[PLUG] Audio normalization / static removal in Linux

Rogan Creswick creswick at gmail.com
Mon Oct 18 22:14:19 UTC 2010


On Mon, Oct 18, 2010 at 3:09 PM, Aaron Burt <aaron at bavariati.org> wrote:
>
> Before you go too much further, I've had the same symptom due to the player
> not being able to keep up with the framerate.  Is it any better if you
> disable video output and/or use mplayer from the commandline?  How did you
> strip out the audio for Audacity?

The bursts of static have been observed in a few different players,
and on at least Linux and OS X.  They're also visible in the waveform,
so I'm convinced it's not a player issue.

I stripped the audio with ffmpeg:

$ ffmpeg -i video.m4v audio.wav


--Rogan

>
> As for fixing the audio, you could run the whole talk through a compressor
> or AGC in Audacity, or spend a couple hours manually scrubbing the
> glitches.  Audio editing often involves a lot of drudgery and coffee.
>
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