De mixing/Re mixing software

[GubGub (Al)]

I don't in any sense regard myself as a musician and I may be in the realms of fantasy here but I dabbled in songwriting for about a decade from the late 80s through to the late 90s. I made demos of these songs on a Tascam 4 track recorder and these were then mixed down to two track stereo cassettes. I have recently made digital copies of the cassettes and in doing so I have discovered a bunch of songs which I rather like but which are let down by the recordings (cheap keyboard sounds and synth bass).

Just for my own amusement and because I will shortly have much more time on my hands I would like to try and "correct" these recordings to my own satisfaction. What I have in mind is to de mix them to remove the elements that I don't like and then re-record those elements with more sympathetic instrumentation using something like Protools.

My question therefore is, does anyone know of any software that would enable me to demix from two track stereo digital files in order to split out the various elements into multiple tracks and delete the elements I don't like, leaving a digital multitrack onto which I could record additional instrumentation? It is a big ask I know but I figured somebody here might have some idea.

[Andy]

Pro Tools? As I recall there's a free version.

[GubGub (Al)]

Pro Tools? As I recall there's a free version.

Thanks Andy, yes I think Protools is the way forward for re-recording but I don't think it can handle the de-mixing that I need to do first.

[PaulT]

Al, I can't advise on the techy stuff, but...

if you could demix, you could have your original demos, plus new versions with re-recorded instrumentation, then you could produce new acoustic demos, then add instruments, do an instrumental version, etc etc

Enough for a boxed set, there! "The Complete Gubbins" perhaps? ;-)

I'm not helping, I know....