Add Android demo for audio tagging (#776)

See https://k2-fsa.github.io/sherpa/onnx/audio-tagging/apk.html

+name: apk-audio-tagging
+
+on:
+  push:
+    tags:
+      - '*'
+
+  workflow_dispatch:
+
+concurrency:
+  group: apk-audio-tagging-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: write
+
+jobs:
+  apk_audio_tagging:
+    if: github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa'
+    runs-on: ${{ matrix.os }}
+    name: apk for audio tagging ${{ matrix.index }}/${{ matrix.total }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        total: ["1"]
+        index: ["0"]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      # https://github.com/actions/setup-java
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin' # See 'Supported distributions' for available options
+          java-version: '21'
+
+      - name: ccache
+        uses: hendrikmuhs/ccache-action@v1.2
+        with:
+          key: ${{ matrix.os }}-android
+
+      - name: Display NDK HOME
+        shell: bash
+        run: |
+          echo "ANDROID_NDK_LATEST_HOME: ${ANDROID_NDK_LATEST_HOME}"
+          ls -lh ${ANDROID_NDK_LATEST_HOME}
+
+      - name: Install Python dependencies
+        shell: bash
+        run: |
+          python3 -m pip install --upgrade pip jinja2
+
+      - name: Setup build tool version variable
+        shell: bash
+        run: |
+          echo "---"
+          ls -lh /usr/local/lib/android/
+          echo "---"
+
+          ls -lh /usr/local/lib/android/sdk
+          echo "---"
+
+          ls -lh /usr/local/lib/android/sdk/build-tools
+          echo "---"
+
+          BUILD_TOOL_VERSION=$(ls /usr/local/lib/android/sdk/build-tools/ | tail -n 1)
+          echo "BUILD_TOOL_VERSION=$BUILD_TOOL_VERSION" >> $GITHUB_ENV
+          echo "Last build tool version is: $BUILD_TOOL_VERSION"
+
+      - name: Generate build script
+        shell: bash
+        run: |
+          cd scripts/apk
+
+          total=${{ matrix.total }}
+          index=${{ matrix.index }}
+
+          ./generate-audio-tagging-apk-script.py --total $total --index $index
+
+          chmod +x build-apk-audio-tagging.sh
+          mv -v ./build-apk-audio-tagging.sh ../..
+
+      - name: build APK
+        shell: bash
+        run: |
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+          cmake --version
+
+          export ANDROID_NDK=$ANDROID_NDK_LATEST_HOME
+          ./build-apk-audio-tagging.sh
+
+      - name: Display APK
+        shell: bash
+        run: |
+          ls -lh ./apks/
+          du -h -d1 .
+
+      # https://github.com/marketplace/actions/sign-android-release
+      - uses: r0adkll/sign-android-release@v1
+        name: Sign app APK
+        with:
+          releaseDirectory: ./apks
+          signingKeyBase64: ${{ secrets.ANDROID_SIGNING_KEY }}
+          alias: ${{ secrets.ANDROID_SIGNING_KEY_ALIAS }}
+          keyStorePassword: ${{ secrets.ANDROID_SIGNING_KEY_STORE_PASSWORD }}
+        env:
+          BUILD_TOOLS_VERSION: ${{ env.BUILD_TOOL_VERSION }}
+
+      - name: Display APK for audio tagging after signing
+        shell: bash
+        run: |
+          ls -lh ./apks/
+          du -h -d1 .
+
+      - name: Rename APK for audio tagging after signing
+        shell: bash
+        run: |
+          cd apks
+          rm -fv signingKey.jks
+          rm -fv *.apk.idsig
+          rm -fv *-aligned.apk
+
+          all_apks=$(ls -1 *-signed.apk)
+          echo "----"
+          echo $all_apks
+          echo "----"
+          for apk in ${all_apks[@]}; do
+            n=$(echo $apk | sed -e s/-signed//)
+            mv -v $apk $n
+          done
+
+          cd ..
+
+          ls -lh ./apks/
+          du -h -d1 .
+
+      - name: Display APK after rename
+        shell: bash
+        run: |
+          ls -lh ./apks/
+          du -h -d1 .
+
+      - name: Publish to huggingface
+        env:
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 20
+          timeout_seconds: 200
+          shell: bash
+          command: |
+            git config --global user.email "csukuangfj@gmail.com"
+            git config --global user.name "Fangjun Kuang"
+
+            rm -rf huggingface
+            export GIT_LFS_SKIP_SMUDGE=1
+
+            git clone https://huggingface.co/csukuangfj/sherpa-onnx-apk huggingface
+            cd huggingface
+            git fetch
+            git pull
+            git merge -m "merge remote" --ff origin main
+
+            mkdir -p audio-tagging
+            cp -v ../apks/*.apk ./audio-tagging/
+            git status
+            git lfs track "*.apk"
+            git add .
+            git commit -m "add more apks"
+            git push https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/sherpa-onnx-apk main

