feat(notifications): Manage audio notifications

config.js

         // userRegion: "asia"
     },
 
+    // Decides whether the start/stop recording audio notifications should play on record.
+    // disableRecordAudioNotification: false,
+
     // Information for the chrome extension banner
     // chromeExtensionBanner: {
     //     // The chrome extension to be installed address

react/features/base/config/configWhitelist.js

+import extraConfigWhitelist from './extraConfigWhitelist';
+
 /**
  * The config keys to whitelist, the keys that can be overridden.
  * Currently we can only whitelist the first part of the properties, like
     'useStunTurn',
     'webrtcIceTcpDisable',
     'webrtcIceUdpDisable'
-];
+].concat(extraConfigWhitelist);

react/features/base/config/extraConfigWhitelist.js

+/**
+ * Deploy-specific configuration whitelists
+ */
+export default [];

react/features/recording/middleware.js

         // but we want to indicate those in case of sip gateway
         const {
             iAmRecorder,
-            iAmSipGateway
+            iAmSipGateway,
+            disableRecordAudioNotification
         } = getState()['features/base/config'];
 
         if (iAmRecorder && !iAmSipGateway) {
                 const initiatorName = initiator && getParticipantDisplayName(getState, initiator.getId());
 
                 initiatorName && dispatch(showStartedRecordingNotification(mode, initiatorName));
+                sendAnalytics(createRecordingEvent('start', mode));
+
+                if (disableRecordAudioNotification) {
+                    break;
+                }
 
                 let soundID;
 
                 }
 
                 if (soundID) {
-                    sendAnalytics(createRecordingEvent('start', mode));
                     dispatch(playSound(soundID));
                 }
             } else if (updatedSessionData.status === OFF
                     duration
                         = (Date.now() / 1000) - oldSessionData.timestamp;
                 }
+                sendAnalytics(createRecordingEvent('stop', mode, duration));
+
+                if (disableRecordAudioNotification) {
+                    break;
+                }
 
                 if (mode === JitsiRecordingConstants.mode.FILE) {
                     soundOff = RECORDING_OFF_SOUND_ID;
                 }
 
                 if (soundOff && soundOn) {
-                    sendAnalytics(createRecordingEvent('stop', mode, duration));
                     dispatch(stopSound(soundOn));
                     dispatch(playSound(soundOff));
                 }