22 Jan
2005
22 Jan
'05
5:43 p.m.
It's been a considerable amount of time since I last fired up my quattro.
Like everyone else, I had very mixed results and eventually gave up. Here's
the last incarnation of my .asoundrc file. At the time, I was running FC1...
# quattro1 is pcm0 which has a maximum sample rate of 44100 and 16 bit stereo
pcm.quattro1 {
type hw
card 0
device 0
}
ctl.quattro1 {
type hw
card 0
}
# quattro2 is pcm1 which has a maximum sample rate of 96000 and 24 bit stereo
pcm.quattro2 {
type hw
card 0
device 1
}
ctl.quattro2 {
type hw
card 0
}
# quattro2 is pcm2 which has a maximum sample rate of 96000 and 24 bit stereo
pcm.quattro3 {
type hw
card 0
device 2
}
ctl.quattro3 {
type hw
card 0
}
#----
#
# compose 4 channels from two channel x two devices, hw:2,1 and hw:2,2
# assuming that hw:2,1 and hw:2,2 give the same condition, 24_3LE/96k
#
pcm.quattro {
type multi;
slaves.a.pcm "hw:0,1";
slaves.a.channels 2;
slaves.b.pcm "hw:0,2";
slaves.b.channels 2;
bindings.0.slave a;
bindings.0.channel 0;
bindings.1.slave a;
bindings.1.channel 1;
bindings.2.slave b;
bindings.2.channel 0;
bindings.3.slave b;
bindings.3.channel 1;
}
ctl.quattro {
type hw;
card 0;
}
#
# remap 4 channels as interleaved.
# use plug instead of route here, since 24_3LE is unlikely supported by
# applications.
#
# arecord -r 44100 -c 4 -f s16_le -D q4 -d 5 /home/xxx/q4.wav
pcm.q4 {
type plug;
slave.pcm "quattro";
ttable.0.0 1;
ttable.1.1 1;
ttable.2.2 1;
ttable.3.3 1;
}
ctl.q4 {
type hw;
card 0;
}
#
# Use route plugin for applications that do support 24_3LE
# This lowers latency which the plug plugin introduces due to resampling.
#
# arecord -r 44100 -c 4 -f s16_le -D q41 -d 5 /home/xxx/q41.wav
pcm.q41 {
type route;
slave.pcm "quattro";
ttable.0.0 1;
ttable.1.1 1;
ttable.2.2 1;
ttable.3.3 1;
}
ctl.q41 {
type hw;
card 0;
}
#----
HTH...
Greg
www.gregwilder.com
On Saturday 22 January 2005 03:12 pm, timg(a)expressmart.com wrote:
Forst of all Thank you for your help.
but..
HMM failure...(output below)
Any ideas
jackstart/jackd -r 48000 -d alsa -d quattro
Gives me
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
jackd 0.99.0
Copyright 2001-2003 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
creating alsa driver ...
quattro|quattro|4096|2|48000|0|0|nomon|swmeter|-|32bit
ALSA lib pcm_hw.c:1155:(snd_pcm_hw_open) open /dev/snd/pcmC2D2p failed: No
such device
ALSA lib pcm_hw.c:1155:(snd_pcm_hw_open) open /dev/snd/pcmC2D2c failed: No
such device
ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to
capture-only mode
cannot load driver module alsa
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
That device is there.. is it just invalid?
> I'll Try This when my child takes a mid-day sleep. ;)
>
>> Hallo,
>>
>> timg(a)expressmart.com hat gesagt: // timg(a)expressmart.com wrote:
>>> OK here we go ...;)Prom going to annoy several of you with this ;)
>>>
>>>
>>> -- OK guys and gals,
>>> Working on my USB quattro issue...
>>>
>>> My .asoundrc file looks like this...(thanks to the alsa page)
>>>
>>> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>+++++++++++++++++ # quattro1 is pcm0 which has a maximum sample rate of
>>> 44100 and 16 bit stereo
>>>
>>> pcm.quattro1 {
>>> type hw
>>> card 0
>>> device 0
>>> }
>>
>> ...
>>
>>> ctl.q41 {
>>> type hw;
>>> card 0;
>>> }
>>>
>>> #----
>>> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>++++++++++++++++++++++++++++++++++ When I do cat /proc/asound/cards I
>>> get this.. (any way to kill that modem
>>> from showing up in alsa mixers)
>>>
>>> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>++++++++++++++++++++++++++++++++++ 0 [Modem ]: ICH-MODEM -
>>> Intel 82801CA-ICH3 Modem
>>> Intel 82801CA-ICH3 Modem at 0x2400, irq 10
>>> 1 [I82801CAICH3 ]: ICH - Intel 82801CA-ICH3
>>> Intel 82801CA-ICH3 at 0x1c00, irq 10
>>> 2 [Quattro ]: USB-Audio - USB Audio Quattro
>>> M Audio USB Audio Quattro at usb-00:1d.0-1, full
>>> speed
>>> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>++++++++++++++++++++++++++++++++++
>>>
>>>
>>> My bigest dillema are ...
>>>
>>> 1> How exactly do I modify my .asoind rc file to hit the right hw
>>> devoce?
>>
>> Everywhere you find "card 0" or "hw:0" you need to replace
this with
>> "card 2" or "hw:2". Do not touch the "device 0"
stuff, though.
>>
>>> 2> how do I start jackd?
>>
>> For example:
>> $ jackstart/jackd -r 48000 -d alsa -d quattro
>>
>>> 3> How do start jackd in the other various modes?
>>
>> Replace "quattro" with the setup you want to use, e.g. "q4"
or "q4b",
>> and "48000" with other samplerates, if you want to use higher rates.
>> Do not use 44100!
>>
>> Ciao
>> --
>> Frank Barknecht _ ______footils.org__
>
> --
> When asked the definition of "pi":
> The Mathematician:
> Pi is the number expressing the relationship between the
> circumference of a circle and its diameter.
> The Physicist:
> Pi is 3.1415927, plus or minus 0.000000005.
> The Engineer:
> Pi is about 3.