audio_io 0.3.0

Very simple interface to provide a stream of audio data for processing/visualising in Flutter

0.0.1

Kiss release Input from mic at fixed sample rate and buffer size, no output

0.0.2

Kiss MVP release

Input from mic at fixed sample rate and buffer size, output fixed at mono at the same sample rate as input. Simple quick and dirty ringbuffer for output (needs optimisation)

0.0.3

Bugfix Fix 32-64bit mismatch of data.

0.0.4

Improvement Allow muliple listeners on audio input

0.0.5

Bugfix Thread safety - memory leak fixed :)

0.0.6

Improvement Main thread call for sink removed (attempt to reduce latency introduced in 0.0.5)

0.0.7

Rollback 0.0.6

0.0.8

Improvement Handle audio session changes Reset audio when entering foreground

0.0.9

Improvement Handle audio interruptions Using simpler binary message system to send data (2x cpu optimisation) Replaced invoking method with binary message for output audio Less format conversions when sending data in and out Prep work for upcoming buffer and samplerate selection features

0.1.0

New Interface Added inteface for getting format and buffer size selection (audio frame size) Using serial queue for read and writes to buffer

0.1.1

Performance Fixing Dart side audio format to double (everything is 64bit these days, 64bit is great for processing) Optimised data conversion

0.1.2

Bugfix Fix bug which stopped audio when coming back from background

0.1.3

Bugfix Fixed issue with route swapping from speaker to headphones

0.1.4

Bugfix Better way to detect changes in audio format, removed old methods

0.1.5

Bugfix Using detected input sample rate rather than fixed sample rate

0.1.6

Cleanup Added null safety

0.1.7

Performance improvement

0.1.8

Fix dangling pointer

0.1.9

Small performance improvement Remove fonts from example Bump SDK version

0.2.0

Major Update

• Added macOS platform support with full audio input/output capabilities
• Updated minimum SDK requirements: Dart >=3.4.0, Flutter >=3.22.0
• Fixed ring buffer infinite recursion bug in macOS implementation
• Added proper entitlements configuration for macOS microphone access
• Updated documentation with platform-specific setup instructions
• Improved cross-platform compatibility

0.3.0

Multi-Platform Release

• Added Android platform support using miniaudio C++ library via FFI
• Added Web platform support using Web Audio API
• Added Linux platform support using miniaudio via FFI
• Added Windows platform support using miniaudio via FFI
• Implemented configurable audio latency (Realtime/Balanced/Powersave modes)
• Added real-time volume meter visualization in example app
• Standardized data format across all platforms (Float64, 48kHz, mono)
• Fixed microphone permissions handling on Android
• Improved FFI implementation with proper memory management
• Added comprehensive .gitignore for C/C++ build artifacts
• Fixed all analyzer warnings and improved code quality
• Updated minimum SDK requirements: Dart >=3.0.0, Flutter >=3.10.0

Platform Support:

• iOS ✅ (Native Swift/AVAudioEngine)
• macOS ✅ (Native Swift/AVAudioEngine)
• Android ✅ (FFI/miniaudio)
• Web ✅ (Web Audio API)
• Linux ✅ (FFI/miniaudio)
• Windows ✅ (FFI/miniaudio)