[PD] Max Smoother Audio than Pd?
Matteo Sisti Sette
matteosistisette at gmail.com
Sun Mar 28 15:37:36 CEST 2010
Roman Haefeli escribió:
> On Sun, 2010-03-28 at 14:14 +0200, Derek Holzer wrote:
>
>> Generate bandlimited waveforms. Works for lower frequencies, however
>> higher frequencies will still alias...
>
> Why is that? I thought, when just playing so many partials of the
> waveform, so that all of them fit in below the nyquist frequency, there
> won't be any aliasing? Is that wrong?
I don't think it's wrong. Obviously, if you generate only ONE table
(with sinesum for example) with all the partials necessary for using it
at low frequency, and then use it at higher frequencies, it will alias.
But if you use different tables for different frequencies, always
summing only the sines that are below the nyquist frequency, there can't
be any aliasing.
By the way thanks Derek for the link. Now I see why sinesum is _so_
useful (indeed I could/should have seen it before -lol)
--
Matteo Sisti Sette
matteosistisette at gmail.com
http://www.matteosistisette.com
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