cool, I just miss a few bandlimited oscillators in Pd, I'm doing them as patches/abstractions, but I think the best way to go would be to code an external, hopefully it ain't be too tricky and hard, but over my head one way or another :P
2015-11-24 13:22 GMT-02:00 cyrille henry ch@chnry.net:
yes, this can be very efficient when the table is pre computed. using 32 bits int and a 8K sample table, I recently implement a BL saw~ in an arduino due with surprisingly fast and good result.
cheers c
Le 24/11/2015 16:12, Frank Barknecht a écrit :
Hi,
On Tue, Nov 24, 2015 at 01:01:00PM -0200, Alexandre Torres Porres wrote:
Do any of you know the advantages and disadvantages between "*oversampling
- filtering*" and the other techniques?
A big difference is CPU load: the bandlimited oscillators in the rj-library aimed at mobile devices of some years ago use the transition splicing technique because it's one of the fastest. It only needs a simple table lookup in addition to the phasor~ etc. that are running anyway. We even replaced the tabread4~ with tabread~ to save even more CPU.
Ciao
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