@@ -18,7 +18,7 @@ jobs:
   apk_speaker_identification:
   apk_speaker_identification:
     if: github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa'
     if: github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa'
     runs-on: ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
-    name: apk for tts ${{ matrix.index }}/${{ matrix.total }}
+    name: apk for speaker identification ${{ matrix.index }}/${{ matrix.total }}
     strategy:
     strategy:
       fail-fast: false
       fail-fast: false
       matrix:
       matrix:

+*.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 {
+    id("com.android.application")
+    id("org.jetbrains.kotlin.android")
+}
+
+android {
+    namespace = "com.k2fsa.sherpa.onnx.audio.tagging"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.k2fsa.sherpa.onnx.audio.tagging"
+        minSdk = 21
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        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("androidx.core:core-ktx:1.12.0")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.7.0")
+    implementation("androidx.activity:activity-compose:1.8.2")
+    implementation(platform("androidx.compose:compose-bom:2023.08.00"))
+    implementation("androidx.compose.ui:ui")
+    implementation("androidx.compose.ui:ui-graphics")
+    implementation("androidx.compose.ui:ui-tooling-preview")
+    implementation("androidx.compose.material3:material3")
+    testImplementation("junit:junit:4.13.2")
+    androidTestImplementation("androidx.test.ext:junit:1.1.5")
+    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
+    androidTestImplementation(platform("androidx.compose:compose-bom:2023.08.00"))
+    androidTestImplementation("androidx.compose.ui:ui-test-junit4")
+    debugImplementation("androidx.compose.ui:ui-tooling")
+    debugImplementation("androidx.compose.ui:ui-test-manifest")
+}

+# 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

+package com.k2fsa.sherpa.onnx.audio.tagging
+
+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.audio.tagging", appContext.packageName)
+    }
+}

+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.SherpaOnnxAudioTagging"
+        tools:targetApi="31">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:theme="@style/Theme.SherpaOnnxAudioTagging">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

@@ -5,24 +5,24 @@ import android.util.Log
 
 
 private val TAG = "sherpa-onnx"
 private val TAG = "sherpa-onnx"
 
 
-data class OfflineZipformerAudioTaggingModelConfig (
+data class OfflineZipformerAudioTaggingModelConfig(
     val model: String,
     val model: String,
 )
 )
 
 
-data class AudioTaggingModelConfig (
+data class AudioTaggingModelConfig(
     var zipformer: OfflineZipformerAudioTaggingModelConfig,
     var zipformer: OfflineZipformerAudioTaggingModelConfig,
     var numThreads: Int = 1,
     var numThreads: Int = 1,
     var debug: Boolean = false,
     var debug: Boolean = false,
     var provider: String = "cpu",
     var provider: String = "cpu",
 )
 )
 
 
-data class AudioTaggingConfig (
+data class AudioTaggingConfig(
     var model: AudioTaggingModelConfig,
     var model: AudioTaggingModelConfig,
     var labels: String,
     var labels: String,
     var topK: Int = 5,
     var topK: Int = 5,
 )
 )
 
 
-data class AudioEvent (
+data class AudioEvent(
     val name: String,
     val name: String,
     val index: Int,
     val index: Int,
     val prob: Float,
     val prob: Float,
@@ -43,10 +43,10 @@ class AudioTagging(
     }
     }
 
 
     protected fun finalize() {
     protected fun finalize() {
-      if(ptr != 0L) {
-        delete(ptr)
-        ptr = 0
-      }
+        if (ptr != 0L) {
+            delete(ptr)
+            ptr = 0
+        }
     }
     }
 
 
     fun release() = finalize()
     fun release() = finalize()
@@ -56,20 +56,23 @@ class AudioTagging(
         return OfflineStream(p)
         return OfflineStream(p)
     }
     }
 
