~/talk

Mars Needs Guitars.... and the WebAudio API

on YouTube 27m
Talkat Decompress AU 2016 · on Wednesday, 2016-11-30· [creative-coding]

speaker

name:Cathy Lill
website:http://cathylill.net

resources

video:https://youtu.be/XWcLDB-vNKI
slides:none on file

summary

Live guitar input runs entirely through the WebAudio API: a media stream source -> waveShaper with Float32Array sized to context.sampleRate -> low‑pass tone mapped logarithmically -> gain -> destination. Uses an external USB box Roland Duo Capture (~$100 USB soundcard) for instrument I/O, adds compression, and implements bypass by disconnecting nodes. Distortion curve uses the common online algorithm with a tuned constant (18 instead of 20), it proves audible and usable though some noise/latency appears on modest hardware.

AI-written summary · about

chapters (6)

  1. 0:00WebAudio API intro
  2. 4:17Basic guitar pedal
  3. 9:35Distortion with waveshaping
  4. 13:09Tone control: low-pass
  5. 19:16Distortion curves for rock
  6. 25:19Demo and extra effects

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