[MPlayer-users] mencoder: Increase volume using af filter?

[Ron Johnson]

Yes, mencoder is not maintained anymore, but I also want to increase 
brightness and haven't yet divined the ffmpeg incantations for that.

Google has shown me how to do it using lameopts, but I'm using lavc.

This does not appear to increase the target volume by 10dB.

mencoder \
  -oac lavc \
  -ovc lavc -of mpeg \
  -mpegopts format=xsvcd:tsaf -vf scale=480:480,harddup,eq2=1.0:1.0:0.2 \
  -srate 44100 \
  -af lavcresample=44100:volume=10 \  <<<<<<<<<<<<<<<<<<<<<<
  -lavcopts vcodec=mpeg2video:<snip>:acodec=mp2:abitrate=224:aspect=4/3 \
  -ofps 30000/1001 \
  -mc 0 -noskip \
  -o "${N}_svcd.mpeg" "$1"


What am I doing wrong?

-- 
"There is usually only a limited amount of damage that can be
done by dull or stupid people. For creating a truly monumental
disaster, you need people with high IQs."
Thomas Sowell