Re: Using usb webcam mic doesnt work - listed in arecord, but cant use

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Also it seems i have a mixer, but cant use it in alsa:

---
marcel@marcel-desktop:~$  cat /dev/sndstat
Sound Driver:3.8.1a-980706 (ALSA v1.0.18a emulation code)
Kernel: Linux marcel-desktop 2.6.29-custom #1 SMP PREEMPT Fri Apr 3 16:53:58 CEST 2009 x86_64
Config options: 0

Installed drivers:
Type 10: ALSA emulation

Card config:
HDA NVidia at 0xfe020000 irq 21
OmniVision Technologies, Inc. USB Camera-B4.04.27.1 at usb-0000:00:02.1-1, high

Audio devices:
0: ALC888 Analog (DUPLEX)
1: USB Audio

Synth devices: NOT ENABLED IN CONFIG

Midi devices: NOT ENABLED IN CONFIG

Timers:
31: system timer

Mixers:
0: Nvidia ID 2
1: USB Mixer


On Fri, Apr 3, 2009 at 2:55 PM, Marcel Koopman <marcel.koopman@xxxxxxxxx> wrote:
Hello,

I have problems using my mic on the usb webcam.
I've tried two different webcams so I'm thinking it has something to do with alsa.

First, if I do arecord --list-devices, two devices show up. Thats correct. However when i do alsamixer -c 1 I get an error. Why is that?

Next, skype fails on me with a read error. Possible because something is not setup correctly in alsa?

Below i pastes some output of various commands:

---
marcel@marcel-desktop:~$ arecord --list-devices
**** List of CAPTURE Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: ALC888 Analog [ALC888 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: CameraB404271 [USB Camera-B4.04.27.1], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

---
marcel@marcel-desktop:~$ alsamixer -c 1

alsamixer: function snd_mixer_load failed: Invalid argument

---
marcel@marcel-desktop:~$ asoundconf list
Names of available sound cards:
NVidia
CameraB404271

---
marcel@marcel-desktop:~$ skype

RtApiAlsa: callback thread error (RtApiAlsa: audio read error for device (USB Camera-B4.04.27.1 (hw:CameraB404271,0)): Input/output error.) ... closing stream.

---

Met vriendelijke groet,

Marcel Koopman



--
Met vriendelijke groet,

Marcel Koopman
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