14 Dec
2010
14 Dec
'10
12:15 p.m.
On 12/14/2010 12:11 PM, Robin Gareus wrote:
On 12/14/2010 10:57 AM, ailo wrote:
OOPS: I've just realized that two of your devices are identical.
I don't think the name will help in that case. IIRC there's away to use
a UID or BUS like /dev/snd/by-path/.. but I don't remember the details
just now.
best,
robin
...or to load devices into specific alsa-slots
(hw:0, hw:1...)
Does someone have a nice method to do one of these?
Since I knew of no other method, I tried loading the cards into specific
slots, according to this method found at planetccrma's home page:
alias snd-card-0 snd-CARD_0
options snd-card-0 index=0
options snd-CARD_0 index=0
alias snd-card-1 snd-CARD_1
options snd-card-1 index=1
options snd-CARD_1 index=1
...
alias snd-card-N snd-CARD_N
options snd-card-N index=N
options snd-CARD_N index=N
I have two m-audio delta devices and I never found a good way to
configure alsa so they would load in a specific order. There was the
problem of naming, since both cards have the same name.
I think I would prefer the pulseaudio method, which remembers the card
itself, not the alsa slot (I don't know anything about that, to be honest).
Other things to consider is:
More than 5 devices will be used, some of them usb midi (usb midi
devices also appear in alsa sound slots).
Two m-audio delta cards for audio input (8 + 4 inputs), and at least the
sound cards need to always load in the same order with jack.
Is it possible to get jack/alsa to remember the sound cards after reboot?
This has been discussed a couple of times on this list, search the
list-archive for details.
The idea is to refer to audio interfaces by name or device-id rather
than numeric ID.
cat /proc/asound/cards
gives you a list. - use the names between the square brackets
e.g.
jackd -R -P70 -t1000 -dalsa -d 'hw:Intel' -r48000 -p1024 -n2
HTH,
robin