[MPlayer-users] Cleaning up sound

Bradley Alexander storm at tux.org
Mon Jun 3 04:58:01 CEST 2002


Hey all,

I have been using vcr to record off of my Hauppuage (sp?) tv capture
card, with pretty decent success. The resulting avis are kind of large
(recorded Patriot Games last night and it was about 2.1GB). The problem
is that the sound is bright to the point of being distorted, especially
the high frequencies. 

Is there a way to clean up the sound for me? I have several pretty
decent movies, and I would like to be able to go back and clean up the
sound. I suspect that I won't get the same quality going back later, but
I would like to at least make them playable. I have been using mencoder
three-pass DivX to postprocess the videos I have been capturing, e.g.

mencoder cpdanger.avi -ovc frameno -o frameno.avi
mencoder cpdanger.avi -oac copy -ovc divx4 -divx4opts br=505:deinterlace
-o clear_and_present_danger.avi -pass 1
mencoder cpdanger.avi -oac copy -ovc divx4 -divx4opts br=505:deinterlace
-o clear_and_present_danger.avi -pass 2

Is there anything I am missing here? Also, I see in the mplayer docs
that you can use any of the options with mencoder? And in my case, would
it buy me anything? For instance, on the postprocessing, could I add
-aop list=volnorm or some other combination of plugins in mencoder to
get rid of some of the high frequency distortion?

Thanks,
-- 
--Brad
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