An application requires that the mp3 files it receives are encoded with 2 channels (stereo), but the original files have only 1 channel (mono).
We use Lame for conversion, but i fail to make it clone the mono channel and create a fake stereo.
lame.exe -m j mono.mp3 stereo.mp3
-m d or
-m s doesn't seem to work either. Is it possible to do this with lame?