Audio Source forwards Android microphone audio input to the PulseAudio daemon through ADB, so you can use your Android device as a USB microphone. Requirements: Device with at least Android 4.0 (API level 14), but fully tested only on Android 10 (API level 29) so your mileage may vary. GNU/Linux machine with: Android SDK Platform Tools (requires adb in PATH). PulseAudio (requires pactl in PATH). Socat (requires socat in PATH). For further details, see the project's documentation.