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#1 2007-03-08 00:01:48

nchampsa
Member
Registered: 2007-03-07
Posts: 2

USB mic not working

Hi All.

I'm new to Archlinux and I have the following issue with my USB WebCam (Microsoft VX-1000) : I can't get no sound out of it.
Both the video and audio devices are detected and proper modules are loaded (gspca and snd-usb-audio).
Video works fine.

arecord -l give the following results :

**** List of CAPTURE Hardware Devices ****
card 0: CK8S [NVidia CK8S], device 0: Intel ICH [NVidia CK8S]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: CK8S [NVidia CK8S], device 1: Intel ICH - MIC ADC [NVidia CK8S - MIC ADC]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: camera [USB camera], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

which looks ok to me.

But when I tried to record something (arecord -D plughw:1,0 -d 5 test.wav) then play it back, I can't hear anything.
I even tried to cat /dev/dsp1 into a file then play it back with aplay. Nothing.

All this tests were run while in command line with no DE running (to prevent conflicts with ESD and the like).

After 5 hours of googling, I can't find any solution. Help me, pleeeaaaase.

Here are some more info, in case it might help :
lsusb

Bus 003 Device 001: ID 0000:0000  
Bus 001 Device 002: ID 045e:00f7 Microsoft Corp. 
Bus 001 Device 001: ID 0000:0000  
Bus 002 Device 001: ID 0000:0000

lsmod | grep snd

snd_usb_audio          73184  1 
snd_usb_lib            14208  1 snd_usb_audio
snd_rawmidi            19104  1 snd_usb_lib
snd_hwdep               7044  1 snd_usb_audio
snd_seq_oss            29184  0 
snd_seq_midi_event      6528  1 snd_seq_oss
snd_seq                46672  4 snd_seq_oss,snd_seq_midi_event
snd_seq_device          6796  3 snd_rawmidi,snd_seq_oss,snd_seq
snd_pcm_oss            39072  0 
snd_mixer_oss          14464  1 snd_pcm_oss
snd_intel8x0           28828  1 
snd_ac97_codec         91940  1 snd_intel8x0
ac97_bus                2432  1 snd_ac97_codec
snd_pcm                68484  4 snd_usb_audio,snd_pcm_oss,snd_intel8x0,snd_ac97_codec
snd_timer              18820  2 snd_seq,snd_pcm
snd                    43492  16 snd_usb_audio,snd_rawmidi,snd_hwdep,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
soundcore               6496  1 snd
snd_page_alloc          7816  2 snd_intel8x0,snd_pcm
usbcore               115208  6 snd_usb_audio,snd_usb_lib,gspca,ehci_hcd,ohci_hcd

ls /dev/snd

controlC0  pcmC0D0c  pcmC0D1c  pcmC1D0c  timer
controlC1  pcmC0D0p  pcmC0D2p  seq

Thank you very much in advance.
Nico.

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#2 2007-03-08 02:45:18

skale
Member
From: Atlanta, GA
Registered: 2006-08-04
Posts: 146

Re: USB mic not working

Before you pull your hair out, did you check the Microphone sound level in alsamixer?  It might be muted.

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#3 2007-03-08 19:21:21

nchampsa
Member
Registered: 2007-03-07
Posts: 2

Re: USB mic not working

I mic is unmuted, that was the first thing I checked. And I ran camE during the test to be sure that the webcam is on (green led on).

Another strange thing is, when I run alsamixer, I can only lower the mic capture volume, not raise it. Curious. It works ok in gnome-alsa-mixer though. I guess their might be an issue with the device's control interface, due to a problem with the alsa driver (my webcam not being supported yet).

I really can think of anything else.

Anybody has another idea... please... before I lose the rest of my hair... wink

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#4 2007-03-09 01:26:36

skale
Member
From: Atlanta, GA
Registered: 2006-08-04
Posts: 146

Re: USB mic not working

First of all, USB Speaker?   I didn't even know those existed.  Not sure.  You might want to go to Google Linux and look for information on your specific device.  Or, someone else who has done something like this can help you out.  Post it in hardware issues maybe.

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#5 2009-03-25 14:27:52

reflexing
Member
Registered: 2009-03-25
Posts: 58
Website

Re: USB mic not working

Same problem, same Microsoft VX-1000.

But I also had to install latest gspca driver from http://linuxtv.org/hg/~jfrancois/gspca/ to get video working.

Did you solve your "no sound problem"?

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