react-native-pitch-tracker-extended/lib/module/index.js

React Native Pitch Tracker implemented with Tensorflow Lite Model

import { NativeEventEmitter, NativeModules, Platform } from 'react-native';
import { request, PERMISSIONS, RESULTS } from 'react-native-permissions';
const {
  PitchTracker
} = NativeModules;
const eventEmitter = new NativeEventEmitter(PitchTracker);

const askPermission = async () => {
  try {
    let permission = Platform.select({
      android: PERMISSIONS.ANDROID.RECORD_AUDIO,
      ios: PERMISSIONS.IOS.MICROPHONE
    });
    const result = await request(permission);

    if (result === RESULTS.GRANTED) {
      console.log('Microphone Permission Successful');
    }
  } catch (error) {
    console.log('askPermission', error);
  }
};

export default { ...PitchTracker,
  prepare: () => {
    askPermission();
    PitchTracker.prepare();
  },
  noteOn: callback => {
    eventEmitter.addListener('NoteOn', callback);
  },
  noteOff: callback => {
    eventEmitter.addListener('NoteOff', callback);
  }
};
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