fix(audio-levels) check if local stats are supported before starting stats collection.

JitsiConference.js

 import Settings from './modules/settings/Settings';
 import AudioOutputProblemDetector from './modules/statistics/AudioOutputProblemDetector';
 import AvgRTPStatsReporter from './modules/statistics/AvgRTPStatsReporter';
+import LocalStatsCollector from './modules/statistics/LocalStatsCollector';
 import SpeakerStatsCollector from './modules/statistics/SpeakerStatsCollector';
 import Statistics from './modules/statistics/statistics';
 import Transcriber from './modules/transcription/transcriber';
     }
 
     // Generates events based on no audio input detector.
-    if (config.enableNoAudioDetection && !config.disableAudioLevels) {
+    if (config.enableNoAudioDetection && !config.disableAudioLevels && LocalStatsCollector.isLocalStatsSupported()) {
         this._noAudioSignalDetection = new NoAudioSignalDetection(this);
         this._noAudioSignalDetection.on(DetectionEvents.NO_AUDIO_INPUT, () => {
             this.eventEmitter.emit(JitsiConferenceEvents.NO_AUDIO_INPUT);

JitsiMeetJS.ts

                         'success',
                         getAnalyticsAttributesFromOptions(restOptions)));
 
-                if (!RTC.options.disableAudioLevels) {
+                if (this.isCollectingLocalStats()) {
                     for (let i = 0; i < tracks.length; i++) {
                         const track = tracks[i];
 
      * @param {boolean} True if stats are being collected for local tracks.
      */
     isCollectingLocalStats() {
-        return Statistics.audioLevelsEnabled
-            && LocalStatsCollector.isLocalStatsSupported();
+        return Statistics.audioLevelsEnabled && LocalStatsCollector.isLocalStatsSupported();
     },
 
     /**

modules/statistics/LocalStatsCollector.js

  * @returns {boolean}
  */
 LocalStatsCollector.isLocalStatsSupported = function() {
-    return Boolean(window.AudioContext);
+    return Boolean(window?.AudioContext);
 };
 
 /**