Date: Wed, 29 Jan 2003 10:15:55 -0600 (CST) From: Jim Ramsay <lists@jimramsay.com> To: freebsd-multimedia@freebsd.org Subject: ecasound and/or multitracking Message-ID: <20030129094807.S31039@holmes.jimramsay.com>
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I finally got my soundcard (CMI8738) to do some duplex work using
hw.snd.pcm0.vchans=4 and ecasound, but I've ran into a bit of a snag.
(for some {unrelated?} reason audacity still won't let me do duplex...)
In the following examples, /dev/dspxy is symlinked to /dev/dspx.y
Recording a single track (no playback) works great:
ecasound -c -r -i /dev/dsp00 -o one.wav
I type "start[enter]" to start recording, and "stop[enter]" to end.
Then trying to do a multitrack does odd things:
ecasound -c -r -a:1 -i /dev/dsp00 -o two.wav -a:2 -i one.wav -o /dev/dsp01
I type "start[enter]" and nothing seems to happen. If I hold down the
[enter] key, the playback begins, and I can record audio simultaneously
into two.wav.
Any ideas why this would happen? Does ecasound suck? Is there a better
multi-track duplex recorder out there somewhere that'll work with my card?
As I mentioned above, I've tried audacity, but it won't let me do
full-duplex at all.
Misc settings:
`cat /dev/sndstat`
FreeBSD Audio Driver (newpcm)
Installed devices:
pcm0: <CMedia CMI8738> at io 0xb000 irq 10 (1p/1r/4v channels duplex)
`ls -l /dev/dsp*`
lrwxrwxrwx 1 root wheel 4 Jul 11 2002 /dev/dsp -> dsp0
lrwxrwxrwx 1 root wheel 6 Jul 11 2002 /dev/dsp0 -> dsp0.0
crw-rw-rw- 1 root wheel 30, 3 Jan 29 08:38 /dev/dsp0.0
crw-rw-rw- 1 root wheel 30, 65539 Jan 29 08:38 /dev/dsp0.1
crw-rw-rw- 1 root wheel 30, 131075 Nov 26 19:03 /dev/dsp0.2
crw-rw-rw- 1 root wheel 30, 196611 Nov 26 19:02 /dev/dsp0.3
lrwxr-xr-x 1 root wheel 6 Nov 26 23:50 /dev/dsp00 -> dsp0.0
lrwxr-xr-x 1 root wheel 6 Nov 26 23:50 /dev/dsp01 -> dsp0.1
lrwxr-xr-x 1 root wheel 6 Nov 26 23:50 /dev/dsp02 -> dsp0.2
lrwxr-xr-x 1 root wheel 6 Nov 26 23:50 /dev/dsp03 -> dsp0.3
...
`uname -r`
4.6-RELEASE
Thanks!
Jim Ramsay
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