
+}
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/AndroidManifest.xml b/android/SherpaOnnxVadAsr/app/src/main/AndroidManifest.xml
new file mode 100644
index 000000000..986a17d50
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/AndroidManifest.xml
@@ -0,0 +1,32 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/assets/.gitignore b/android/SherpaOnnxVadAsr/app/src/main/assets/.gitignore
new file mode 100644
index 000000000..e1a699ac3
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/assets/.gitignore
@@ -0,0 +1 @@
+*.onnx
diff --git a/android/SherpaOnnxVadAsr/app/src/main/java/com/k2fsa/sherpa/onnx/MainActivity.kt b/android/SherpaOnnxVadAsr/app/src/main/java/com/k2fsa/sherpa/onnx/MainActivity.kt
new file mode 100644
index 000000000..6668bb37d
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/java/com/k2fsa/sherpa/onnx/MainActivity.kt
@@ -0,0 +1,213 @@
+package com.k2fsa.sherpa.onnx
+
+import android.Manifest
+import android.content.pm.PackageManager
+import android.media.AudioFormat
+import android.media.AudioRecord
+import android.media.MediaRecorder
+import android.os.Bundle
+import android.text.method.ScrollingMovementMethod
+import android.util.Log
+import android.view.View
+import android.widget.Button
+import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.app.ActivityCompat
+import kotlin.concurrent.thread
+
+
+private const val TAG = "sherpa-onnx"
+private const val REQUEST_RECORD_AUDIO_PERMISSION = 200
+
+class MainActivity : AppCompatActivity() {
+
+ private lateinit var recordButton: Button
+ private lateinit var textView: TextView
+
+ private lateinit var vad: Vad
+
+ private var audioRecord: AudioRecord? = null
+ private var recordingThread: Thread? = null
+ private val audioSource = MediaRecorder.AudioSource.MIC
+ private val sampleRateInHz = 16000
+ private val channelConfig = AudioFormat.CHANNEL_IN_MONO
+
+ // Note: We don't use AudioFormat.ENCODING_PCM_FLOAT
+ // since the AudioRecord.read(float[]) needs API level >= 23
+ // but we are targeting API level >= 21
+ private val audioFormat = AudioFormat.ENCODING_PCM_16BIT
+
+ private val permissions: Array = arrayOf(Manifest.permission.RECORD_AUDIO)
+
+ // Non-streaming ASR
+ private lateinit var offlineRecognizer: SherpaOnnxOffline
+
+ private var idx: Int = 0
+ private var lastText: String = ""
+
+ @Volatile
+ private var isRecording: Boolean = false
+
+ override fun onRequestPermissionsResult(
+ requestCode: Int, permissions: Array, 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")
+ finish()
+ }
+
+ Log.i(TAG, "Audio record is permitted")
+ }
+
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+ setContentView(R.layout.activity_main)
+
+ ActivityCompat.requestPermissions(this, permissions, REQUEST_RECORD_AUDIO_PERMISSION)
+
+ Log.i(TAG, "Start to initialize model")
+ initVadModel()
+ Log.i(TAG, "Finished initializing model")
+
+ Log.i(TAG, "Start to initialize non-streaimng recognizer")
+ initOfflineRecognizer()
+ Log.i(TAG, "Finished initializing non-streaming recognizer")
+
+ recordButton = findViewById(R.id.record_button)
+ recordButton.setOnClickListener { onclick() }
+
+ textView = findViewById(R.id.my_text)
+ textView.movementMethod = ScrollingMovementMethod()
+ }
+
+ private fun onclick() {
+ if (!isRecording) {
+ val ret = initMicrophone()
+ if (!ret) {
+ Log.e(TAG, "Failed to initialize microphone")
+ return
+ }
+ Log.i(TAG, "state: ${audioRecord?.state}")
+ audioRecord!!.startRecording()
+ recordButton.setText(R.string.stop)
+ isRecording = true
+
+ textView.text = ""
+ lastText = ""
+ idx = 0
+
+ vad.reset()
+ recordingThread = thread(true) {
+ processSamples()
+ }
+ Log.i(TAG, "Started recording")
+ } else {
+ isRecording = false
+
+ audioRecord!!.stop()
+ audioRecord!!.release()
+ audioRecord = null
+
+ recordButton.setText(R.string.start)
+ Log.i(TAG, "Stopped recording")
+ }
+ }
+
+ private fun initVadModel() {
+ val type = 0
+ println("Select VAD model type ${type}")
+ val config = getVadModelConfig(type)
+
+ vad = Vad(
+ assetManager = application.assets,
+ config = config!!,
+ )
+ }
+
+ private fun initMicrophone(): Boolean {
+ if (ActivityCompat.checkSelfPermission(
+ this, Manifest.permission.RECORD_AUDIO
+ ) != PackageManager.PERMISSION_GRANTED
+ ) {
+ ActivityCompat.requestPermissions(this, permissions, REQUEST_RECORD_AUDIO_PERMISSION)
+ return false
+ }
+
+ val numBytes = AudioRecord.getMinBufferSize(sampleRateInHz, channelConfig, audioFormat)
+ Log.i(
+ TAG, "buffer size in milliseconds: ${numBytes * 1000.0f / sampleRateInHz}"
+ )
+
+ audioRecord = AudioRecord(
+ audioSource,
+ sampleRateInHz,
+ channelConfig,
+ audioFormat,
+ numBytes * 2 // a sample has two bytes as we are using 16-bit PCM
+ )
+ return true
+ }
+
+ private fun processSamples() {
+ Log.i(TAG, "processing samples")
+
+ val bufferSize = 512 // in samples
+ val buffer = ShortArray(bufferSize)
+
+ while (isRecording) {
+ val ret = audioRecord?.read(buffer, 0, buffer.size)
+ if (ret != null && ret > 0) {
+ val samples = FloatArray(ret) { buffer[it] / 32768.0f }
+
+ vad.acceptWaveform(samples)
+ while(!vad.empty()) {
+ var objArray = vad.front()
+ val samples = objArray[1] as FloatArray
+ val text = runSecondPass(samples)
+
+ if (text.isNotBlank()) {
