react-native-recorder-audio-system

React-native library, made to record system sounds of all android devices from version 10 and later.

Installation

npm install react-native-recorder-audio-system

Usage android < 14

import ScreenAudioRecorder, { Options } from 'react-native-recorder-audio-system';



  async function requestPermission () {
    const recordPermission = await PermissionsAndroid.check(
      PermissionsAndroid.PERMISSIONS.RECORD_AUDIO
    );

    if (!recordPermission) {
      let granted;
      try {
        granted = await PermissionsAndroid.request(
          PermissionsAndroid.PERMISSIONS.RECORD_AUDIO
        );

        if (granted === PermissionsAndroid.RESULTS.GRANTED) {
          console.log('You can use the mic');
        } else {
          console.log('Mic permission denied');
        }
      } catch (err) {
        console.log(err);
      }
    }
  };



useEffect(()=>{
const options: Options = {
  sampleRate: 16000,
  channels: 1,
  bitsPerSample: 16,
  fileName: 'novo.wav',
  fromMic: false,
  saveFile: false,
  audioEmitInterval: 1000
};

ScreenAudioRecorder.init(options);

ScreenAudioRecorder.on('data', data => {
  // your code, data = base64
});
requestPermission () 
},[])


function Record(){
  ScreenAudioRecorder.start();
  // asks permission and if confirmed starts recording
}


function stopRecord(){
 await AudioRecord.stop();
 // stop record, it is promise
}

return(...)

Options

| Name | Description | Default | |------|-----------------------------------|-----------| |sampleRate| Sample Rate in hz. | 44100 | |channels| Channels, 1 = MONO, 2 = STEREO. | 1 | |bitsPerSample| Bits per sample. | 16 | |audioEmitInterval| Interval in miliseconds to receive audio base64 data to "on" event. | 0 | |fileName| Output file name. (Don't forget ".wav") | audio.wav | |fromMic| Record audio from microphone instead of device. For android before 10 even if the option is true, the audio will be captured from the microphone, because android doesn't support. | false | |saveFile | The captured audio must be recorded. | false |

Usage android >= 14

the 2 codes if used together must be separated, and not used together to avoid crashes with android 14 or ++ example if(android >= 14){code2}else {code1}

import ScreenAudioRecorder, { Options } from 'react-native-recorder-audio-system';



useEffect(()=>{


ScreenAudioRecorder.on('data', data => {
  // your code, data = base64
});

},[])


function Record(){
  ScreenAudioRecorder.start();
  // asks permission and if confirmed starts recording
}


function stopRecord(){
 await AudioRecord.stop();
 // stop record, it is promise
}

return(...)

I was forgetting, at least these requirements on the build

    ext {
        buildToolsVersion = "35.0.0"
        minSdkVersion = 29
        compileSdkVersion = 35
        targetSdkVersion = 34
        ndkVersion = "26.1.10909125"
        kotlinVersion = "1.9.24"
    }

License

MIT

Credits/References

code copied from https://github.com/Nilsantos/react-native-screen-audio-recorder