Jatin K MalikandGitHub b5e1d61d17 Fix: Audio detection issues - Add device selection and testing (#55)
* Fix audio detection issues (#34)

This commit addresses the audio detection issues reported in GitHub issue #34
where users on various Linux distributions (Fedora, Ubuntu with Wayland)
were unable to get voice recognition working despite their microphones
functioning in other applications.

Changes:
- Add audio input device enumeration and selection
  - New get_audio_input_devices() function lists all available input devices
  - Users can now select which microphone to use in Settings

- Add audio diagnostics and testing
  - New test_audio_input() function for testing microphone input
  - Test Mic button in Settings to verify audio is being captured
  - Audio level bar shows real-time input levels

- Improve audio debugging/logging
  - Log available audio devices on startup
  - Log which device is being used
  - Periodic audio level logging during recording
  - Warning when no speech detected and max level is very low
  - Log when speech is first detected with threshold info

- Add audio device configuration
  - Audio device selection persisted to config file
  - Device loaded on startup from saved config

- Better error handling
  - Graceful handling of audio stream open failures
  - Clear error messages when audio devices are unavailable

The root cause for many users was that PyAudio's default device selection
may not match the system's default input, especially on systems using
PipeWire or complex audio routing. Users can now explicitly select their
microphone and test it before using voice recognition.

* Fix circular import in speech_recognition module

Move lazy imports for get_audio_input_devices and test_audio_input
to avoid circular dependency when settings_dialog imports from
speech_recognition at module load time.

* Fix audio detection issues with device selection

- Add audio device enumeration and selection in Settings
- Add microphone test button with audio level indicator
- Improve VAD logging with periodic audio level output
- Add warning when no speech detected with low audio levels
- Store audio device preference in config

Fixes #34

* Fix linting issues - remove unused imports, fix module-level imports, format code

* Fix remaining linting issues - add type hints back, fix whitespace, add noqa comments

* Fix final linting issue - break long line in config_manager

* Fix formatting - use black formatting, align flake8 line-length with black (100)

* Fix CI test failures: Update mocks and assertions

* Fix audio feedback mock tests for CI

- Move audio feedback imports to top of recognition_manager.py (remove lazy imports)
- Add shared mock_audio_feedback in conftest.py for consistent mocking across tests
- Update test_recognition_manager.py and test_speech_recognition.py to use shared mock
- Fixes test_start_stop_recognition, test_start_recognition, test_stop_recognition
2026-01-19 23:49:39 -08:00
2025-12-28 21:43:57 -08:00
2025-05-25 23:20:08 -05:00
2025-12-28 21:43:57 -08:00

Vocalinux

Voice-to-text for Linux, finally done right!

Status: Alpha GitHub release License: GPL v3

Vocalinux CI Platform: Linux Python 3.8+ Made with GTK codecov

GitHub stars GitHub forks GitHub watchers Last commit Commit activity Contributions welcome GitHub issues

Vocalinux Users

A seamless free open-source private voice dictation system for Linux, comparable to the built-in solutions on macOS and Windows.

🎉 Alpha Release!

We're excited to share Vocalinux with the community. Try it out and let us know what you think!


✨ Features

  • 🎤 Double-tap Ctrl to start/stop voice dictation
  • ⚡ Real-time transcription with minimal latency
  • 🌎 Universal compatibility across all Linux applications
  • 🔒 Offline operation for privacy and reliability (with VOSK)
  • 🤖 Optional Whisper AI support for enhanced accuracy
  • 🎨 System tray integration with visual status indicators
  • 🔊 Audio feedback for recording status
  • ⚙️ Graphical settings dialog for easy configuration

🚀 Quick Install

curl -fsSL https://raw.githubusercontent.com/jatinkrmalik/vocalinux/main/install.sh | bash

This will:

  • Clone the repository to ~/.local/share/vocalinux-install
  • Install all system dependencies
  • Set up a virtual environment in ~/.local/share/vocalinux/venv
  • Install both VOSK and Whisper AI speech engines
  • Create a symlink at ~/.local/bin/vocalinux
  • Download the default Whisper tiny speech model (~75MB)

⏱️ Note: Installation takes ~5-10 minutes due to Whisper AI dependencies (PyTorch).

