Skip to content

Instantly share code, notes, and snippets.

@bpartridge
Forked from p01/LICENSE.txt
Created July 8, 2012 06:30
Show Gist options
  • Save bpartridge/3069667 to your computer and use it in GitHub Desktop.
Save bpartridge/3069667 to your computer and use it in GitHub Desktop.
Music SoftSynth

Music SoftSynth

On September 26, 2011 Viznut released the Experimental music from very short C programs video on Youtube. Soon people started playing with various formulas and building tools to test them. The time has come for this project and 140byt.es to have a tiny baby.

Behold the 140bytes Music SoftSynth in JavaScript!

See more information and a live demo of the 140bytes Music SoftSynth

function
(
f, // the formula generating the sound
// placeholder arguments
t, // tick
S // header+body of our WAVE PCM
)
{
for
(
t|=
// start with a butchered but working WAVE PCM header
S='RIFF_oO_WAVEfmt '+atob('EAAAAAEAAQBAHwAAQB8AAAEACAA')+'data'
;++t<3e5;
)
// eval and append the next 8bits value of the sound
S+=String.fromCharCode( eval(f) );
// and return the sound
return S
}
function(f,t,S){for(t|=S='RIFF_oO_WAVEfmt '+atob('EAAAAAEAAQBAHwAAQB8AAAEACAA')+'data';++t<3e5;)S+=String.fromCharCode(eval(f));return S}
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2011 Mathieu 'p01' Henri http://www.p01.org/releases/
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.
{
"name": "musicSoftSynth",
"description": "Mathematic formula goes in, music come out.",
"keywords": [
"softsynth",
"audio",
"wave",
"formula",
"music"
]
}
<!DOCTYPE html>
<title>140bytes softsynth</title>
<div>Expected result: <b>music playing, people dancing</b></div>
<script>
var softSynth = function(f,t,S){for(t|=S='RIFF_oO_WAVEfmt '+atob('EAAAAAEAAQBAHwAAQB8AAAEACAA')+'data';++t<3e5;)S+=String.fromCharCode(eval(f));return S}
// kudos to Matthew 'Gasman' Westcott for this catchy tune
var formula = "(t<<3)*[8/9,1,9/8,6/5,4/3,3/2,0][[0xd2d2c8,0xce4088,0xca32c8,0x8e4009][t>>14&3]>>(0x3dbe4688>>((t>>10&15)>9?18:t>>10&15)*3&7)*3&7]&255";
new Audio( 'data:audio/wav;base64,'+ btoa( softSynth( formula ) ) ).play();
</script>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment