14 Apr
2004
14 Apr
'04
12:15 p.m.
Hi
I'm confused about how to setup alsa. Originally I managed to get things
working, but after buying an usb sound card, I'm even so confused that
I'm not exactly sure what to ask, but I'll try.
I run debian/unstable on a laptop with my own 2.6.4 kernel and alsa 1.0.
I have the following hardware that I believe to be related to alsa:
*Onboard i810 soundcard
*USB Edirol UA-1A sound card
*4 port usb hub
*2 evolution usb-keyboards connected to the hub
*I need one virtual midi port for each keyboard, so 2 for now
The problem is that right now the cards get assigned a card number that
reflects in what order they were inserted. I'd rather have them show up
on fixed locations. Below is my childish attempt on a /etc/modutils/alsa
file. I'm pretty sure it's not correct to refer to snd-usb-midi, since I
don't have a module by that name. Could anyone please give me a hand +
some general bckground information?
Thanks in advance!!!!
alias char-major-116 snd
alias char-major-14 soundcore
# i810
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
alias snd-card-0 snd-intel8x0
alias sound-slot-0 snd-card-0
# ua-1a
alias sound-service-1-0 snd-mixer-oss
alias sound-service-1-1 snd-seq-oss
alias sound-service-1-3 snd-pcm-oss
alias sound-service-1-8 snd-seq-oss
alias sound-service-1-12 snd-pcm-oss
alias snd-card-1 snd-usb-audio
alias sound-slot-1 snd-card-1
# virtual midi 1
alias snd-card-2 snd-virmidi
alias sound-slot-2 snd-card-2
# virtual midi 2
alias snd-card-3 snd-virmidi
alias sound-slot-3 snd-card-3
#evolution 1
alias snd-card-4 snd-usb-midi
alias sound-slot-5 snd-card-5
#evolution 2
alias snd-card-5 snd-usb-midi
alias sound-slot-5 snd-card-5
--
peace, love & harmony
Atte
http://www.atte.dk
14 Apr
14 Apr
12:25 p.m.
Atte André Jensen wrote:
Hi
I'm confused about how to setup alsa. Originally I managed to get things
working, but after buying an usb sound card, I'm even so confused that
I'm not exactly sure what to ask, but I'll try.
I run debian/unstable on a laptop with my own 2.6.4 kernel and alsa 1.0.
I have the following hardware that I believe to be related to alsa:
*Onboard i810 soundcard
*USB Edirol UA-1A sound card
*4 port usb hub
*2 evolution usb-keyboards connected to the hub
*I need one virtual midi port for each keyboard, so 2 for now
The problem is that right now the cards get assigned a card number that
reflects in what order they were inserted. I'd rather have them show up
on fixed locations.
I don't have an example here, but you can place an option line on each
card definition and add a keyword. Something like
option snd-card-1 index=1
Google around for info. It's out there.
2:10 p.m.
Hallo,
Atte André Jensen hat gesagt: // Atte André Jensen wrote:
I'm confused about how to setup alsa. Originally I
managed to get things
working, but after buying an usb sound card, I'm even so confused that
I'm not exactly sure what to ask, but I'll try.
I run debian/unstable on a laptop with my own 2.6.4 kernel and alsa 1.0.
I have the following hardware that I believe to be related to alsa:
*Onboard i810 soundcard
*USB Edirol UA-1A sound card
*4 port usb hub
*2 evolution usb-keyboards connected to the hub
*I need one virtual midi port for each keyboard, so 2 for now
There is an option to the usb-audio modules which lets you specify,
which one should get wich card number. For that you need to specify
Vendor and/or product ids and also the "index" option to tell
snd-usb-audio, which device you be at which card position.
Here's some old info I found, which you could try:
http://www.geocrawler.com/mail/msg_raw.php3?msg_id=10163242
There are some errors in your config as well.
alias char-major-116 snd
alias char-major-14 soundcore
# i810
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
alias snd-card-0 snd-intel8x0
alias sound-slot-0 snd-card-0
# ua-1a
alias sound-service-1-0 snd-mixer-oss
You don't need the following line:
alias sound-service-1-1 snd-seq-oss
Just delete
it.
alias sound-service-1-3 snd-pcm-oss
alias sound-service-1-8 snd-seq-oss
alias sound-service-1-12 snd-pcm-oss
alias snd-card-1 snd-usb-audio
alias sound-slot-1 snd-card-1
# virtual midi 1
alias snd-card-2 snd-virmidi
alias sound-slot-2 snd-card-2
# virtual midi 2
alias snd-card-3 snd-virmidi
alias sound-slot-3 snd-card-3
#evolution 1
alias snd-card-4 snd-usb-midi
There is no snd-usb-midi module anymore. You need to use
snd-usb-audio, but you already loaded that above, so you need that
"vid"-trick, that should be explained somewhere in the archives.
This is from the INSTALL file:
Module snd-usb-audio.o
----------------------
Module for USB audio and USB MIDI devices.
vid - Vendor ID for the device (optional)
pid - Product ID for the device (optional)
This would configure one slecial USB device as the second card
(index=1):
options snd-usb-audio vid=0x763 pid=0x1001 index=1
And I found this on the net for configuring two usb cards with fixed
indexes:
options snd-usb-audio index=1,2 vid=0x0763,0x0582 pid=0x1110,0x0005
alias sound-slot-5 snd-card-5
#evolution 2
alias snd-card-5 snd-usb-midi
See above. Same error.
alias sound-slot-5 snd-card-5
Ciao
--
Frank Barknecht _ ______footils.org__
2:35 p.m.
