field notes from the edge of web audio
The browser, but as a DAW — Waveform Playlist, Mastering Tone.js, and a growing pile of openDAW experiments.
React + Tone.js components for multi-track audio and MIDI in the browser. Canvas waveforms and spectrograms, cues, fades, effects, recording, annotations, AudioBuffer / WAV export. Also published as Web Components for framework-free embedding.
The math behind tempo maps and warp markers, taught in code. Six chapters working through closed-form tempo regimes, real audio playback, meter, and repairing messy beat-detection data — closed-form where possible, numerical integration where not.
Mastering Tone.js — a guide to interactive audio in the browser
The canonical primer on look-ahead scheduling — why setTimeout alone won't keep a sequencer in time.
A Wait-Free SPSC Ringbuffer for the Web
Moving audio between the AudioWorklet and the main thread without locks or allocations.
WebCodecs hides encoder priming delay, so Mediabunny measures it at runtime with an impulse signal and keeps audio in sync through hundreds of re-encodes.