On Thu, 26 Oct 2006, hard off wrote:
i just made a synth which makes some really nice tones when i feed it really high frequencies. (midi notes 150-300) question is, will this sound the same on all computers, or do different systems handle such high frequencies differently?
Every change in your soundcard's sampling rate will make a tremendous difference to how it sounds. Everything that you do with frequencies that high rely on a moiré effect between the sound and the sampling itself.
Putting all your oscillators in a subpatch with a set downsampling or upsampling will shield you from some of the variability from soundcard to soundcard, because 48 kHz and 96 kHz are a power of two away. However, Pd doesn't allow you to correct the difference between 44.1 kHz and 48 kHz, because it isn't a power of two; and generally speaking, because 44.1/48 simplifies as 147/160, any resampling between those two frequencies will be difficult (because it isn't an easy fraction to deal with).
_ _ __ ___ _____ ________ _____________ _____________________ ... | Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju | Freelance Digital Arts Engineer, Montréal QC Canada