 
-    fun compute(stream: OfflineStream, topK: Int=-1): ArrayList<AudioEvent> {
-      var events :Array<Any> = compute(ptr, stream.ptr, topK)
-      val ans = ArrayList<AudioEvent>()
-
-      for (e in events) {
-        val p :Array<Any> = e as Array<Any>
-        ans.add(AudioEvent(
-          name=p[0] as String,
-          index=p[1] as Int,
-          prob=p[2] as Float,
-        ))
-      }
+    @Suppress("UNCHECKED_CAST")
+    fun compute(stream: OfflineStream, topK: Int = -1): ArrayList<AudioEvent> {
+        val events: Array<Any> = compute(ptr, stream.ptr, topK)
+        val ans = ArrayList<AudioEvent>()
+
+        for (e in events) {
+            val p: Array<Any> = e as Array<Any>
+            ans.add(
+                AudioEvent(
+                    name = p[0] as String,
+                    index = p[1] as Int,
+                    prob = p[2] as Float,
+                )
+            )
+        }
 
 
-      return ans
+        return ans
     }
     }
 
 
     private external fun newFromAsset(
     private external fun newFromAsset(
@@ -93,3 +96,42 @@ class AudioTagging(
         }
         }
     }
     }
 }
 }
+
+// please refer to
+// https://github.com/k2-fsa/sherpa-onnx/releases/tag/audio-tagging-models
+// to download more models
+//
+// See also
+// https://k2-fsa.github.io/sherpa/onnx/audio-tagging/
+fun getAudioTaggingConfig(type: Int): AudioTaggingConfig? {
+    when (type) {
+        0 -> {
+            val modelDir = "sherpa-onnx-zipformer-small-audio-tagging-2024-04-15"
+            return AudioTaggingConfig(
+                model = AudioTaggingModelConfig(
+                    zipformer = OfflineZipformerAudioTaggingModelConfig(model = "$modelDir/model.int8.onnx"),
+                    numThreads = 1,
+                    debug = true,
+                ),
+                labels = "$modelDir/class_labels_indices.csv",
+                topK = 3,
+            )
+        }
+
+        1 -> {
+            val modelDir = "sherpa-onnx-zipformer-audio-tagging-2024-04-09"
+            return AudioTaggingConfig(
+                model = AudioTaggingModelConfig(
+                    zipformer = OfflineZipformerAudioTaggingModelConfig(model = "$modelDir/model.int8.onnx"),
+                    numThreads = 1,
+                    debug = true,
+                ),
+                labels = "$modelDir/class_labels_indices.csv",
+                topK = 3,
+            )
+        }
+
+    }
+
+    return null
+}

