i got 2 mp3 files, one for left and one for right audio channel and would like to merge them to one single stereo mp3, preferably without the need to re-encode them . From what i read joint-stereo mode is a way to go, but i cant find a tool to do so.
How can i achieve this?
(I could just trow them into Audacity but the files are already 96kbps, don't want hurt the quality even more)
EDIT: i have Windows 7 on my PC, Ubuntu and Xp in a virtual machine and access to a MAC OSX Tiger, so any tool for any platform is fine (except Lion-and-up-only application)