[MEncoder-users] is this a good workflow?

[Jorge Fábregas]

On Monday 10 May 2010 10:39:26 Rick C. wrote:
> 1.  extract the audio from original file:  mencoder original_file.mpg -of
> rawaudio -oac mp3lame -ovc copy -o audio.mp3 
> 2.  will convert audio.mp3 to audio.m4a outside of mencoder to avoid using 
> libfaac

Hi, I can tell you about the first two steps. You are loosing quality by 
converting from whatever source the audio is to mp3 and later to aac.  Skip 
the mp3 part by converting to PCM (raw audio) and then convert to your final 
destination format (AAC).  To convert to PCM (creating a wave file) do this:

mplayer original_file.mpg -ao pcm:fast:file=output.wav -vo null

Then convert output.wav to AAC...

HTH,
Jorge