CODEWITHSUNDEEP
androidaudioreact-native
Hajaj
Hajaj

Reputation: 49

Sound metering react-native

Im building a react-native application. Im trying to meter the current sound level (in decibel).

Libraries in use: react-native-audio and react-native-sound.

There is anybody familiar with this feature?

Thank you.

Upvotes: 1

Views: 6662

Answers (2)

Harsh Panchal
Harsh Panchal

Reputation: 836

With the react-native-audio library, you can get the count for the only iOS.

For the currentMetering in Android, you need to customize in a native module. I have updated it add the following things in your package.json file instead of your code. You will get the currentMetering count for the Android as well as iOS.

"react-native-audio": "git+https://github.com/Harsh2402/react-native-audio.git",

Upvotes: 5

Ryan Turnbull
Ryan Turnbull

Reputation: 3934

You can use react-native-audio currentMetering value - in order to get the sound level in real-time.

First, you will have to initialise your recorder (which i will assume youve done). I use prepareRecordingAtPath in a similar way to below

AudioRecorder.prepareRecordingAtPath(audioPath, {
  SampleRate: 22050,
  Channels: 1,
  AudioQuality: "Low",
  AudioEncoding: "aac",
  MeteringEnabled: true
});

then once you've called AudioRecorder.startRecording(); (Note you have access to .pause() and .stop() methods also

Now for handling the audio level, you are going to have to retrieve the data that is returned by the onProgress method. From what i remember, there should be some currentMetering value that you can access. Note that defining this behaviour will trigger the action every time a different decibel reading is retrieved. Like so

AudioRecorder.onProgress = data => {
    let decibels = Math.floor(data.currentMetering);

    //DO STUFF
  };

Hope this helps,

Upvotes: 3

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