[FFmpeg-user] MP3 files

[Lou]

On Fri, 11 Sep 2015 07:37:58 -0400
Bruce Therrien <musicweb at cox.net> wrote:

> Can ffmpeg be use to extract a 30 second 
> demo from an mp3 file

Yes. See documentation on -ss and -t/-to options:
http://ffmpeg.org/ffmpeg.html#Main-options

ffmpeg -i input -c copy -ss 10 -t 30 output

> and play it on the web?

Sorry, but I don't understand what you mean by "play it on the web".