Flutter plugin that can support audio recording and level metering

flutter_audio_recorder

Flutter Audio Record Plugin that supports Record Pause Resume Stop and provide access to audio level metering properties average power peak power(currently for iOS only)

Installation

add flutter_audio_recorder to your pubspec.yaml

iOS Permission

add usage description to plist

<key>NSMicrophoneUsageDescription</key>
<string>Can We Use Your Microphone Please</string>

Usage

Init (run this before start, so we could check if file with given name already exists)

var recorder = FlutterAudioRecorder("file_path.mp4"); // .wav .aac .m4a
await recorder.initialized;

or

var recorder = FlutterAudioRecorder("file_path", audioFormat: AudioFormat.AAC); // or AudioFormat.WAV
await recorder.initialized;
Audio Extension and Format Mapping
Audio Format Audio Extension List
AAC .m4a .aac .mp4
WAV .wav

Start recording

await recorder.start();
var recording = await recorder.current(channel: 0);

Get recording details

var current = await recording.current(channel: 0);
// print(current.status);

You could use a timer to access details every 50ms(simply cancel the timer when recording is done)

new Timer.periodic(tick, (Timer t) async {
        var current = await recording.current(channel: 0);
        // print(current.status);
        setState(() {
        });
      });
Recording
Name Description
path String
extension String
duration Duration
audioFormat AudioFormat
metering AudioMetering
status RecordingStatus
Recording.metering
Name Description
peakPower double
averagePower double
isMeteringEnabled bool
Recording.status

Unset,Initialized,Recording,Paused,Stopped

Pause

await recorder.pause();

Resume

await recorder.resume();

Stop (after stop, run init again to create another recording)

var result = await recorder.stop();
File file = widget.localFileSystem.file(result.path);

Source Credit Url : https://github.com/shadow-app/flutter_audio_recorder