Constructor Detail

• MicrophoneManager

  MicrophoneManager(MediaManagerImpl mediaManager, Integer audioUsage, Function0<Integer> audioUsageProvider)

Method Detail

• getUsbInputDevices

   final StateFlow<List<UsbAudioInputDevice>> getUsbInputDevices()

  List of detected USB audio input devices.

  These devices are detected using Android's AudioDeviceCallback API and include USB microphones that may not appear in devices because AudioSwitch only detects devices with both input and output capabilities.

  Requires Android M (API 23) or higher.

• getSelectedUsbDevice

   final StateFlow<UsbAudioInputDevice> getSelectedUsbDevice()

  The currently selected USB input device, or null if using default routing.

• getStatus

   final StateFlow<DeviceStatus> getStatus()

  The status of the audio

• getIsEnabled

   final StateFlow<Boolean> getIsEnabled()

  Represents whether the audio is enabled

• getSelectedDevice

   final StateFlow<StreamAudioDevice> getSelectedDevice()

  Currently selected device

• getDevices

   final StateFlow<List<StreamAudioDevice>> getDevices()

  List of available devices.

• getAudioBitrateProfile

   final StateFlow<AudioBitrateProfile> getAudioBitrateProfile()

  The audio bitrate profile currently in force — observe this to drive a music/voice toggle.

  Only moves when the profile actually took. Set before joining it always does, since the pipeline is then built from it. On a running call it moves only if every reachable stage accepted the change; otherwise it keeps reporting the previous profile, so a toggle bound to it snaps back rather than claiming a switch the audio did not make, and setAudioBitrateProfile fails naming the stages that refused.

• getMediaManager

   final MediaManagerImpl getMediaManager()

• getAudioUsage

   final Integer getAudioUsage()

• getAudioUsageProvider

   final Function0<Integer> getAudioUsageProvider()

• pause

   final Unit pause(Boolean fromUser)

• resume

   final Unit resume(Boolean fromUser)

• disable

   final Unit disable(Boolean fromUser)

  Disable the audio track. Audio is still captured, but not send. This allows for the "you are muted" toast to indicate you are talking while muted

• setEnabled

   final Unit setEnabled(Boolean enabled, Boolean fromUser)

  Enable or disable the microphone

• select

   final Unit select(StreamAudioDevice device)

  Select a specific device

• listDevices

   final StateFlow<List<StreamAudioDevice>> listDevices()

  List the devices, returns a stateflow with audio devices

• setupUsbDeviceDetection

   final Unit setupUsbDeviceDetection()

  Sets up USB audio device detection using Android's AudioDeviceCallback.

  This detects USB input devices (microphones), such as the Rode Wireless Go II and other professional USB microphones.

  Requires Android M (API 23) or higher.

• selectUsbDevice

   final Boolean selectUsbDevice(UsbAudioInputDevice device)

  Selects a USB input device as the preferred audio input source.

  This routes audio recording to the specified USB device, bypassing AudioSwitch's default device selection. Use this for USB microphones that don't appear in devices.

  Parameters:

  device - The USB device to use, or null to restore default routing.

• clearUsbDeviceSelection

   final Unit clearUsbDeviceSelection()

  Clears the USB device selection, restoring default audio routing.

  Resets the state directly rather than going through selectUsbDevice with null, because the WebRTC ADM's setPreferredInputDevice does not accept null safely. When the USB device is physically removed, the system automatically falls back to default audio routing, so an explicit ADM call is unnecessary.

• listUsbDevices

   final StateFlow<List<UsbAudioInputDevice>> listUsbDevices()

  Lists all detected USB input devices.

• setAudioBitrateProfile

   final Result<Unit> setAudioBitrateProfile(AudioBitrateProfile profile)

  Sets the audio bitrate profile, before joining or on a running call, so a broadcaster who starts playing music can switch to MUSIC_HIGH_QUALITY without rejoining.

  Requires HiFi audio enabled in the dashboard settings. The Opus bitrate and channel count come from the server at join, so a mid-call switch does not renegotiate them.

  Expect a brief gap in captured audio on a mid-call switch: the platform rebuilds its capture path. The call is not interrupted otherwise.

  Echo cancellation goes off under MUSIC_HIGH_QUALITY, so treat music as a headphones setting. It also costs communication routing and Bluetooth capture — SCO only runs in communication mode.

  Read the profile in force back from audioBitrateProfile.

• cleanup

   final Unit cleanup()

• canHandleDeviceSwitch

   final Boolean canHandleDeviceSwitch()