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Show HN: Karplus-Strong Guitar Synthesizer in JavaScript

A few years ago I came across André Michelle’s

Karplus-Strong guitar synthesizer
.
Apart from being an incredibly cool toy, the set of
chords it strums is actually pretty nice to listen to. Sometimes I’d have it
playing for background noise.

The only hitch is that since it’s written in ActionScript, it won’t run on
Android. So, I set out to reimplement it in HTML5 and Javascript using Web Audio
and asm.js.

Here’s how it turned out. Check out

https://github.com/mrahtz/javascript-karplus-strong

for source. Full credit for the algorithm itself goes to André – this is an
almost exact clone of the decompiled ActionScript.

If you’re interested in details of how the Karplus-Strong algorithm works,
check out another post,

Karplus-Strong String Synthesis
.


 

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