Frequency range of AnaylserNode.getFloatFrequencyData()/getByteFrequencyData()

Question

For the AnalyserNode in the Web Audio API, what is the frequency range of the data returned by getFloatFrequencyData() and getByteFrequencyData()? Can I assume the AnalyserNode is simply FFT, making the range zero-to-half-the-sample-rate?

Answer 1

Yes, that's correct. The frequency bins are linearly spread across the frequencies from 0 to 1/2 the sample rate.