<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> Oddly enough, that makes things worse :( Here is what I have confirmed - the following command will result in a VERY clear high quality audio-only recording on my configuration: > gst-launch-0.10 alsasrc device="hw:1,0" ! audio/x-raw-int,rate=16000,channels=1,depth=16 ! audioconvert ! vorbisenc ! oggmux ! filesink location=audio-only.ogg Which you can hear: <a class="moz-txt-link-freetext" href="http://www.buberel.org/audio-only.ogg">http://www.buberel.org/audio-only.ogg</a> But when I use Nei's command below, which has essentially the same audio parameters but with the additional 'queue' element to record audio and video, I see many of the following error messages: WARNING: from element /pipeline0/alsasrc0: Can't record audio fast enough Additional debug info: gstbaseaudiosrc.c(603): gst_base_audio_src_create (): /pipeline0/alsasrc0: dropped 13600 samples WARNING: from element /pipeline0/alsasrc0: Can't record audio fast enough Additional debug info: gstbaseaudiosrc.c(603): gst_base_audio_src_create (): /pipeline0/alsasrc0: dropped 12000 samples WARNING: from element /pipeline0/alsasrc0: Can't record audio fast enough Additional debug info: I am going to work on an ascii-art diagram of this pipeline in the hopes that it will help others see the mistake I am making. -jason Nie Jun wrote: <blockquote cite="mid:7c34ac520803040147i7f55253m10c871b470a24b88@mail.gmail.com" type="cite"> <pre wrap="">gst-launch-0.10 v4l2src ! queue ! videorate ! video/x-raw-yuv,width=800,height=600,framerate=15/1 ! ffmpegcolorspace ! theoraenc ! queue ! oggmux name=mux alsasrc device="hw:1,0" ! audiorate ! audio/x-raw-int,rate=16000,channels=1,depth=16 ! queue ! audioconvert ! vorbisenc ! QUEUE ! mux. mux. ! queue ! filesink sync=true location=test.ogg hope it helps you. </pre> </blockquote> </body> </html>