[sdiy] Sample&Hold thoughts

Paul Maddox Paul.Maddox at wavesynth.com
Tue Mar 13 23:48:56 CET 2001


Harry,

> You will have a problem with aliasing, the undersampling of
> the audio will make weird difference tones. think ring modulator
> type sounds...

HEY!!!
Who said aliasing was a problem, I own a PPG Wave 2.2, I love aliasing..
anyway, listen to my monowave samples, if you de-res it you get some lovelly
aliasing effects...

> I'd use a good parallel A/D converter (12-16 bit), clocked at maybe a
fixed
> 44khz rate... then feed it to a D/A converter (12-16 bit) but
> add switches to selectively disable bits starting with the LSB...

Ive often thought about playing with an ADC/DAC pair..

Take the ADC's outputs , swap them around a little and feed them into a
DAC..
kewl way of makeing funky new waveforms from a regular waveform..
Probably sound cack though :-)

Paul





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