Returns a number between 0.0 (silence) and 1.0 (maximum volume). The value is updated on the interval set when startLocalAudioLevelObserver() was called (default: 100ms).
await call.startLocalAudioLevelObserver(100);// Poll or call on a timer to get the current levelconst level = call.getLocalAudioLevel();console.log('Local audio level:', level); // e.g. 0.625