Streaming_API

Streaming API Examples

streamingLiveMic.js

• Captures live microphone audio data by passing the data streaming from the mic instance into the Symbl API websocket connection.

  // Creating the mic instance
  const micInstance = mic({
      rate: sampleRateHertz,
      channels: '1',
      debug: false,
      exitOnSilence: 6,
  });
  
  // Capturing the raw audio stream from the microphone
  const micInputStream = micInstance.getAudioStream()
  
  // Passing the raw audio stream to the Symbl API websocket connection
  micInputStream.on('data', (data) => {
      connection.sendAudio(data)
  })

• Returns data defined via the insightTypes from Symbl API through the connection handlers methods.

  const connection = await sdk.startRealtimeRequest({
      id,
      insightTypes: ['action_item', 'question'],
      config: {
          meetingTitle: 'My Test Meeting', // Set name for meeting
          confidenceThreshold: 0.7,
          timezoneOffset: 480, // Offset in minutes from UTC
          languageCode: 'en-US',
          sampleRateHertz
      },
      handlers: {
          // This will return live speech-to-text transcription of the call.
          onSpeechDetected: (data) => {
              if (data) {
                  const { punctuated } = data
                  console.log('Live: ', punctuated && punctuated.transcript)
                  console.log('');
              }
              // console.log('onSpeechDetected ', JSON.stringify(data, null, 2));
          },
          
          // When processed messages are available, this callback will be called.
          onMessageResponse: (data) => {
              console.log('onMessageResponse', JSON.stringify(data, null, 2))
          },
          
          // When Symbl detects an insight, this callback will be called.
          onInsightResponse: (data) => {
              console.log('onInsightResponse', JSON.stringify(data, null, 2))
          },
          
          // When Symbl detects a topic, this callback will be called.
          onTopicResponse: (data) => {
              console.log('onTopicResponse', JSON.stringify(data, null, 2))
          }
      }
  })