[moron]

The SoundMixer.computeSpectrum() method returns frequency spectrum data rather than waveform data if the FFTMode parameter is set to true. The frequency spectrum shows amplitude arranged by sound frequency, from lowest frequency to highest. A Fast Fourier Transform (FFT) is used to convert the waveform data into frequency spectrum data. The resulting frequency spectrum values range from 0 to roughly 1.414 (the square root of 2).