react-native-deepgram/lib/module/helpers/audioUtils.js

React Native SDK for Deepgram's AI-powered speech-to-text, real-time transcription, and text intelligence APIs. Supports live audio streaming, file transcription, sentiment analysis, and topic detection for iOS and Android.

"use strict";

import { Buffer } from 'buffer';
export function arrayBufferToBase64(buffer) {
  const bytes = new Uint8Array(buffer);
  return Buffer.from(bytes).toString('base64');
}
export function createAudioPlayerController() {
  let isActive = false;
  return {
    start: async (sampleRate = 16000, channels = 1) => {
      const {
        Deepgram
      } = await import('../NativeDeepgram');
      Deepgram.startPlayer?.(sampleRate, channels);
      isActive = true;
    },
    feed: async audio => {
      const {
        Deepgram
      } = await import('../NativeDeepgram');
      const b64 = typeof audio === 'string' ? audio : arrayBufferToBase64(audio);
      await Deepgram.feedAudio?.(b64);
    },
    stop: async () => {
      const {
        Deepgram
      } = await import('../NativeDeepgram');
      Deepgram.stopPlayer?.();
      isActive = false;
    },
    isActive: () => isActive
  };
}
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