Without Whisper (faster install, VOSK only):

curl -fsSL https://raw.githubusercontent.com/jatinkrmalik/vocalinux/main/install.sh | bash -s -- --no-whisper

Alternative: Install from Source

# Clone the repository
git clone https://github.com/jatinkrmalik/vocalinux.git
cd vocalinux

# Run the installer (will prompt for Whisper)
./install.sh

# Or with Whisper support
./install.sh --with-whisper

The installer handles everything: system dependencies, Python environment, speech models, and desktop integration.

After Installation

# If ~/.local/bin is in your PATH (recommended):
vocalinux

# Or activate the virtual environment first:
source ~/.local/bin/activate-vocalinux.sh
vocalinux

# Or run directly:
~/.local/share/vocalinux/venv/bin/vocalinux

Or launch it from your application menu!

Uninstall

# If installed via curl:
curl -fsSL https://raw.githubusercontent.com/jatinkrmalik/vocalinux/main/uninstall.sh | bash

# If installed from source:
./uninstall.sh

📋 Requirements

  • OS: Ubuntu 22.04+ (other Linux distros may work)
  • Python: 3.8 or newer
  • Display: X11 or Wayland
  • Hardware: Microphone for voice input

🎙️ Usage

Voice Dictation

  1. Double-tap Ctrl to start recording
  2. Speak clearly into your microphone
  3. Double-tap Ctrl again (or pause speaking) to stop

Voice Commands

Command Action
"new line" Inserts a line break
"period" / "full stop" Types a period (.)
"comma" Types a comma (,)
"question mark" Types a question mark (?)
"exclamation mark" Types an exclamation mark (!)
"delete that" Deletes the last sentence
"capitalize" Capitalizes the next word

Command Line Options

vocalinux --help              # Show all options
vocalinux --debug             # Enable debug logging
vocalinux --engine whisper    # Use Whisper AI engine
vocalinux --model medium      # Use medium-sized model
vocalinux --wayland           # Force Wayland mode

⚙️ Configuration

Configuration is stored in ~/.config/vocalinux/config.json:

{
  "speech_recognition": {
    "engine": "vosk",
    "model_size": "small",
    "vad_sensitivity": 3,
    "silence_timeout": 2.0
  }
}

You can also configure settings through the graphical Settings dialog (right-click the tray icon).

🔧 Development Setup

# Clone and install in dev mode
git clone https://github.com/jatinkrmalik/vocalinux.git
cd vocalinux
./install.sh --dev

# Activate environment
source venv/bin/activate

# Run tests
pytest

# Run from source with debug
python -m vocalinux.main --debug

📁 Project Structure

vocalinux/
├── src/vocalinux/           # Main application code
│   ├── speech_recognition/  # Speech recognition engines
│   ├── text_injection/      # Text injection (X11/Wayland)
│   ├── ui/                  # GTK UI components
│   └── utils/               # Utility functions
├── tests/                   # Test suite
├── resources/               # Icons and sounds
├── docs/                    # Documentation
└── web/                     # Website source

📖 Documentation

🗺️ Roadmap

  • Custom icon design ✅
  • Graphical settings dialog ✅
  • Whisper AI support ✅
  • Multi-language support
  • Application-specific commands
  • Debian/Ubuntu package (.deb)
  • Improved Wayland support
  • Voice command customization

🤝 Contributing

We welcome contributions! Whether it's bug reports, feature requests, or code contributions, please check out our Contributing Guide.

⭐ Support

If you find Vocalinux useful, please consider:

  • ⭐ Starring this repository
  • 🐛 Reporting bugs you encounter
  • 📖 Improving documentation
  • 🔀 Contributing code

📜 License

This project is licensed under the GNU General Public License v3.0 - see the LICENSE file for details.


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Free, offline voice dictation for Void Linux and niri. Vulkan GPU acceleration, signed xbps repository.
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