Arch Linux

tsouzar

Member

From: Brazil

Registered: 2013-02-24

Posts: 8

Can't get USB webcam's microphone card name with arecord -L

Hello. I'm having some problems in my computer's input audio. I've a headset but it's microphone is broken. I also have a USB webcam with microphone and I wanna set it as my default recording device. I tried to follow Arch Wiki (https://wiki.archlinux.org/index.php/Ad … ure_device) but I can't get the right device name.

The output of

arecord -L

:

null
    Discard all samples (playback) or generate zero samples (capture)
sysdefault:CARD=Intel
    HDA Intel, VT1708B 8-Ch Analog
    Default Audio Device
front:CARD=Intel,DEV=0
    HDA Intel, VT1708B 8-Ch Analog
    Front speakers
surround40:CARD=Intel,DEV=0
    HDA Intel, VT1708B 8-Ch Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
    HDA Intel, VT1708B 8-Ch Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
    HDA Intel, VT1708B 8-Ch Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
    HDA Intel, VT1708B 8-Ch Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
    HDA Intel, VT1708B 8-Ch Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
sysdefault:CARD=CAMERA
    USB2.0 PC CAMERA, USB Audio
    Default Audio Device
front:CARD=CAMERA,DEV=0
    USB2.0 PC CAMERA, USB Audio
    Front speakers
surround40:CARD=CAMERA,DEV=0
    USB2.0 PC CAMERA, USB Audio
    4.0 Surround output to Front and Rear speakers
surround41:CARD=CAMERA,DEV=0
    USB2.0 PC CAMERA, USB Audio
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=CAMERA,DEV=0
    USB2.0 PC CAMERA, USB Audio
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=CAMERA,DEV=0
    USB2.0 PC CAMERA, USB Audio
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=CAMERA,DEV=0
    USB2.0 PC CAMERA, USB Audio
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=CAMERA,DEV=0
    USB2.0 PC CAMERA, USB Audio
    IEC958 (S/PDIF) Digital Audio Output

I tried to use iec958 as card name, but now I get this error on arecord for which I deduced iec958 isn't correct:

ALSA lib pcm_hw.c:1667:(_snd_pcm_hw_open) Invalid value for card
arecord: main:722: audio open error: Dispositivo inexistente
aplay: playback:2715: read error

How can I get right card's name for my webcam?
Since now, thanks and sorry to my poor English. Bye.

###########################################################################################

cat /proc/asound/cards

returns me

 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xfe978000 irq 41
 1 [CAMERA         ]: USB-Audio - USB2.0 PC CAMERA
                      ARKMICRO USB2.0 PC CAMERA at usb-0000:00:1d.7-3, high speed

For Intel card, it's name is 0xfe978000, and for USB cam? I tried usb-0000:00:1d.7-3 but error which I said above still happening.

Last edited by tsouzar (2013-10-21 00:06:13)