Web Tracker - Screamtracker-like Audio Editor

This project is a web-based audio editor inspired by Scream Tracker.

Screenshot

Features

• Pattern Editor: Multi-channel (4), multi-row (64) grid interface.
• Keyboard Note Input: Enter notes using standard keyboard keys (ZSXDCV... for octave 4, Q2W3ER... for octave 5).
• Sample Support:
  • Load external audio samples (WAV, MP3, etc.).
  • Includes default oscillator samples (Sine, Square, Sawtooth, Triangle).
  • Select samples using number keys (1-9) or clicking the list.
• Playback:
  • Play the full song sequence or individual patterns.
  • Adjustable BPM (Beats Per Minute).
  • Play/Stop controls (Spacebar toggles playback).
• Sequencing: Arrange patterns into a song structure.
• Effects: Basic tracker effects implemented:
  • 0xy: Arpeggio
  • 1xx: Portamento Up
  • 2xx: Portamento Down
  • Axy: Volume Slide
  • Cxx: Set Volume
• Local Storage: Save and load songs directly in the browser.

Usage

Open index.html in your web browser to start using the tracker.

TODO

• Implement more standard tracker effects (Vibrato, Tremolo, Panning, Sample Offset).
• Add instrument features (e.g., volume/panning envelopes, sample looping).
• Implement file export/import functionality (buttons exist but are not functional).
• Improve UI/UX (visual feedback for effects, better sample management, sequence editing enhancements).
• Enhance audio engine (channel panning, master volume, filters).
• Persist loaded audio sample data within saved songs (currently only saves default oscillator types).
• Add more keyboard shortcuts for editing.
• Write more detailed documentation/help.