#Web Audio API

Two rows of beats on one grid: setTimeout drifts up to 2.8 s late, lookahead stays within 0.01 ms. Headline: Right in code. Late in the room.

Browser CreativeAbdullah Chaudary10 October 202611 min read

Web Audio Scheduling Drift: Right in Code, Late in the Room

A Web Audio metronome on setTimeout drifts because the JavaScript timer and the audio clock are two clocks. A lookahead scheduler on currentTime fixes it, measured before and after.

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Web Audio Scheduling Drift: Right in Code, Late in the Room