I am using Audacity 2.0.5 on windows 7 OS. I require your help in automating the process for my requirement. My requirement is to insert 10 seconds of silence at the end of each mp3 file. I have more than 3000mp3 files of various lengths for which chain process is great. can someone guide me.
Be aware you will degrade each MP3 by doing this because you will have to re-encode the MP3.
There are direct MP3 editors with limited editing features (cut/paste, trim, split/join and change volume) that don’t re-encode MP3’s, and so don’t cause degradation. I don’t think those editors would have a simple way to insert silence at the end of each MP3 as a batch process. You would probably have to append a specially prepared silent MP3 to each MP3.