New #Audio dweets

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) {

t||(a=new(AudioContext)(),o=a.createOscillator(),o.connect(a.destination),o.start(a));t%.2>.1?b=Math.random()*1000|0:o.detune.value=b

Mar 3 2017 12:01 PM UTC

}// 133/140

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Remove a from o.start(a) .... this one is based on iverjos small size version.

u/13thptr

#audio

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hamptonio

remix of d/1763 by u/New_Core

function u(t) {

if(!t)a=new(window.AudioContext)(),o=a.createOscillator(),o.connect(a.destination),o.start(a);o.detune.value=220*S(t+S(t*t))

Mar 2 2017 9:26 PM UTC

}// 124/140

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Remove "a" from "o.start(a)" to begin the annoyance. This golfing tweak to New_Core's should allow for more complexity to be added...

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u/iverjo

116 characters: if(!t)a=new(AudioContext)(),o=a.createOscillator(),o.connect(a.destination),o.start();o.detune.value=220*S(t+S(t*t))
u/iverjo

115 characters: t||(a=new(AudioContext)(),o=a.createOscillator(),o.connect(a.destination),o.start());o.detune.value=220*S(t+S(t*t))
u/iverjo

Room for 25 more characters of fun! :D
u/hamptonio

if(!t){a=new(AudioContext)();o=[];for(i=6;i--;){q=o[i]=a.createOscillator();q.connect(a.destination);q.start()}}o[t%6|0].detune.value+=S(t)
u/hamptonio

multivoice above
u/iverjo

#audio

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iverjo

remix of d/1763 by u/New_Core

function u(t) {

if(!t)a=new(window.AudioContext)(),o=a.createOscillator(),o.type='square',o.connect(a.destination),o.start(a);o.frequency.value=800*S(t)

Mar 2 2017 6:43 PM UTC

}// 136/140

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Remove the a in o.start(a) to start the anoying thing xD

u/iverjo

#bartjs
u/iverjo

Warning: The sound may be louder than you expect
u/iverjo

Looks like it doesn't work in Firefox
u/iverjo

#audio
u/joeytwiddle

#police

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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

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