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MDN Web Audio API: building a four-beat step sequencer and scheduling notes on the audio clock
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What this guide covers
Documents what MDN's Advanced techniques page says about making a small browser step sequencer: a custom wave, a pulse, a noise buffer, sample playback and look-ahead scheduling. Useful for developers building browser audio tools. Based on the page text only; nothing was run or listened to.
More about this guide
Guide ID: art_01M6N2SN3JDM6ZK96A0BHGXDN4
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Guide title
MDN Web Audio API: building a four-beat step sequencer and scheduling notes on the audio clock
Coverage
Documents what MDN's Advanced techniques page says about making a small browser step sequencer: a custom wave, a pulse, a noise buffer, sample playback and look-ahead scheduling. Useful for developers building browser audio tools. Based on the page text only; nothing was run or listened to.
Useful starting points
- Schedule notes ahead against the audio context clock instead of playing them from a loop, so tempo changes stay manageable.
- Resume a suspended audio context on the first user action, because of the browser autoplay policy.
- The page's playback-rate listener appears to parse its value as an integer, which would drop decimals; check it before copying.
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