remove the a in o.start(a) to start th… by New_Core

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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New_Core

function u(t) {

if(!t)a=new(window.AudioContext)(),o=a.createOscillator(),o.type='sine',o.connect(a.destination),o.start(a);o.frequency.value=400*S(t);

Mar 2 2017 2:06 PM UTC

}// 135/140

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remove the a in o.start(a) to start the anoying thing ;) I did it like this so it dont bother the site to much...

u/iverjo

Haha, this is awesome xD
u/joeytwiddle

Thanks for this nice mini introduction to the Audio API. I remixed it into a theramin: https://www.dwitter.net/d/2446
u/iverjo

#audio


      u(t) is called 60 times per second.
      t: elapsed time in seconds.
      c: A 1920x1080 canvas.
      x: A 2D context for that canvas.
      S: Math.sin
      C: Math.cos
      T: Math.tan
      R: Generates rgba-strings, ex.: R(255, 255, 255, 0.5)

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