white noise meyda

gistfile1.txt

var bufferSize = 4096;
var whiteNoise = ac.createScriptProcessor(bufferSize, 1, 1);
var m = ac.createScriptProcessor(bufferSize,1,1);
whiteNoise.onaudioprocess = function(e) {
    var output = e.outputBuffer.getChannelData(0);
    for (var i = 0; i < bufferSize; i++) {
        output[i] = Math.random() * 2 - 1;
    }
}

let meyda = Meyda.createMeydaAnalyzer({
	"audioContext":ac, // audio context
	"source":whiteNoise, // input
	"bufferSize": bS, // buffer size
	"callback": onFeatureExtracted //callback function
});
// window.source = ac.createMediaStreamSource(e.outputBuffer)
m.onaudioprocess = function(e){
	meyda.start(['amplitudeSpectrum', 'spectralFlatness']); //extract the amplitudeSpectrum
}
whiteNoise.connect(m);
m.connect(ac.destination);