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