19 Sep
2004
19 Sep
'04
8:48 a.m.
I'm sorry that I've obviously phrased this question all wrong.
so I'll try to be a little bit more detailed this time.
I have now installed Mandrake 10.1 on the machine.
and now aplay -l does indeed report the existance of UA-100 card
kscd shows all the typical signs of playing a cd, it lists tracks, it
starts counting when play is pressed,
But no sound emerges.
amixer reports no mixer elements, or nothing.
/proc/asound/cards displays an endless stream of
0 [UA100 ]: USB-Audio - UA - 100
Roland UA - 100 at usb-0000:00:07.2 - 2, full
speed
if I try to select a Device with
aplay -D= *****
nothing I type in seems to make any sense to it.
if I try to list pcm devices to plug into the above line with aplay -D
the results are to say the least incomprehensable.
Where do I go next? This used to work when I installed 9.2 originally
but I have been poking & proding for 4 days now and It still desn't
work. ONce again I apologies for the way I present my questions but I am
NOT pestering before trying, I am on a last ditch attempt to play a CD
on a linux box.
I won't bore you with my background, but I have a little involvement in
the synth, computing and audio field and yet this is now getting way
beyond a joke. I have had this playing with Micheal Minns MMUSAUDIO .
However ALSA seems the way to go for all things Audio and Linux.
So how do you check the signal path in a system? and what do you do if a
device appears not to be supported by the mixing facilities?
Chris Lyon
Chris Lyon wrote:
/proc/asound/cards reports
0 [rev20 ]:VIA686A -VIA 82C686A/B rev20
VIA 82C686A/B rev20 at 0xac00,
irq 11
1 [UA100 ]: USB-Audio - UA-100
Roland UA-100 at usb-00:07.2-2
So it looks like something is seen but how do I get aplay to play to the
UA-100? The VIA card has alway's reported itself but neither windows,
linux or anything else has ever got any life out of it!
so do I use the aplay to select the card even thou, aplay -l doesn't
list it?
Chris
Chris Lyon wrote:
Dear all,
Roland UA-100 plugged into PC, usbview detects interface.
aplay -l doesn't report any knowledge of the device.
I believe I have loaded the appropriate modules, snd-usb-audio but
the system resolutely refuses to make music as it has before. I would
include the appropriate modules.conf files to show but this E-mailing
machine and the linux box are not connected and I feel cross reading
would be a little error strewn.
Can anyone outline a procedure for checking at which point a problem
might occur and, if possible, a list of command line utilities that
can reveal precisely what components are loaded. Is it possible to
load modules incompletly such that a component identifies it's
presence but isn't actual functioning. If this is so how does one
check the dependancies?
I understand that amix and alsamixer won't recognise the presence of
a USB connected audio interface, is this the case?
Any help appreciated.
Chris Lyon