mpeg file has sound only coming on left side...

[matvangogh]

i have an mpeg file that has sound only coming on left side of the stereo speakers...
the right speakers has no sound
how to i take that file and convert it from left channel into a dual mono ( on both sides)?
please help
i have tmpgenc plus 2.5
i tried it with that to make it dual channel or joint stereo. no dice.
any other converters can help me? to convert a video from left side audio to both sides ( and keep the video and audio in sync?

[Baldrick]

this is no advanced video conversion. moving you.

open the mpeg in goldwave
copy the right channel to the left by drag and drop or convert to mono.
save as wav and then convert it mpa/mp2 with for example ffmpeggui
add back the mpa/mp2 audio using tmpgenc, file->mpeg tools->simple multiplex and choose the original mpg and add the new audio.

[matvangogh]

ok thank u . do u know of an easier way to do it all in 1 or 2 step with just or1 or 2 programs?

[Baldrick]

probably possible with mencoder or ffmpeg but I can't remember the commands....they are command line tools.

[matvangogh]

thank you again
if u find a windows GUI based program for a 1 or 2 step let me know ok
thanks

[matvangogh]

i just did it.its now mono on both sides. works perfectly!
thanks again