[PD] [Bulk] band limited (anti-alias) techniques

Alessio Degani alessio.degani at ymail.com
Tue Nov 24 11:27:49 CET 2015

On 24/11/2015 02:30, Alexandre Torres Porres wrote:
> hi, I know about the oversampling + filtering technique, which you can 
> patch it, but what are other techniques for creating band limited 
> signals you people know (not only those you could do it as a pd 
> patch)? Yes, I'm thinking about oscillators mostly.


There are some bandlimited signal generation techniques.
The most famous are
- BLIT (BandLimited Impulse Train - 
https://ccrma.stanford.edu/~stilti/papers/blit.pdf). The idea is that 
you generate a bandlimited impulse train at a give frequency and then 
you create the classic waveforms by means of integration
- BLEP (BandLimited stEP - 
http://www.cs.cmu.edu/~eli/papers/icmc01-hardsync.pdf). The concept is 
the same but it use bandlimited step function. It also provide a means 
for hard synch between generators/oscillators (actually I think it was 
conceived fot that reason).



> thanks
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