changing a file from mono to stereo

[Cheryl Homiak]

Ok, so the question still remains.
I have mono voice cassette recordings. I would like the results of my wav or ogg
files to come out of both speakers. I can certainly achieve this effect by using
certain mixer settings. But is there anything I can do in the original recording
of the casettes to files or in converting them after the wav files are made so
that the sound will come from both speakers when they are played without having
to change mixer settings?