+ lastText = "${lastText}\n${idx}: ${text}"
+ idx += 1
+ }
+
+ vad.pop();
+ }
+
+ val isSpeechDetected = vad.isSpeechDetected()
+
+ runOnUiThread {
+ textView.text = lastText.lowercase()
+ }
+ }
+ }
+ }
+
+ private fun initOfflineRecognizer() {
+ // 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 secondType = 0
+ println("Select model type ${secondType} for the second pass")
+
+ val config = OfflineRecognizerConfig(
+ featConfig = getFeatureConfig(sampleRate = sampleRateInHz, featureDim = 80),
+ modelConfig = getOfflineModelConfig(type = secondType)!!,
+ )
+
+ offlineRecognizer = SherpaOnnxOffline(
+ assetManager = application.assets,
+ config = config,
+ )
+ }
+
+ private fun runSecondPass(samples: FloatArray): String {
+ return offlineRecognizer.decode(samples, sampleRateInHz)
+ }
+}
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/java/com/k2fsa/sherpa/onnx/SherpaOnnx.kt b/android/SherpaOnnxVadAsr/app/src/main/java/com/k2fsa/sherpa/onnx/SherpaOnnx.kt
new file mode 120000
index 000000000..57ba3e85a
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/java/com/k2fsa/sherpa/onnx/SherpaOnnx.kt
@@ -0,0 +1 @@
+../../../../../../../../../SherpaOnnx2Pass/app/src/main/java/com/k2fsa/sherpa/onnx/SherpaOnnx.kt
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/java/com/k2fsa/sherpa/onnx/Vad.kt b/android/SherpaOnnxVadAsr/app/src/main/java/com/k2fsa/sherpa/onnx/Vad.kt
new file mode 120000
index 000000000..f430a1056
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/java/com/k2fsa/sherpa/onnx/Vad.kt
@@ -0,0 +1 @@
+../../../../../../../../../SherpaOnnxVad/app/src/main/java/com/k2fsa/sherpa/onnx/Vad.kt
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/jniLibs/arm64-v8a/.gitkeep b/android/SherpaOnnxVadAsr/app/src/main/jniLibs/arm64-v8a/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/android/SherpaOnnxVadAsr/app/src/main/jniLibs/armeabi-v7a/.gitkeep b/android/SherpaOnnxVadAsr/app/src/main/jniLibs/armeabi-v7a/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/android/SherpaOnnxVadAsr/app/src/main/jniLibs/x86/.gitkeep b/android/SherpaOnnxVadAsr/app/src/main/jniLibs/x86/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/android/SherpaOnnxVadAsr/app/src/main/jniLibs/x86_64/.gitkeep b/android/SherpaOnnxVadAsr/app/src/main/jniLibs/x86_64/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/android/SherpaOnnxVadAsr/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 000000000..2b068d114
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,30 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/drawable/ic_launcher_background.xml b/android/SherpaOnnxVadAsr/app/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 000000000..07d5da9cb
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,170 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/layout/activity_main.xml b/android/SherpaOnnxVadAsr/app/src/main/res/layout/activity_main.xml
new file mode 100644
index 000000000..f9b35e862
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/res/layout/activity_main.xml
@@ -0,0 +1,39 @@
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 000000000..eca70cfe5
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,5 @@
+
+
+
+
+
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 000000000..eca70cfe5
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,5 @@
+
+
+
+
+
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-hdpi/ic_launcher.webp b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-hdpi/ic_launcher.webp
new file mode 100644
index 000000000..c209e78ec
Binary files /dev/null and b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-hdpi/ic_launcher.webp differ
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
new file mode 100644
index 000000000..b2dfe3d1b
Binary files /dev/null and b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp differ
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-mdpi/ic_launcher.webp b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-mdpi/ic_launcher.webp
new file mode 100644
index 000000000..4f0f1d64e
Binary files /dev/null and b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-mdpi/ic_launcher.webp differ
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
new file mode 100644
index 000000000..62b611da0
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diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xhdpi/ic_launcher.webp b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
new file mode 100644
index 000000000..948a3070f
Binary files /dev/null and b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xhdpi/ic_launcher.webp differ
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
new file mode 100644
index 000000000..1b9a6956b
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diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
new file mode 100644
index 000000000..28d4b77f9
Binary files /dev/null and b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp differ
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
new file mode 100644
index 000000000..9287f5083
Binary files /dev/null and b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp differ
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
new file mode 100644
index 000000000..aa7d6427e
