Re: alsa and default sound input/output
Thank for the reply.
I found out that /etc/asound.conf is *the place* to look.
Apparently it is possible to talk to soundcards by some id:
# more /proc/asound/cards
0 [I82801DBICH4 ]: ICH4 - Intel 82801DB-ICH4
Intel 82801DB-ICH4 with STAC9750,51 at irq 7
Gives e.g. an entry in /etc/asound.conf :
pcm.!default {
type hw
card I82801DBICH4
}
This is possible, yes.
For the moment, I configured dmix into asound.conf, and it appears that
dsnoop is the equivalent for sound routing the other direction.
Yes, I have put in my .asoundrc long time ago following entries to have a
duplex device using the alsa docs and different forumes. This I did because
time ago the flash player was playing only at 44100Hz and alsa was
configured at 48000. So I played with it pretty long to understand what was
the issue and did this configuration. I'm not that sure if everything is
fine there, but it seems to work for me.
code
# Allow mixing of multiple output streams to this device
pcm.dmixer {
type dmix
ipc_key 1024
# ipc_perm 0660
# ipc_key_add_uid true
# slave.pcm hw:0,0
slave {
pcm hw:0,0 # you cannot use a plug device here, darn.
period_time 0
period_size 1024 # must be power of 2
buffer_size 8192 # dito. It
#format S32_LE
#periods 128 # dito.
rate 44100 # with rate 8000 you *will* hear, 44100
# if ossmix is used :)
}
# bindings are cool. This says, that only the first
# two channels are to be used by dmix, which is
# enough for (most) oss apps and also lets
# multichannel chios work much faster:
bindings {
0 0 # from 0 = to 0
1 1 # from 1 = to 1
}
}
# Allow reading from the default device.
# Also known as record or capture.
pcm.dsnooper {
type dsnoop
ipc_key 2048
# ipc_perm 0660
# ipc_key_add_uid true
slave.pcm hw:0
bindings {
0 0
1 1
}
}
It's fun to play with alsa if you have time bad weather outside and boring
tv or a woman around doing her own kind of things ;-)
# This is what we want as our default device
# a fully duplex (read/write) audio device.
pcm.duplex {
type asym
playback.pcm dmixer
capture.pcm dsnooper
}
pcm.!default {
type asym
# you could replace this with a route to duplex
playback.pcm dmixer
capture.pcm dsnooper
}
/code
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Re: alsa and default sound input/output
subscriptions wrote: Hi all, I am using Skype and my webcam has an in-build microphone. Is it possible that after hot-plugging the webcam, the default microphone (input) is from the webcam? But at the same time the default sound output is still to the on-board sound-card (i.e. laptop speakers)? At the moment I have to change the settings in Skype manually. I tried to look into /etc/asound.conf but I could not find proper documentation how to configure it. (Is it actually the correct place to look?) Best, Rob de Graaf I read somewhere that skype takes the first or the default device. I also did not make it to use the mic in the webcam from skype :-( I tried numbering the devices in the module list, but this also did not help in my case and I have to admit that I was not that persistent to solve it ;-) or may be it is working but I don know how to check it, because there is a built-in mic in my notebook and it is using the same chanel. cat /etc/modprobe.d/sound alias snd-card-0 snd-hda-intel alias snd-card-1 snd-usb-audio alias snd-card-2 hsfhda alias snd-card-3 snd-virmidi options snd cards_limit=6 options snd-hda-intel model=ref index=0 options snd-usb-audio index=1,2 vid=0x0471,0x2040 pid=0x0332,0x6500 options hsfhdaindex=3 options snd-virmidi index=4 midi_devs=2 So here I assign index 1 and 2 to the usb-audio driver, because I have webcam and tv card with use-audio regards -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: alsa and default sound input/output
On Sun, 2008-12-14 at 11:05 +0100, Emanoil Kotsev wrote:
subscriptions wrote:
Hi all,
I am using Skype and my webcam has an in-build microphone.
Is it possible that after hot-plugging the webcam, the default
microphone (input) is from the webcam? But at the same time the
default
sound output is still to the on-board sound-card (i.e. laptop
speakers)?
At the moment I have to change the settings in Skype manually.
I tried to look into /etc/asound.conf but I could not find proper
documentation how to configure it. (Is it actually the correct place
to
look?)
Best,
Rob de Graaf
I read somewhere that skype takes the first or the default device. I
also
did not make it to use the mic in the webcam from skype :-(
I tried numbering the devices in the module list, but this also did
not help
in my case and I have to admit that I was not that persistent to solve
it ;-) or may be it is working but I don know how to check it, because
there is a built-in mic in my notebook and it is using the same
chanel.
cat /etc/modprobe.d/sound
alias snd-card-0 snd-hda-intel
alias snd-card-1 snd-usb-audio
alias snd-card-2 hsfhda
alias snd-card-3 snd-virmidi
options snd cards_limit=6
options snd-hda-intel model=ref index=0
options snd-usb-audio index=1,2 vid=0x0471,0x2040 pid=0x0332,0x6500
options hsfhdaindex=3
options snd-virmidi index=4 midi_devs=2
So here I assign index 1 and 2 to the usb-audio driver, because I have
webcam and tv card with use-audio
regards
Thank for the reply.
I found out that /etc/asound.conf is *the place* to look.
Apparently it is possible to talk to soundcards by some id:
# more /proc/asound/cards
0 [I82801DBICH4 ]: ICH4 - Intel 82801DB-ICH4
Intel 82801DB-ICH4 with STAC9750,51 at irq 7
Gives e.g. an entry in /etc/asound.conf :
pcm.!default {
type hw
card I82801DBICH4
}
For the moment, I configured dmix into asound.conf, and it appears that
dsnoop is the equivalent for sound routing the other direction.
More to come ...
Best,
Rob
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alsa and default sound input/output
Hi all, I am using Skype and my webcam has an in-build microphone. Is it possible that after hot-plugging the webcam, the default microphone (input) is from the webcam? But at the same time the default sound output is still to the on-board sound-card (i.e. laptop speakers)? At the moment I have to change the settings in Skype manually. I tried to look into /etc/asound.conf but I could not find proper documentation how to configure it. (Is it actually the correct place to look?) Best, Rob de Graaf -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
