Workout Mixer: Adaptive Audio Interval Timer
Precision delta-time workout circuit generator with procedural Web Audio synthesis, interactive SVG beat visualizers, and zero-drift scheduling.
Developing the Workout Mixer demonstrated how multi-track procedural audio scheduling in the Web Audio API can generate dynamic, tempo-synced soundscapes that adapt to interval training intensities. Designing reactive SVG beat meters and tempo controls required strict separation between UI rendering and the low-latency audio hardware clock to avoid timing drift. Implementing smooth gain node crossfades and stereo panners provided seamless transitions between high-energy circuits and ambient recovery phases without acoustic clipping. The project emphasized that procedural sound design combined with clear timer state machines can elevate fitness applications far beyond static recorded playlists.