Audio Kit

A lightweight Audio recorder and player for Flutter, built with Zig, miniaudio.

The native audio engine is compiled for Android CPU architectures and exposed to Flutter through FFI.

Ios will be soon

Features

Audio Recorder

The recorder supports:

• Start recording to a file
• Stop recording
• Pause recording
• Resume recording
• File-based recording output

Start recording

final input = "/path/to/recording.wav";

AudioRecorder.start(input);

Stop recording

AudioRecorder.stop();

Pause / Resume recording

if (AudioRecorder.isPaused) {
  AudioRecorder.resume();
  print("Recording resumed!");
} else {
  AudioRecorder.pause();
  print("Recording paused!");
}

A typical recording flow is:

AudioRecorder.start(input);

// Pause when required
AudioRecorder.pause();

// Resume when required
AudioRecorder.resume();

// Finish recording
AudioRecorder.stop();

---

Audio Player

The player supports:

• Play an audio file
• Pause playback
• Resume playback
• Restart playback from the beginning
• Stop playback

Play

void _play() {
  bool success = AudioPlayer.play(widget.audioFilePath);

  print(widget.audioFilePath);

  if (success) {
    setState(() {
      _isPlaying = true;
      _isPaused = false;
    });
  }

  print("Playback started: $success");
}

Pause

void _pause() {
  AudioPlayer.pause();

  setState(() {
    _isPlaying = false;
    _isPaused = true;
  });

  print("Playback paused");
}

Resume

void _resume() {
  AudioPlayer.resume();

  setState(() {
    _isPlaying = true;
    _isPaused = false;
  });

  print("Playback resumed");
}

Restart

void _restart() {
  AudioPlayer.restart();

  setState(() {
    _isPlaying = true;
    _isPaused = false;
  });

  print("Playback restarted");
}

Stop

void _stop() {
  AudioPlayer.stop();

  setState(() {
    _isPlaying = false;
    _isPaused = false;
  });

  print("Playback stopped");
}

Android CPU / ABI Support

This package currently supports Android devices only.

Native libraries are provided for the following Android ABIs:

jnilibs/
├── arm64-v8a/
├── armeabi-v7a/
└── x86_64/

Supported architectures

ABI CPU

---

arm64-v8a 64-bit ARM armeabi-v7a 32-bit ARM x86_64 64-bit x86

arm64-v8a is recommended for modern Android phones and tablets.

Architecture

The package uses the following stack:

Flutter / Dart
      │
      │ Dart FFI
      ▼
Native Audio API
      │
      │
      ▼
     Zig
      │
      │
      ▼
  miniaudio
      │
      ▼
Android Audio System

Future Development

iOS Support

iOS support is planned as a future development milestone.

If you find any issues, kindly let me know.