Blackman Window

var size = 512; var blackman = new Float32Array(size); for (var i = 0; i < (size % 2) ? (size+1)/2 : size/2; i++) { blackman[i] = 0.42 - 0.5*Math.cos(2*Math.PI*i/(size-1)) + 0.08*Math.cos(4*Math.PI*i/(size-1)); } for (var i = size/2; i > 0; i--) { blackman[size - i] = blackman[i]; } Array.prototype.slice.call(blackman);

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