+@file:OptIn(ExperimentalMaterial3Api::class, ExperimentalFoundationApi::class)
+
+package com.k2fsa.sherpa.onnx.audio.tagging
+
+import android.Manifest
+
+import android.app.Activity
+import android.content.pm.PackageManager
+import android.media.AudioFormat
+import android.media.AudioRecord
+import androidx.compose.foundation.lazy.items
+import android.media.MediaRecorder
+import android.util.Log
+import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.material3.CenterAlignedTopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.TopAppBarDefaults
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+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.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.material3.Button
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Slider
+import androidx.compose.material3.Surface
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.core.app.ActivityCompat
+import com.k2fsa.sherpa.onnx.AudioEvent
+import kotlin.concurrent.thread
+
+
+@Composable
+fun Home() {
+    Scaffold(
+        topBar = {
+            CenterAlignedTopAppBar(
+                colors = TopAppBarDefaults.topAppBarColors(
+                    containerColor = MaterialTheme.colorScheme.primaryContainer,
+                    titleContentColor = MaterialTheme.colorScheme.primary,
+                ),
+                title = {
+                    Text(
+                        "Next-gen Kaldi: Audio tagging",
+                        fontWeight = FontWeight.Bold,
+                        fontSize = 15.sp,
+                    )
+                },
+            )
+        },
+        content = {
+            MyApp(it)
+        },
+    )
+}
+
+private var audioRecord: AudioRecord? = null
+private val sampleRateInHz = 16000
+
+@Composable
+fun MyApp(padding: PaddingValues) {
+    val activity = LocalContext.current as Activity
+    var threshold by remember { mutableStateOf<Float>(0.6F) }
+    var isStarted by remember { mutableStateOf(false) }
+    val result = remember { mutableStateListOf<AudioEvent>() }
+
+
+    val onButtonClick: () -> Unit = {
+        isStarted = !isStarted
+        if (isStarted) {
+            result.clear()
+            if (ActivityCompat.checkSelfPermission(
+                    activity,
+                    Manifest.permission.RECORD_AUDIO
+                ) != PackageManager.PERMISSION_GRANTED
+            ) {
+                Log.i(TAG, "Recording is not allowed")
+            } else {
+                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
+                )
+
+                thread(true) {
+                    Log.i(TAG, "processing samples")
+                    val interval = 0.1 // i.e., 100 ms
+                    val bufferSize = (interval * sampleRateInHz).toInt() // in samples
+                    val buffer = ShortArray(bufferSize)
+                    val sampleList = ArrayList<FloatArray>()
+                    audioRecord?.let {
+                        it.startRecording()
+                        while (isStarted) {
+                            val ret = it.read(buffer, 0, buffer.size)
+                            ret.let { n ->
+                                val samples = FloatArray(n) { buffer[it] / 32768.0f }
+                                sampleList.add(samples)
+                            }
+                        }
+                    }
+                    Log.i(TAG, "Stop recording")
+                    Log.i(TAG, "Start recognition")
+                    val samples = Flatten(sampleList)
+                    val stream = Tagger.tagger.createStream()
+                    stream.acceptWaveform(samples, sampleRateInHz)
+                    val events = Tagger.tagger.compute(stream)
+                    stream.release()
+                    for (e in events) {
+                        if (e.prob > threshold) {
+                            result.add(e)
+                        }
+
+                    }
+
+                }
+            }
+        }
+    }
+
+    Box(
+        modifier = Modifier.fillMaxSize(),
+        contentAlignment = Alignment.TopCenter
+    ) {
+        Column(
+            Modifier.padding(padding),
+            horizontalAlignment = Alignment.CenterHorizontally,
+        ) {
+            Spacer(modifier = Modifier.height(16.dp))
+            Text("Threshold " + String.format("%.1f", threshold))
+            Slider(
+                value = threshold,
+                onValueChange = { threshold = it },
+                valueRange = 0.1F..1.0F,
+                modifier = Modifier.fillMaxWidth()
+            )
+
+            Button(onClick = onButtonClick) {
+                if (isStarted) {
+                    Text("Stop")
+                } else {
+                    Text("Start")
+                }
+            }
+
+            Spacer(modifier = Modifier.height(16.dp))
+            LazyColumn(modifier = Modifier.fillMaxSize()) {
+                if (!result.isEmpty()) {
+
+                    item {
+                        Row(
+                            modifier = Modifier.fillMaxWidth(),
+                            horizontalArrangement = Arrangement.SpaceEvenly
+                        ) {
+                            Text(
+                                text = "Event name",
+                            )
+                            Text(
+                                text = "Probability",
+                            )
+                        }
+                    }
+                }
+
+                items(result) { event: AudioEvent ->
+                    ViewRow(event = event)
+                }
+            }
+        }
+    }
+}
+
+@Composable
+fun ShowResult(result: String) {
+    Text(
+        modifier = Modifier.fillMaxWidth(),
+        textAlign = TextAlign.Center,
+        color = MaterialTheme.colorScheme.primary,
+        text = result,
+    )
+}
+
+@Composable
+fun ViewRow(
+    modifier: Modifier = Modifier,
+    event: AudioEvent
+) {
+    Surface(
+        modifier = modifier
+            .fillMaxWidth()
+            .padding(8.dp),
+        color = MaterialTheme.colorScheme.inversePrimary,
+    ) {
+        Row(
+            modifier = modifier,
+            horizontalArrangement = Arrangement.Center,
+            verticalAlignment = Alignment.CenterVertically,
+        ) {
+            Text(
+                text = event.name,
+                modifier = modifier.weight(1.0F),
+            )
+            Text(
+                text = "%.2f".format(event.prob),
+                modifier = modifier.weight(1.0F),
+            )
+        }
+    }
+}
+
+fun Flatten(sampleList: ArrayList<FloatArray>): FloatArray {
+    var totalSamples = 0
+    for (a in sampleList) {
+        totalSamples += a.size
+    }
+    var i = 0
+    val samples = FloatArray(totalSamples)
+    for (a in sampleList) {
+        for (s in a) {
+            samples[i] = s
+            i += 1
+        }
+    }
+    Log.i(TAG, "$i, $totalSamples")
+
+    return samples
+}

