[PD] average Signal block by block
Andreas
B-Andreas at web.de
Fri Dec 8 15:52:57 CET 2006
Georg Holzmann schrieb:
> Hallo!
>
>> to explain it with an example imagine a sine Signal of appropriate
>> frequency (like 44100/1024 Hz to fit into a 1024-array) with some
>> added white noise
>> with maverage~ the result would be 0
>> with the average function i need the result would be a clear sine
>> without noise (if you average over enough blocks)
>
> hm, I don't know if I understand what you want, but maybe you want to
> only leave correlated signals ?
>
> E.g. noise is highly uncorrelated ...
>
>> i tried to realize it with the FIR~ object and an array with all
>> values set to 1 ... and it seemed to work
>> greater array leads to a average of more blocks, but the FIR~ object
>> does some weird things, like shifting my signal which makes it not
>> usable for me
>
> okay, I understand ...
ok, now i know why FIR~ didn't work for me, the delay is in samples not
in blocks (of course) so what i need is a patch with something like that
(for a blocksize of 1024)
|inlet~|
|\ \ \
||z~ 1024| |z~ 2048| |z~ 3072| ... (n-times)
| / / /
|/ / /
|
|/~ n|
|
|outlet~|
it works this way, but is a bit hard to handle
i appretiate any hints for an easier implementation of this
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