[Bug 727135] Too low recording sound when take a video by cheese with single microphone

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=727135
  GStreamer | gst-plugins | 0.10.36

--- Comment #2 from evawang <evawang at linpus.com> 2014-04-07 09:59:49 UTC ---
The sound is OK when running gst-launch-1.0 -e $SRC ! wavenc ! filesink
location=/tmp/test.wav

and sound is OK when record the video with below command: 

 gst-launch v4l2src ! 'video/x-raw-yuv,width=640,height=480,framerate=30/1' !
tee name=t_vid ! queue ! xvimagesink sync=false t_vid. ! queue ! videorate !
video/x-raw-yuv,framerate=30/1 ! theoraenc ! queue ! mux. alsasrc !
audio/x-raw-int,rate=48000,channels=2,depth=16 ! queue ! audioconvert ! queue !
vorbisenc ! queue ! mux. oggmux name=mux ! filesink
location=me_funny_dancing.ogg

video format from cheese is webm, could you tell us how to use gst-launch
create webm format video?

Could you help to confirm whether it is related to the video format?

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