Returns a block of the listener (master)'s spectrum data.

Number of values (numSamples) must be a power of 2. (ie 128256512 etc). Min = 64. Max = 8192. Use window to reduce leakage between frequency bins/bands. Note, the more complex window type, the better the quality, but reduced speed.

Returns a block of the listener (master)'s spectrum data.

Number of values (numSamples) must be a power of 2. (ie 128256512 etc). Min = 64. Max = 8192. Use window to reduce leakage between frequency bins/bands. Note, the more complex window type, the better the quality, but reduced speed.