I create mobile apps, and use lots of MP3 files in my mobile apps. But, I am not an audio engineer.
Would anyone please tell me if there's any easy and simple way to reduce the size of MP3 files ? (In other words, are there any free or simple software tools that can reduce the MP3 file size ?)
(PS: I am new to this site. Please excuse me if this question does not fit the guideline of the site. Thanks.)