[Solved] convert lower bitrate mp3 to higher bit rate [closed]

Question

You can’t add quality just by increasing the bitrate. It’s like an image – if you have an image that is 24px square, and increase it to 72px it’s just going to get blurry. FFMPEG or any other library has no way of knowing what data was removed when you reduced it to 16kbps (if the data was still there you wouldn’t get any file size reduction) so it has no way of putting it back.

Only way to get decent 48kbps versions of your files is to convert them down from the higher rate originals. If you don’t have access to them any more…consider it a lesson in using backups.

Accepted Answer

You can’t add quality just by increasing the bitrate. It’s like an image – if you have an image that is 24px square, and increase it to 72px it’s just going to get blurry. FFMPEG or any other library has no way of knowing what data was removed when you reduced it to 16kbps (if the data was still there you wouldn’t get any file size reduction) so it has no way of putting it back.

Only way to get decent 48kbps versions of your files is to convert them down from the higher rate originals. If you don’t have access to them any more…consider it a lesson in using backups.