VehicleOfflineVoice

Android MVP for a local/offline vehicle voice assistant.

Current Scope

M3 keeps the Android foreground-service audio shell and adds sherpa-onnx keyword spotting:

Kotlin Android app package: com.company.vehiclevoice
Debug MainActivity with start, stop, and clear-log buttons
Runtime permission request for microphone and Android 13 notifications
VoiceForegroundService that starts and stops as a foreground service
Foreground notification with a stop action
AudioRecorder using AudioRecord at 16 kHz, mono, PCM16
20 ms PCM frames with live RMS displayed on the debug page
sherpa-onnx Android CPU AAR packaged for arm64-v8a
KWS model assets copied on first start to filesDir/models/kws
Wake words: 小智小智 and 你好小智
Audio frames flow into KwsEngine; wake hits switch service state from IDLE_KWS to LISTENING
No VAD, ASR, TTS, Redis, Unity integration, or network permission yet

Open this folder in Android Studio and use:

Build -> Build APK(s)

Or build from PowerShell with the checked-in Gradle Wrapper:

.\gradlew.bat :app:assembleDebug

The project deliberately does not request INTERNET permission for the phone mock stage.