Re: [LAU] Zyn and the art of jack audio/midi

From: Atte Andre Jensen <atte.jensen@email-addr-hidden>
Date: Sat Aug 01 2009 - 16:16:34 EEST

Fons Adriaensen wrote:

> ISTR (but it's years ago - since the LAC where Zyn was
> first presented) that Zyn uses FFT based processing for
> some of its algorithms. If this is the case and the FFT
> size has to be some minimal value then there's a problem
> if the jack period is shorter.

I don't know if such a problem is the case with zyn, but when I specify
the -b 128 everything is just fine. To me it simply seems like a
user-unfriendly design, where you must specify the buffer size on the
command line, when theres actually one on possibility, namely the buffer
size of the running jack server.

I imagine this stems from zyn starting as a non-jack application,
probably even OSS only, where it makes sense to specify the buffer size
on the command line. Then I imagine that later when jack support was
hacked into the thing, the code wasn't really structured in a way to
make it easy to detect buffersize of a running jack server. This would
fit with what cal wrote: "I've certainly thought about how to relocate
zyn's application of those parameters until after initialising the
audio, but I haven't tackled that monster yet".

-- 
Atte
http://atte.dk   http://modlys.dk   http://virb.com/atte
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Received on Sat Aug 1 20:15:02 2009

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