+package com.k2fsa.sherpa.onnx.audio.tagging
+
+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.layout.fillMaxSize
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.core.app.ActivityCompat
+import com.k2fsa.sherpa.onnx.audio.tagging.ui.theme.SherpaOnnxAudioTaggingTheme
+
+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?) {
+
+        super.onCreate(savedInstanceState)
+        setContent {
+            AudioTaggingApp()
+        }
+        ActivityCompat.requestPermissions(this, permissions, REQUEST_RECORD_AUDIO_PERMISSION)
+        Tagger.initTagger(this.assets)
+    }
+
+    @Suppress("DEPRECATION")
+    @Deprecated("Deprecated in Java")
+    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 AudioTaggingApp() {
+    SherpaOnnxAudioTaggingTheme {
+        // A surface container using the 'background' color from the theme
+        Surface(
+            modifier = Modifier.fillMaxSize(),
+            color = MaterialTheme.colorScheme.background
+        ) {
+            Home()
+        }
+    }
+}

@@ -5,10 +5,10 @@ class OfflineStream(var ptr: Long) {
         acceptWaveform(ptr, samples, sampleRate)
         acceptWaveform(ptr, samples, sampleRate)
 
 
     protected fun finalize() {
     protected fun finalize() {
-      if(ptr != 0L) {
-        delete(ptr)
-        ptr = 0
-      }
+        if (ptr != 0L) {
+            delete(ptr)
+            ptr = 0
+        }
     }
     }
 
 
     fun release() = finalize()
     fun release() = finalize()

+package com.k2fsa.sherpa.onnx.audio.tagging
+
+import android.content.res.AssetManager
+import android.util.Log
+import com.k2fsa.sherpa.onnx.AudioTagging
+import com.k2fsa.sherpa.onnx.getAudioTaggingConfig
+
+object Tagger {
+    private var _tagger: AudioTagging? = null
+    val tagger: AudioTagging
+        get() {
+            return _tagger!!
+        }
+    fun initTagger(assetManager: AssetManager? = null) {
+        synchronized(this) {
+            if (_tagger != null) {
+                return
+            }
+
+            Log.i(TAG, "Initializing audio tagger")
+            val config = getAudioTaggingConfig(type = 0)!!
+            _tagger = AudioTagging(assetManager, config)
+        }
+    }
+}

+package com.k2fsa.sherpa.onnx.audio.tagging.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)

+package com.k2fsa.sherpa.onnx.audio.tagging.ui.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.SideEffect
+import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalView
+import androidx.core.view.WindowCompat
+
+private val DarkColorScheme = darkColorScheme(
+    primary = Purple80,
+    secondary = PurpleGrey80,
+    tertiary = Pink80
+)
+
+private val LightColorScheme = lightColorScheme(
+    primary = Purple40,
+    secondary = PurpleGrey40,
+    tertiary = Pink40
+
+    /* Other default colors to override
+    background = Color(0xFFFFFBFE),
+    surface = Color(0xFFFFFBFE),
+    onPrimary = Color.White,
+    onSecondary = Color.White,
+    onTertiary = Color.White,
+    onBackground = Color(0xFF1C1B1F),
+    onSurface = Color(0xFF1C1B1F),
+    */
+)
+
+@Composable
+fun SherpaOnnxAudioTaggingTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    // Dynamic color is available on Android 12+
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit
+) {
+    val colorScheme = when {
+        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            val context = LocalContext.current
+            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+        }
+
+        darkTheme -> DarkColorScheme
+        else -> LightColorScheme
+    }
+    val view = LocalView.current
+    if (!view.isInEditMode) {
+        SideEffect {
+            val window = (view.context as Activity).window
+            window.statusBarColor = colorScheme.primary.toArgb()
+            WindowCompat.getInsetsController(window, view).isAppearanceLightStatusBars = darkTheme
+        }
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content
+    )
+}

+package com.k2fsa.sherpa.onnx.audio.tagging.ui.theme
+
+import androidx.compose.material3.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+    bodyLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.5.sp
+    )
+    /* Other default text styles to override
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp
+    )
+    */
+)

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>

+<resources>
+    <string name="app_name">SherpaOnnxAudioTagging</string>
+</resources>

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="Theme.SherpaOnnxAudioTagging" parent="android:Theme.Material.Light.NoActionBar" />
+</resources>

+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older that API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>

