H-DJ is a drag-and-drop DJ application that lets you smoothly transition between .mp3 tracks with beat-aware crossfades, BPM + Music key analysis, live waveform display.
- 📂 Drag & drop your music folder into the app — no terminal needed
- 🧠 Automatic BPM detection using audio analysis (
librosa) - 🎼 Musical Key notation detection for harmonic mixing
- 🎚️ 15-second crossfade transitions for seamless track blending
- 📊 Waveform visualization of currently playing track
- ⏱️ Live time counter showing current playback time
- 🔈 Volume sliders per channel (Channel A / B)
- 🌀 Auto-sorts tracks by BPM and Key for energy flow
- ⏯️ Pause / Play toggle button
- 👆 Clickable "Next Track" button or press
SPACEto transition - 🎧 Stylized UI with real-time song loading feedback
- Python 3.8+
- ffmpeg (required by
librosafor decoding mp3s)
pip install -r requirements.txt