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Stream multi-channel audio to Amazon Transcribe using the Web Audio API

Machine Learning Blog

This article demonstrates how to stream multi-channel audio to Amazon Transcribe using the Web Audio API, providing a solution for real-time transcription from two microphones.

  • Uses Web Audio API to merge audio from two microphones into a dual-channel stream
  • Addresses challenges with single-channel transcription like speaker label confusion
  • Utilizes AudioContext, ChannelMergerNode, and AudioWorklet for audio processing
  • Encodes audio data to PCM format compatible with Amazon Transcribe
  • Enables channel identification and speaker labeling in transcription

The solution provides a flexible approach for creating real-time transcription applications with multiple audio sources, offering improved accuracy and speaker differentiation.

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