[Kdenlive-devel] ffmpeg screen capture with Alsa sound ?

Mads Bondo Dydensborg mads at dydensborg.dk
Tue Oct 21 19:27:29 UTC 2008


tirsdag 21 Oktober 2008 skrev Jean-Michel Pouré:
> Le mardi 21 octobre 2008 à 21:13 +0200, Jean-Michel Pouré a écrit :
> > Now, how to capture sound from Alsa input?
> > I know that I could record seperately, but I fear unsynchronized
> > sound.
> 
> This seems to be possible using Sox:
> 
http://develcuy.com/en/content/debian/howto-screencasting-console-sox-and-ffmpeg
> 
> Example:
> sox -t alsa "hw:0,0" -t ogg -A -2 -c1 -r11025 - | ffmpeg -y -i - -ar
> 11025 -ab 52 -ac 1 -f x11grab -s 800x600 -i :0.0+10,20 -b 200 -r 12
> -aspect 4:3 -f flv test.flv

You can not use the kdenlive "capture sound while capturing screen" 
functionality on alsa? Did you test the quality he calls "horrible"?

Regards

Mads

-- 
Mads Bondo Dydensborg   mads at dydensborg.dk   http://www.madsdydensborg.dk/

Value your freedom, or you will lose it, teaches history. "Don't bother us
with politics," respond those who don't want to learn.

        - Free software proponent, Richard M. Stallman




More information about the Kdenlive mailing list