+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>

+package com.k2fsa.sherpa.onnx.audio.tagging
+
+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)
+    }
+}

+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    id("com.android.application") version "8.2.0" apply false
+    id("org.jetbrains.kotlin.android") version "1.9.0" 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. 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

+#Tue Apr 16 10:10:01 CST 2024
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-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()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "SherpaOnnxAudioTagging"
+include(":app")

+../android/SherpaOnnxAudioTagging/app/src/main/java/com/k2fsa/sherpa/onnx/audio/tagging/AudioTagging.kt

+../android/SherpaOnnxAudioTagging/app/src/main/java/com/k2fsa/sherpa/onnx/audio/tagging/OfflineStream.kt

+#!/usr/bin/env bash
+#
+# Auto generated! Please DO NOT EDIT!
+
+# Please set the environment variable ANDROID_NDK
+# before running this script
+
+# Inside the $ANDROID_NDK directory, you can find a binary ndk-build
+# and some other files like the file "build/cmake/android.toolchain.cmake"
+
+set -ex
+
+log() {
+  # This function is from espnet
+  local fname=${BASH_SOURCE[1]##*/}
+  echo -e "$(date '+%Y-%m-%d %H:%M:%S') (${fname}:${BASH_LINENO[0]}:${FUNCNAME[1]}) $*"
+}
+
+SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+
+log "Building audio tagging APK for sherpa-onnx v${SHERPA_ONNX_VERSION}"
+
+log "====================arm64-v8a================="
+./build-android-arm64-v8a.sh
+log "====================armv7-eabi================"
+./build-android-armv7-eabi.sh
+log "====================x86-64===================="
+./build-android-x86-64.sh
+log "====================x86===================="
+./build-android-x86.sh
+
+mkdir -p apks
+
+{% for model in model_list %}
+pushd ./android/SherpaOnnxAudioTagging/app/src/main/assets/
+model_name={{ model.model_name }}
+short_name={{ model.short_name }}
+type={{ model.idx }}
+
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/audio-tagging-models/${model_name}.tar.bz2
+tar xvf ${model_name}.tar.bz2
+rm -rfv $model_name/model.onnx
+rm -rfv $model_name/test_wavs
+rm -rf  *.tar.bz2
+ls -lh $model_name
+
+popd
+# Now we are at the project root directory
+
+git checkout .
+pushd android/SherpaOnnxAudioTagging/app/src/main/java/com/k2fsa/sherpa/onnx/audio/tagging/
+sed -i.bak s/"type = 0/type = $type/" ./Tagger.kt
+git diff
+popd
+
+for arch in arm64-v8a armeabi-v7a x86_64 x86; do
+  log "------------------------------------------------------------"
+  log "build audio tagging apk for $arch"
+  log "------------------------------------------------------------"
+  src_arch=$arch
+  if [ $arch == "armeabi-v7a" ]; then
+    src_arch=armv7-eabi
+  elif [ $arch == "x86_64" ]; then
+    src_arch=x86-64
+  fi
+
+  ls -lh ./build-android-$src_arch/install/lib/*.so
+
+  cp -v ./build-android-$src_arch/install/lib/*.so ./android/SherpaOnnxAudioTagging/app/src/main/jniLibs/$arch/
+
+  pushd ./android/SherpaOnnxAudioTagging
+  sed -i.bak s/2048/9012/g ./gradle.properties
+  git diff ./gradle.properties
+  ./gradlew assembleRelease
+  popd
+
+  mv android/SherpaOnnxAudioTagging/app/build/outputs/apk/release/app-release-unsigned.apk ./apks/sherpa-onnx-${SHERPA_ONNX_VERSION}-$arch-audio-tagging-$short_name.apk
+  ls -lh apks
+  rm -v ./android/SherpaOnnxAudioTagging/app/src/main/jniLibs/$arch/*.so
+done
+
+rm -rf ./android/SherpaOnnxAudioTagging/app/src/main/assets/$model_name
+{% endfor %}
+
+git checkout .
+
+ls -lh apks/

@@ -51,7 +51,7 @@ popd
 
 
 for arch in arm64-v8a armeabi-v7a x86_64 x86; do
 for arch in arm64-v8a armeabi-v7a x86_64 x86; do
   log "------------------------------------------------------------"
   log "------------------------------------------------------------"
-  log "build tts apk for $arch"
+  log "build speaker identification apk for $arch"
   log "------------------------------------------------------------"
   log "------------------------------------------------------------"
   src_arch=$arch
   src_arch=$arch
   if [ $arch == "armeabi-v7a" ]; then
   if [ $arch == "armeabi-v7a" ]; then

