Web Audio API analyser node getByteFrequencyData returning blank array

Question

I\'m trying to access FFT data from the analyser node using analyser.getByteFrequencyData(array) but it seems to return a blank array:

var array         


        

Answer 1

Without seeing more of your code, my best guess is that you have the minDecibels and maxDecibels set to a range that is over the data you're pumping through the analyser, so it's getting zeroed out.