Re: [ecasound] what is wrong with this chain setup?

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Subject: Re: [ecasound] what is wrong with this chain setup?
From: Kai Vehmanen (kaiv@wakkanet.fi)
Date: Sun Jan 30 2000 - 12:03:53 EET

On Sat, 29 Jan 2000, Jeremy Hall wrote:

> Running today's CVS build, this is the result. chain 1 gets all the
> traffic, chain 2 doesn't see any signal.
[...]
> [root@pongo praise]# cat cd016-003.fil
> -b:128 -sr:44100 -n:cd016-003 -m:simple
> -a:1,2 -f:s16_le,2,44100 -i cd016-003.mp3

-m:simple is the reason here. Simple-mixmode skips all mixing routines
and processes only the first chain. Hmm, I guess I could add
a safety check that warns about the above situation.

> -a:1 -f:s16_le,2,44100 -o /dev/dsp1
> -a:2 -f:s16_le,2,44100 -o /tmp/out.raw
[...]
> -a:1 -eca:0.07,0.01,0.25,1.00 -ev -ea:57900.00
> -a:2 -eca:0.07,0.01,0.25,1.00 -ev -ea:57900.00
[...]
> I really don't like having to double-specify all the options for separate
> chains like this. It seems to me this is extra work for ecasound to do
> the work twice. Is this the case?

Yes, it has to do more work. Internal chainloops migh help here.

-a:1 -eca:x,x,x,x -ea:xx -o cloop,1
-a:2 -i cloop,1 -o /dev/dsp
-a:3 -i cloop,1 -o out.wav 

-- 
Kai Vehmanen <kaiv@wakkanet.fi> -------- CS, University of Turku, Finland
 . http://www.wakkanet.fi/ecasound/ - linux multitrack audio processing
 . http://www.wakkanet.fi/sculpscape/ - ambient-idm-rock-... mp3/ra/wav

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