Binary files /dev/null and b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp differ
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
new file mode 100644
index 000000000..9126ae37c
Binary files /dev/null and b/android/SherpaOnnxVadAsr/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp differ
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/values-night/themes.xml b/android/SherpaOnnxVadAsr/app/src/main/res/values-night/themes.xml
new file mode 100644
index 000000000..ea319f732
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/res/values-night/themes.xml
@@ -0,0 +1,16 @@
+
+
+
+
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/values/colors.xml b/android/SherpaOnnxVadAsr/app/src/main/res/values/colors.xml
new file mode 100644
index 000000000..f8c6127d3
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/res/values/colors.xml
@@ -0,0 +1,10 @@
+
+
+ #FFBB86FC
+ #FF6200EE
+ #FF3700B3
+ #FF03DAC5
+ #FF018786
+ #FF000000
+ #FFFFFFFF
+
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/values/strings.xml b/android/SherpaOnnxVadAsr/app/src/main/res/values/strings.xml
new file mode 100644
index 000000000..ba9d880aa
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/res/values/strings.xml
@@ -0,0 +1,13 @@
+
+ ASR with Next-gen Kaldi
+ Click the Start button to play speech-to-text with Next-gen Kaldi.
+ \n
+ \n\n\n
+ The source code and pre-trained models are publicly available.
+ Please see https://github.com/k2-fsa/sherpa-onnx for details.
+ \n\n
+ Speech recognition with Next-gen Kaldi using VAD and non-streaming ASR models.
+
+ Start
+ Stop
+
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/values/themes.xml b/android/SherpaOnnxVadAsr/app/src/main/res/values/themes.xml
new file mode 100644
index 000000000..091af17b1
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/res/values/themes.xml
@@ -0,0 +1,16 @@
+
+
+
+
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/xml/backup_rules.xml b/android/SherpaOnnxVadAsr/app/src/main/res/xml/backup_rules.xml
new file mode 100644
index 000000000..fa0f996d2
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/res/xml/backup_rules.xml
@@ -0,0 +1,13 @@
+
+
+
+
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/main/res/xml/data_extraction_rules.xml b/android/SherpaOnnxVadAsr/app/src/main/res/xml/data_extraction_rules.xml
new file mode 100644
index 000000000..9ee9997b0
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/main/res/xml/data_extraction_rules.xml
@@ -0,0 +1,19 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/app/src/test/java/com/k2fsa/sherpa/onnx/ExampleUnitTest.kt b/android/SherpaOnnxVadAsr/app/src/test/java/com/k2fsa/sherpa/onnx/ExampleUnitTest.kt
new file mode 100644
index 000000000..05dfcd635
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/app/src/test/java/com/k2fsa/sherpa/onnx/ExampleUnitTest.kt
@@ -0,0 +1,17 @@
+package com.k2fsa.sherpa.onnx
+
+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)
+ }
+}
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/build.gradle b/android/SherpaOnnxVadAsr/build.gradle
new file mode 100644
index 000000000..253697423
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/build.gradle
@@ -0,0 +1,6 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+ id 'com.android.application' version '7.3.1' apply false
+ id 'com.android.library' version '7.3.1' apply false
+ id 'org.jetbrains.kotlin.android' version '1.7.20' apply false
+}
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/gradle.properties b/android/SherpaOnnxVadAsr/gradle.properties
new file mode 100644
index 000000000..3c5031eb7
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/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. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec: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
\ No newline at end of file
diff --git a/android/SherpaOnnxVadAsr/gradle/wrapper/gradle-wrapper.properties b/android/SherpaOnnxVadAsr/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 000000000..d740f8846
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Sat Sep 23 20:50:52 CST 2023
+distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-bin.zip
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
diff --git a/android/SherpaOnnxVadAsr/gradlew b/android/SherpaOnnxVadAsr/gradlew
new file mode 100755
index 000000000..4f906e0c8
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/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 "$JAVACMD" "$@"
diff --git a/android/SherpaOnnxVadAsr/gradlew.bat b/android/SherpaOnnxVadAsr/gradlew.bat
new file mode 100644
index 000000000..ac1b06f93
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/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
diff --git a/android/SherpaOnnxVadAsr/settings.gradle b/android/SherpaOnnxVadAsr/settings.gradle
new file mode 100644
index 000000000..b36c715e2
--- /dev/null
+++ b/android/SherpaOnnxVadAsr/settings.gradle
@@ -0,0 +1,16 @@
+pluginManagement {
+ repositories {
+ gradlePluginPortal()
+ google()
+ mavenCentral()
+ }
+}
+dependencyResolutionManagement {
+ repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+ repositories {
+ google()
+ mavenCentral()
+ }
+}
+rootProject.name = "SherpaOnnxVadAsr"
+include ':app'