automixer/CHANGELOG.md

Changelog

All notable changes to AutoMixer will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[1.0.0] - 2024-12-11

Added

• Initial release of AutoMixer
• BPM Detection: Automatic tempo detection using music-tempo algorithm
• Beat Synchronization: Alignment of beats between consecutive tracks
• Pitch-Preserving Tempo Adjustment: Time-stretching using FFmpeg rubberband filter
• Smooth Crossfades: Equal-power crossfade mixing between tracks
• CLI Interface: Command-line tool for easy mixing
  • mix command for mixing multiple tracks
  • analyze command for track analysis
  • check command for system requirements verification
• Programmatic API: Full Node.js library for integration
  • AutoMixer class for complete mixing workflow
  • BPMDetector for tempo analysis
  • AudioAnalyzer for metadata extraction
  • PitchShifter for tempo/pitch adjustments
  • TrackMixer for crossfade operations
• Event System: Progress tracking through EventEmitter
• Multiple Crossfade Curves: linear, log, sqrt, sine, exponential

Technical Details

• Uses FFmpeg for audio processing
• Supports MP3, WAV, FLAC, and other common formats
• Node.js 18+ required
• ES Modules support

[Unreleased]

Planned

• Key detection and harmonic mixing
• Automatic intro/outro detection
• Energy-based transition point selection
• Web interface
• Real-time preview
• Batch processing improvements