Atte André Jensen wrote:
The problem is that right now the cards get assigned a
card number that
reflects in what order they were inserted. I'd rather have them show up
on fixed locations.
alias snd-card-0 snd-intel8x0
alias snd-card-1 snd-usb-audio
alias snd-card-2 snd-virmidi
The OSS device nodes for the first two port of this will be
/dev/midi02 and /dev/amidi02, so you probably don't need to load
snd-virmidi twice.
alias snd-card-3 snd-virmidi
alias snd-card-4 snd-usb-midi
alias snd-card-5 snd-usb-midi
The module for these should be snd-usb-audio, too.
You would need the following index options:
options snd-intel8x0 index=0
options snd-usb-audio index=1,4,5 vid=0x0582
options snd-virmidi index=2,3
(the vid option forces the UA-1A to index 1; without this, one of the
keyboards could be loaded at index 1)
HTH
Clemens
15 Apr
15 Apr
5:12 a.m.
Clemens Ladisch wrote:
You would need the following index options:
options snd-intel8x0 index=0
options snd-usb-audio index=1,4,5 vid=0x0582
options snd-virmidi index=2,3
(the vid option forces the UA-1A to index 1; without this, one of the
keyboards could be loaded at index 1)
Thanks alot to everybody for all the response. I'll look at it tonight,
and get back...
--
peace, love & harmony
Atte
http://www.atte.dk
7:41 a.m.
Atte André Jensen wrote:
Thanks alot to everybody for all the response.
I'll look at it tonight,
and get back...
Well, now I tried it, it works and even makes sense...
Here's the resulting:
alias char-major-116 snd
alias char-major-14 soundcore
# i810
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
alias snd-card-0 snd-intel8x0
alias sound-slot-0 snd-card-0
# ua-1a
alias sound-service-1-0 snd-mixer-oss
alias sound-service-1-3 snd-pcm-oss
alias sound-service-1-8 snd-seq-oss
alias sound-service-1-12 snd-pcm-oss
alias snd-card-1 snd-usb-audio
alias sound-slot-1 snd-card-1
# virtual midi
alias snd-card-2 snd-virmidi
alias sound-slot-2 snd-card-2
#evolution 1
alias snd-card-3 snd-usb-audio
alias sound-slot-3 snd-card-3
#evolution 2
alias snd-card-4 snd-usb-audio
alias sound-slot-4 snd-card-4
options snd-intel8x0 index=0
options snd-usb-audio index=1,3,4 vid=0x0582
options snd-virmidi index=2
The next step is to convince csound to send audio to the edirol card.
Caling csound with "-o /dev/dsp" sends to the onboard card. SInce
/dev/dsp is s symlink to /dev/dsp0 I though "-o /dev/dsp0" would give
the same result, but that only outputs noise (on the onboard alright).
"-i /dev/dsp1" makes the same noises on the edirol. Any ideas on how to
make csound use my edirol sound card???
--
peace, love & harmony
Atte
http://www.atte.dk
9:09 a.m.
Atte André Jensen wrote:
Caling csound with "-o /dev/dsp" sends to
the onboard card. SInce
/dev/dsp is s symlink to /dev/dsp0 I though "-o /dev/dsp0" would give
the same result, but that only outputs noise (on the onboard alright).
"-i /dev/dsp1" makes the same noises on the edirol.
Is /dev/dsp really a symlink to /dev/dsp0?
Does Csound have parameters to set the sample format/rate?
Regards,
Clemens
4:24 p.m.
Clemens Ladisch wrote:
Is /dev/dsp really a symlink to /dev/dsp0?
[atte@aarhus atte]$ ll /dev/dsp*
lrwxr-xr-x 1 root audio 9 2004-03-19 13:53 /dev/dsp ->
/dev/dsp0
crwxrwxrwx 1 root audio 14, 3 2003-08-13 10:13 /dev/dsp0
crwxrwxrwx 1 root audio 14, 19 2003-08-13 10:13 /dev/dsp1
crwxrwxrwx 1 root audio 14, 35 2003-08-13 10:13 /dev/dsp2
crwxrwxrwx 1 root audio 14, 51 2003-08-13 10:13 /dev/dsp3
Does Csound have parameters to set the sample
format/rate?
Yes, quite a few:
-b N sample frames (or -kprds) per software sound I/O buffer
-B N samples per hardware sound I/O buffer
-A create an AIFF format output soundfile
-W create a WAV format output soundfile
-J create an IRCAM format output soundfile
-h no header on output soundfile
-c 8-bit signed_char sound samples
-a alaw sound samples
-8 8-bit unsigned_char sound samples
-u ulaw sound samples
-s short_int sound samples
-l long_int sound samples
-f float sound samples
-3 24bit sound samples
-r N orchestra srate override
Are the options that would be relevant in this case. Any ideas on what
to go for???
--
peace, love & harmony
Atte
http://www.atte.dk
14 Apr
14 Apr
4:29 p.m.
Atte André Jensen wrote:
The problem is that right now the cards get assigned a
card number
that reflects in what order they were inserted. I'd rather have them
show up on fixed locations. Below is my childish attempt on a
/etc/modutils/alsa file. I'm pretty sure it's not correct to refer to
snd-usb-midi, since I don't have a module by that name. Could anyone
please give me a hand + some general bckground information?
I haven't been able to figure this one out either. I just give it a
static ID at the end for all the USB devices.
-lee
7722
days inactive
7723
days old
linux-audio-user@lists.linuxaudio.org
8 comments
5 participants
participants (5)
-
Atte André Jensen -
Clemens Ladisch -
Frank Barknecht -
Lee Azzarello -
Mark Knecht