Subject: Re: [ecasound] panning
From: S. Massy (theanaloguekid@tak.net.dhis.org)
Date: Sat Sep 30 2000 - 17:03:48 EEST
On Sat, 30 Sep 2000, Kai Vehmanen wrote:
> On Fri, 29 Sep 2000, S. Massy wrote:
>
> >> ecasound -c -b:1024 -a:1 -f:16,1,44000 -i sound1.wav -epp:10 -a:2
> >> -f:16,1,44000 -i sound2.wav -epp:90 -a:all -o /dev/dsp
> > I really don't know, I just tried the same command, with different
> > filenames of course, and it worked just fine. I'm using the latest CVS
> > version so it might be that you encountered a bug in the stable
>
> Are you sure? The above command opens /dev/dsp in 16,1,44100
> (ie. mono!) mode, so you shouldn't here any difference between
> left and right channels.
Wow, first I hadn't noticed it had been opened in mono, I had simply cut & pasted the command, but YES, it worked, is that a bug in ALSA's OSS emulation? Cos AFAIK it's NOT supposed to work!
>
> Btw; what do you think, is the -epp currently too unintuitive? One
> possibility would be to add automatic -erc to the effect.
> So if you tried to use stereo-pan on a mono stream, it would
> first create a duplicate channel (ie. -erc:1,2), and then apply
> the panning. Hmm, of course, I also have to think about possible
> performance issues.
Well, I've never had any trouble with panning myself; this idea could make it nicer still...
>
> --
> . http://www.eca.cx ... [ audio software for linux ] /\ .
> . http://www.eca.cx/sculpscape [ my armchair-tunes mp3/ra/wav ]
>
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