Re: bandlimited waveform synthesis [was: Re: Anti Aliasing of Arbitrary Waveforms]

On Wed, 24 Sep 2008 11:55:52 -0700 (PDT), zebra
<ezra@xxxxxxxxxxxxxxxxxx> wrote:


Quite honestly, I think doing the above is great in theory, but
in practice is probably a couple of orders of magnitude more
difficult than generating a band limited signal to begin with.

funny, my interpretation of the OP's first question:

"
What are the common method(s) for preventing aliasing of arbitrary
waveforms generated within a DSP application?
"

somehow became, "how do i generate a nice bandlimited sawtooth?" (or
whatever); which of course was not really the quesiton at all, but it
is still an interesting one (to me...)

so i looked

and found this paper:
http://www.acoustics.hut.fi/dafx08/papers/dafx08_05.pdf


Thank you for that, it looks very interesting.

, which basically looks at integration of pulse trains. seems rather
straightforward, but requires a final DC filtering stage...

i also saw these plugins:
http://blop.sourceforge.net/

which i have yet to check out really.

maybe there are some other ideas...?

thanks

-zeb

.

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