[FFmpeg-user] conversion from h.264 to mp3 adds 0.12 seconds of silence to beginning of file

[Lou]

On Tue, 4 Nov 2014 13:09:10 -0500
Reid Oda <roda at princeton.edu> wrote:

> Hi list,
> 
> I'm doing audio/video analysis on videos downloaded from youtube. As part
> of the process, I need to extract the audio to a form that can be opened by
> my audio analysis software. I've been using mp3, but I recently discovered
> that ffmpeg adds 0.12 seconds to the beginning of the .mp3 file. This
> causes sync problems.

Your ffmpeg command and the complete console output are missing.

Does this also occur if you use lame?