Subject: Re: [ecasound] Loops: can someone explain?
From: S. Massy (theanaloguekid@tak.net.dhis.org)
Date: Thu Mar 01 2001 - 04:50:39 EET
On Wed, 28 Feb 2001, ben@slumber.dhs.org wrote:
> Each I/O object can be specified at most once for input and once for
> output. For example, you need to replace
>
> > -a:2 -f:s16_le,2,44100 -i:loop,0,0
> > -a:3 -f:s16_le,2,44100 -i:loop,0,0
>
> with
>
> -a:2,3 -f:s16_le,2,44100 -i:loop,0,0
Silly me! Thanks for that. Now the cs connects fine but I only get
silence, also I noticed something funny:
- [ Chainsetup/Enabling audio inputs ] -------------------------------------
(eca-audio-objects) Audio object "test.wav", mode "read".
(audio-io) Format: s16_le, channels 2, srate 44100, interleaved.
(eca-audio-objects) Audio object "loop,0", mode "read".
(audio-io) Format: s16_le, channels 2, srate 44100, interleaved.
(eca-audio-objects) Audio object "loop,1", mode "read".
(audio-io) Format: s16_le, channels 2, srate 44100, interleaved.
- [ Chainsetup/Enabling audio outputs ] ------------------------------------
(eca-audio-objects) Audio object "loop,0", mode "read".
(audio-io) Format: s16_le, channels 2, srate 44100, interleaved.
(eca-audio-objects) Audio object "loop,1", mode "read".
(audio-io) Format: s16_le, channels 2, srate 44100, interleaved.
(eca-audio-objects) Audio object "alsahw", mode "write".
(audio-io) Format: s16_le, channels 2, srate 44100, interleaved.
Reading when you're supposed to OUTPUT does indeed produce silence. Why
is it in read mode even though it is specified as -o, have I made another
silly mistake?
>
> On Wed, Feb 28, 2001 at 12:03:04PM -0500, S. Massy wrote:
> > I don't think I understand the concept of loops very well,
> > could someone explain why this cs won't work?
> > ------
> > -b:256 -sr:44100 -n:loop-test
> > -a:1 -f:s16_le,2,44100 -i:test.wav,
> > -a:2 -f:s16_le,2,44100 -i:loop,0,0
> > -a:3 -f:s16_le,2,44100 -i:loop,0,0
> > -a:4 -f:s16_le,2,44100 -i:loop,1,1
> >
> > -a:1 -f:s16_le,2,44100 -o:loop,0,0
> > -a:2 -f:s16_le,2,44100 -o:loop,1,1
> > -a:3 -f:s16_le,2,44100 -o:loop,1,1
> > -a:4 -f:s16_le,2,44100 -o:alsa,0,0,0
> >
> > -a:1
> > -a:2 -epp:0.00 -etp:2.00,50.00,50.00,0.03
> > -a:3 -epp:100.00 -etp:2.00,50.00,50.00,0.07
> > -a:4
> > --------
> >
> > And in the manpage the syntax is supposed to be loop,ID; why is there another
> > number added when you do a cs-save?
> >
> > Thanks,
> > S. Massy
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