posted 09 December 2008 07:29            

I think I understand how the structure works but I am completely mystefied by two things and I suspect they are interrelated.

1. The use of a sample player, playing a single cycle, 4096 sample of a ramp waveform.

How is it that a single, 4096 sample ramp waveform can be used to create such smooth frequency sweeps over such a large frequency range, without any stepping effect?

Also, how is it that (apparently) multiple simultaneous sweeps are achieved from this single source?

2. I figure the code in the frequency field of the sample player at the leftmost of the structure has a lot to do with the equation but I cannot understand it at all, it is:

default hz * 4095 / 4096 * 32 + (0.02 * (!Direction / !UpInterval)) hz + (4.77 nn hz * (SignalProcessor sampleRate / 44100) - 4096 samp inverse / 32 / 4095 * 4096) * SignalProcessor sampleRate / 44100

Can anyone tease this apart for me please?