How the microphone is captured — see AudioProfile.
Whether local microphone is muted
Whether speaker/output is muted
Whether screen sharing is active
Whether local camera is muted/off
Boost applied to the microphone before the encoder, in dB (0 = as
captured, up to MICROPHONE_BOOST_MAX_DB). Needs the
enableMicrophoneBoost option; behind a limiter so it cannot clip.
Selected audio output (speaker) device id, or null for the system default. Consumers apply this to playback elements via
setSinkId.