DJ Practice Studio

DJ Practice Studio is a browser-based two-deck mixer simulator intended for aspiring DJs and educators. It models a practical practice environment with two selectable tracks, tempo controls, key metadata, cue points, and a crossfader. The focus is on building familiarity with the mechanics of a live mix without requiring external DJ hardware.

Core capabilities include per-deck BPM input, optional tempo sync to a master BPM, track metadata handling, and real-time crossfader positioning. When tempo_sync is enabled, the tool calculates proportional playback rate adjustments to keep beat alignment between decks. It also records basic mix state, such as current positions and cue points, to support iterative practice sessions.

The tool outputs a portable mixed preview reference (a URI or data stream) and a summary of deck states. It validates inputs (e.g., supported audio formats, reasonable BPM ranges) and surfaces transparent results to the user without editing the source files. It is designed for educators to demonstrate concepts and for students to rehearse sets.

Use cases span beginner training, class demonstrations, and personal practice. It differentiates itself with explicit beat-matching logic, a simplified but clear crossfader workflow, and a workflow focused on clarity and repeatability rather than production-grade effects.