Recording and analyzing sound

Hi @Gordon,

Adding the two results for one seconds works better for me with 200Hz test.

var p=0, sBuff=new Uint8Array(2), sN=new Uint8Array(2);
function soundTest() {
  var w = new Waveform(512,{doubleBuffer:true,bits:16});
  var a = new Uint16Array(512);
  w.on("buffer", function(buf) {
    a.set(buf);
    E.FFT(a);
    var m=0,n=-1;
    for (var i=50;i<250;i++)if(a[i]>n)n=a[m=i];
    sBuff[p]=m;
    sN[p]=n;
    if(p==1){
      var avgF=E.sum(sBuff);
      var nAvg=E.sum(sN);
      console.log(avgF+"Hz @ "+nAvg);
      p=0;
    } else {
      p=1;
    }
  });
  w.startInput(D2,1024,{repeat:true});
}

Do you know what is the accuracy loss on doubling the input sound compared to the buffer we have for processing ?