9 Oct
2009
9 Oct
'09
6:06 a.m.
2009/10/7 Paul Davis <paul(a)linuxaudiosystems.com>om>:
On Wed, Oct 7, 2009 at 9:58 AM, Dan S
<danstowell+lxau(a)gmail.com> wrote:
Forgive the ignorance but what sort of string does aplay's "-d" option
need? I tried the device names that qjackctl shows me (namely default,
hw:0, hw:1,0, hw:1) and only "default" worked (I expected hw:0 also to
work since that's the same as default, i.e. the internal card). All
other options return immediately with error and don't play.
Here's what aplay -l gives:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC861VD Analog [ALC861VD Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Pro [FastTrack Pro], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Pro [FastTrack Pro], device 1: USB Audio [USB Audio #1]
Subdevices: 1/1
Subdevice #0: subdevice #0
I tried various device names like "Intel", "HDA Intel",
"Pro",
"FastTrack Pro", "USB Audio" and they all give the answer
"unknown
PCM". Device names "hw" "hw:0" "hw:1"
"hw:1,0" give this:
Playing WAVE 'a11wlk01.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Mono
aplay: set_params:909: Channels count non available
If I use the device name "multi" (the name I specified for the virtual
device) I get
ALSA lib pcm_multi.c:1169:(_snd_pcm_multi_open) Invalid or missing
schannel for channel 3
aplay: main:550: audio open error: Invalid argument
Grateful for any suggestions -
Thanks
Dan
This thread
<http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg23839.html>
suggests that using .asoundrc to aggregate the two devices into one
virtual device should work, but for me it simply doesn't, the virtual
device never shows up in qjackctl and even jackd from commandline
can't connect to it by name.
can aplay? if not, start there.