startLocalAudioLevelObserver()
startLocalAudioLevelObserver(interval?: number)
Starts monitoring the audio level from the local participant.
Once started, a 'local-audio-level'
event will be emitted containing the latest audio level information.
Interval
The 'local-audio-level'
event is emitted at the specified frequency, which can be up to every 100ms.
If no frequency is specified, a default frequency of 500ms is used.