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

What are the odds that one of you got the data before playback started, so there was nothing to read yet? If that might be the case, try to call getByteFrequencyData after playback is started.