ODP: DCO's, Anti-Aliasing, and Filters

[Roman Sowa]

I didn't express myself clearly.
By reading sample faster I ment reading not every sample
at constant sampling frequency, which gives higher pitch.
It causes aliasing, although not always noticable, but we were
arguing about it a while ago...

Reading say, 256 sample waveform at variable sampling frequency
and hooking up 1/50 frequency corner SC filter clocked
with e.g. 16x wavetable address clock - yes, now I see it.

But then you need very high speed VCO for driving this.

Roman

> -----Oryginalna wiadomość-----
> Od:	J. Larry Hendry [SMTP:jlarryh at iquest.net]
> Wysłano:	3 grudnia 1998 01:42
> Do:	synth-diy at mailhost.bpa.nl
> Temat:	Re: DCO's, Anti-Aliasing, and Filters
> 
> > From: Roman Sowa <rsowa at WizjaTV.pl>
> > Aliasing comes from reading sample faster than it was recorded
> > (i.e. for playing it at higher pitch)
> 
> Doesn't that come from playing the sample slower for a lower pitch?
> Larry Hendry