zipper

var a=0;
export function dsp(time){
  var x=Math.sin((time+Math.sin(time*1.1))*5);
  for(var i=1;i<=19;i++){
    x%=(Math.abs(Math.sin(time*(Math.pow(i,.7)/20)))+.01);
  }
  a=(t=>(a*t)+(x*(1-t)))(0.95)*.5;
  return a*10;
}