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Description:

flutter sound record

flutter_sound_record #
Audio recorder from microphone to a given file path forked from and based on https://github.com/llfbandit/record.
No external dependencies, MediaRecorder is used for Android and AVAudioRecorder for iOS.
Options #

bit rate (be careful with this one on iOs)
sampling rate
encoder

Platforms #
Android #
<uses-permission android:name="android.permission.RECORD_AUDIO" />

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
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min SDK: 16 (29 if you use OPUS)
iOs #
<key>NSMicrophoneUsageDescription</key>
<string>We need to access to the microphone to record audio file</string>
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min SDK: 8.0 (11 if you use OPUS)
Supported encoders #

enum AudioEncoder {
/// Will output to MPEG_4 format container
AAC,

/// Will output to MPEG_4 format container
AAC_LD,

/// Will output to MPEG_4 format container
AAC_HE,

/// sampling rate should be set to 8kHz
/// Will output to 3GP format container on Android
AMR_NB,

/// sampling rate should be set to 16kHz
/// Will output to 3GP format container on Android
AMR_WB,

/// Will output to MPEG_4 format container
/// /!\ SDK 29 on Android /!\
/// /!\ SDK 11 on iOs /!\
OPUS,
}
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Android #
https://developer.android.com/reference/android/media/MediaRecorder.AudioEncoder
iOs #
https://developer.apple.com/documentation/coreaudiotypes/coreaudiotype_constants/1572096-audio_data_format_identifiers
Usage #
// Import package
import 'package:record/record.dart';

// Check and request permission
bool result = await Record.hasPermission();

// Start recording
await Record.start(
path: 'aFullPath/myFile.m4a', // required
encoder: AudioEncoder.AAC, // by default
bitRate: 128000, // by default
sampleRate: 44100, // by default
);

// Stop recording
await Record.stop();

// Get the state of the recorder
bool isRecording = await Record.isRecording();

// There's nothing to dispose, this done internally each time you call stop method.
// The plugin is aware of activity lifecycle.
// So exiting, your app or activity will stop the recording (but won't delete the
// output file).
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Warnings #
Be sure to check supported values from the given links above.
Known issues #
None.