On 12/22/14 17:58, Alexander Kapshuk wrote:
  On Mon, Dec 22, 2014 at 7:16 AM, Joseph <[1]syscon...@gmail.com> wrote:

    How to configure alsamixer and or XFCE4 to get playback from my
    motherboard card and input sound from USB?
    I'm trying to configure skype for input sound from USB cam abut
    playback from my sound card on motherboard.
    At the moment the only option I have is "pulse audio".
    --
    Joseph

  What's the output of 'equery -q u skype'?
  Run the alsamiser command line shown below on your card ID, and make
  sure you don't have anything muted there.
  alsamixer -c 0
  # '-c' sound card ID. You can find the correct IDs by running 'aplay
  -l', which comes from media-sound/alsa-utils.

equery -q u skype
-apulse
-pax_kernel
+pulseaudio

By default skype is using "pulseaudio" (poor choice) and it will not let you 
select input device for sound.
The solution that works is to emerge "pavucontrol" Pulse Audio Volume Control

Under "tab" Input Devices in Pulse Audio Volume Control there should be entry 
for a web-cam; in my case it is Web-Cam C270
On the right there is a button: "Set as Fallback" it should be enabled.

The skype will not show in Control USB audio input option but the call sound 
with skype will work.

Question:
How do you set alsamixer default card?
By default it goes to pulseaudio whey I type "alsamixer" I want to set it to "0" as default.


--
Joseph

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