Simple Multitrack Recorder

September 1, 2025 · View on GitHub

A user-friendly 8-track audio recorder designed for elderly users who want to record music without complex setup or configuration.

Features

  • 8 Independent Tracks - Record up to 8 separate audio tracks
  • Simple Interface - Large buttons and clear labels optimized for accessibility
  • USB Microphone Support - Automatic detection of USB microphones (tested with Fifine brand)
  • One-Click Recording - Arm a track and hit record - no complex configuration
  • Basic Mixing Controls - Mute, Solo, and Clear functions for each track
  • Built-in Metronome - Adjustable tempo (60-200 BPM)
  • Project Management - Save and load recording sessions
  • No Advanced Editing - Focused on simple recording workflow

System Requirements

  • Windows 10 or 11 (recommended)
  • Python 3.7+ (for source installation)
  • USB Microphone (any USB audio input device)
  • 4GB RAM minimum
  • 1GB free disk space

Quick Start (Executable)

  1. Download the MultitrackRecorder.exe file
  2. Double-click to run (no installation needed)
  3. Connect your USB microphone
  4. Start recording!

Installation from Source

Automatic Setup

  1. Download all the Python files to a folder
  2. Optional: Place a cowbell.mp3 file in the root folder for custom metronome sound
  3. Run the setup script: 
    python setup.py
  4. Follow the prompts to install dependencies and create executable

Manual Setup

  1. Install Python dependencies:

    pip install sounddevice soundfile numpy

  2. Create directories:

    mkdir recordings projects

  3. Run the application:

    python main.py

How to Use

Basic Recording Workflow

  1. Connect Microphone - Plug in your USB microphone
  2. Arm Track - Click the "ARM" button on the track you want to record to
  3. Start Recording - Click the main "RECORD" button
  4. Record Your Audio - Perform into the microphone
  5. Stop Recording - Click "RECORD" again to stop
  6. Repeat - Arm a different track and record additional parts

Playback Controls

  • PLAY - Start/pause playback of all recorded tracks
  • STOP - Stop playback and return to beginning
  • RECORD - Start/stop recording to the armed track

Track Controls

Each track has these controls:

  • ARM - Select this track for recording (only one can be armed at a time)
  • MUTE - Silence this track during playback
  • SOLO - Play only this track (mute all others)
  • CLEAR - Delete the recording from this track (asks for confirmation)

Metronome

  • ON/OFF - Enable/disable metronome clicks
  • BPM +/- - Adjust tempo between 60-200 beats per minute
  • The metronome plays during both recording and playback

Project Management

Projects are automatically saved in the projects folder. Audio files are stored in the recordings folder.

Tips for Best Results

  1. Test Your Microphone First - Arm a track, record a short test, and play it back
  2. Use Headphones - Prevents microphone from picking up playback audio
  3. Record Dry Signal - Don't use microphone built-in effects; keep it simple
  4. One Take Per Track - Recording to an armed track replaces any previous recording
  5. Save Frequently - Projects auto-save, but manual saves are recommended

Troubleshooting

No Audio Input

  • Check USB microphone is connected and recognized by Windows
  • Try unplugging and reconnecting the microphone
  • Check Windows sound settings to ensure microphone is working

Audio Dropouts

  • Close other programs that might use audio
  • Try increasing buffer size by restarting the application
  • Ensure microphone USB cable is secure

Application Won't Start

  • Verify Python installation and dependencies
  • Check that all required files are in the same folder
  • Run from command prompt to see error messages

Poor Audio Quality

  • Check microphone positioning (6-12 inches from source)
  • Ensure room is reasonably quiet
  • Verify microphone is not muted in Windows settings

File Structure

MultitrackRecorder/
├── main.py              # Application entry point
├── audio_engine.py      # Core audio handling
├── track_manager.py     # Track state management
├── ui_controller.py     # User interface
├── project_manager.py   # File management
├── setup.py            # Installation script
├── requirements.txt    # Python dependencies
├── README.md          # This file
├── recordings/        # Audio files directory
└── projects/         # Project files directory

Technical Details

  • Audio Format: 44.1kHz, 16-bit WAV files
  • Latency: Optimized for low-latency recording and playback
  • Threading: Uses separate threads for audio processing and UI updates
  • Memory Usage: Loads entire tracks into memory for smooth playback

Limitations

  • No Audio Editing - This is a recorder, not an editor
  • No Effects - No reverb, EQ, or other audio processing
  • No MIDI - Audio recording only, no MIDI support
  • No Punch Recording - Can't record over specific sections
  • Track Length - Limited by available system memory

Support

This software is provided as-is for elderly users who want simple multitrack recording. For technical issues:

  1. Check this README for solutions
  2. Verify all requirements are met
  3. Test with a different USB microphone if available

License

Free for personal use. Created to help elderly musicians record their music with minimal technical barriers.