separating voices and music in movie scenes

[Christian Kaernbach <auditorymail@xxxxxxxxxxxx>]

Dear List,

For a study on the emotional impact of movie scenes with and without 
music we would love to learn of possibilities to separate the voices of 
a dialog scene from the underlying music. We want to take classical 
movie scenes from DVD or the like and produce versions without music, or 
without dialog.

Is there any ready-made software that could us help to do this? Or a set 
of software routines that we could use? Freeware would be preferable, 
but commercial software could be considered. The quality of the result 
is more important than the price (as long as it it reasonable). If 
algorithms are available but "way too complicated for you, you naive 
consumer-type end user", we would be happy to start a cooperation.

Any hints welcome.

Best,
Christian Kaernbach