block7.useEffect

(() => {
   if (isPublishing && publisher) {
     const audioTrack = publisher.getAudioSource();
     const stream = new MediaStream();
     stream.addTrack(audioTrack);
     const AudioContext = window.AudioContext;
     const context = new AudioContext();
     const source = context.createMediaStreamSource(stream);
     const id = roomName;
 
     const connectionConfig = {
       id,
       insightTypes: ['action_item', 'question'],
       source: source,
       config: {
         meetingTitle: 'My Test Meeting ' + id,
         confidenceThreshold: 0.5, // Offset in minutes from UTC
         encoding: 'LINEAR16',
         languageCode: 'en-US',
       speaker: {
         // Optional, if not specified, will simply not send an email in the end.
         userId: '', // Update with valid email
         name: preferences.userName || uuidv4(),
       },
       handlers: {
         /**
          * This will return live speech-to-text transcription of the call.
          */
         onSpeechDetected: (data) => {
           if (data) {
             if (data.user.name !== preferences.userName) {
               setCaptions(data.punctuated.transcript);
               setName(data.user.name);
             } else {
               setMyCaptions(data.punctuated.transcript);
             }
           }
         },
        
       },
     };
 
     const start = async () => {
       try {
         const stream = await symbl.createStream(connectionConfig);
         streamRef.current = stream;
         await stream.start();
         conversationId.current = await stream.conversationId;
         preferences.conversationId = conversationId.current;
       } catch (e) {
         console.log(e);
       }
     };
     start();
   }
 }, [
   isPublishing,
   roomName,
   preferences,
   publisher,
 ]);