receiveData.ts

/**
   * Receives streaming data and writes it to the recognizeStream for transcription
   *
   * @param {Buffer} data A section of audio data
   */
  receiveData(data: DataView) {
    if (
      this.newStream &&
      this.lastAudioInput.length !== 0 &&
      this.recognizeStream
    ) {
      // Approximate math to calculate time of chunks
      const chunkTime = this.streamingLimit / this.lastAudioInput.length;
      if (chunkTime !== 0) {
        if (this.bridgingOffset < 0) {
          this.bridgingOffset = 0;
        }
        if (this.bridgingOffset > this.finalRequestEndTime) {
          this.bridgingOffset = this.finalRequestEndTime;
        }
        const chunksFromMS = Math.floor(
          (this.finalRequestEndTime - this.bridgingOffset) / chunkTime
        );
        this.bridgingOffset = Math.floor(
          (this.lastAudioInput.length - chunksFromMS) * chunkTime
        );

        for (let i = chunksFromMS; i < this.lastAudioInput.length; i++) {
          this.recognizeStream.write(this.lastAudioInput[i]);
        }
      }
      this.newStream = false;
    }

    this.audioInput.push(data);

    if (this.recognizeStream) {
      this.recognizeStream.write(data);
    }
  }