AudioRecorder

Constructor

AudioRecorder(options)

Example

import { AudioRecorder } from 'react-native-audio-api';

function App() {
  const recorder = new AudioRecorder({
      sampleRate: 16000,
      bufferLengthInSamples: 16000,
    });

  recorder.onAudioReady((event) => {
      const { buffer, numFrames, when } = event;

      console.log(
        'Audio recorder buffer ready:',
        buffer.duration,
        numFrames,
        when
      );
    });

  recorder.start();
}

Methods

start

The above starts recording.

Returns undefined.

stop

The above stops recording.

Returns undefined.

connect

The above method connects recorder to the adapter. If the recorder is already connected it will change its adapter (it is equivalent of calling disconnect() previously). Be carefull RecorderAdapterNode can be connected only once. You can't connect same adapter twice (even to different recorders).

Parameters	Type	Description
node	RecorderAdapterNode	Adapter that we want to connect to.

Returns undefined

disconnect

The above method disconnects recorder from the currently connected adapter. It does not need to be called before connect.

onAudioReady

The above allows user to set a callback after every portion of data deliverance.

Parameters	Type	Description
callback	(OnAudioReadyEventType => void)	callback that will be invoked

Returns undefined.

Remarks

AudioRecorderOptions

Type definitions

interface AudioRecorderOptions {
  sampleRate: number;
  bufferLengthInSamples: number; //how many samples to be put in the buffer
}

OnAudioReadyEventType

Type definitions

interface OnAudioReadyEventType {
  buffer: AudioBuffer;
  numFrames: number; //number of frames in a buffer
  when: number; //timestamp
}