OptionalaudioSelected audio input (microphone) device ID
OptionalaudioSelected audio output (speaker) device ID
OptionalaudioHow the microphone is captured — voice, music or instrument.
Chosen under the selector's Advanced section; persisted with the devices.
OptionalmicrophoneMicrophone boost in dB (0 = as captured). Persisted with the devices and
read by the room at join, but NOT reported through onDeviceChange — a
gain change is not a device change and must not re-open anything. Live
changes arrive through onMicrophoneBoostChange.
OptionalvideoSelected video input (camera) device ID
Currently selected devices for audio/video input and output.
Remarks
Each property holds the deviceId of the selected device. All properties are optional - undefined means no specific device selected (use system default).
Example