+#!/usr/bin/env python3
+
+import argparse
+from dataclasses import dataclass
+from typing import List, Optional
+
+import jinja2
+
+
+def get_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--total",
+        type=int,
+        default=1,
+        help="Number of runners",
+    )
+    parser.add_argument(
+        "--index",
+        type=int,
+        default=0,
+        help="Index of the current runner",
+    )
+    return parser.parse_args()
+
+
+@dataclass
+class AudioTaggingModel:
+    model_name: str
+    idx: int
+    short_name: str = ""
+
+
+def get_models():
+    # see https://github.com/k2-fsa/sherpa-onnx/releases/tag/audio-tagging-models
+    icefall_models = [
+        AudioTaggingModel(
+            model_name="sherpa-onnx-zipformer-small-audio-tagging-2024-04-15",
+            idx=0,
+            short_name="small_zipformer",
+        ),
+        AudioTaggingModel(
+            model_name="sherpa-onnx-zipformer-audio-tagging-2024-04-09",
+            idx=1,
+            short_name="zipformer",
+        ),
+    ]
+
+    return icefall_models
+
+
+def main():
+    args = get_args()
+    index = args.index
+    total = args.total
+    assert 0 <= index < total, (index, total)
+
+    all_model_list = get_models()
+
+    num_models = len(all_model_list)
+
+    num_per_runner = num_models // total
+    if num_per_runner <= 0:
+        raise ValueError(f"num_models: {num_models}, num_runners: {total}")
+
+    start = index * num_per_runner
+    end = start + num_per_runner
+
+    remaining = num_models - args.total * num_per_runner
+
+    print(f"{index}/{total}: {start}-{end}/{num_models}")
+
+    d = dict()
+    d["model_list"] = all_model_list[start:end]
+    if index < remaining:
+        s = args.total * num_per_runner + index
+        d["model_list"].append(all_model_list[s])
+        print(f"{s}/{num_models}")
+
+    filename_list = ["./build-apk-audio-tagging.sh"]
+    for filename in filename_list:
+        environment = jinja2.Environment()
+        with open(f"{filename}.in") as f:
+            s = f.read()
+        template = environment.from_string(s)
+
+        s = template.render(**d)
+        with open(filename, "w") as f:
+            print(s, file=f)
+
+
+if __name__ == "__main__":
+    main()

@@ -58,6 +58,29 @@ static AudioTaggingConfig GetAudioTaggingConfig(JNIEnv *env, jobject config) {
 }  // namespace sherpa_onnx
 }  // namespace sherpa_onnx
 
 
 SHERPA_ONNX_EXTERN_C
 SHERPA_ONNX_EXTERN_C
+JNIEXPORT jlong JNICALL Java_com_k2fsa_sherpa_onnx_AudioTagging_newFromAsset(
+    JNIEnv *env, jobject /*obj*/, jobject asset_manager, jobject _config) {
+#if __ANDROID_API__ >= 9
+  AAssetManager *mgr = AAssetManager_fromJava(env, asset_manager);
+  if (!mgr) {
+    SHERPA_ONNX_LOGE("Failed to get asset manager: %p", mgr);
+  }
+#endif
+
+  auto config = sherpa_onnx::GetAudioTaggingConfig(env, _config);
+  SHERPA_ONNX_LOGE("audio tagging newFromAsset config:\n%s",
+                   config.ToString().c_str());
+
+  auto tagger = new sherpa_onnx::AudioTagging(
+#if __ANDROID_API__ >= 9
+      mgr,
+#endif
+      config);
+
+  return (jlong)tagger;
+}
+
+SHERPA_ONNX_EXTERN_C
 JNIEXPORT jlong JNICALL Java_com_k2fsa_sherpa_onnx_AudioTagging_newFromFile(
 JNIEXPORT jlong JNICALL Java_com_k2fsa_sherpa_onnx_AudioTagging_newFromFile(
     JNIEnv *env, jobject /*obj*/, jobject _config) {
     JNIEnv *env, jobject /*obj*/, jobject _config) {
   auto config = sherpa_onnx::GetAudioTaggingConfig(env, _config);
   auto config = sherpa_onnx::GetAudioTaggingConfig(env, _config);