Don't Want to Record First Track Twice

[Formula]

I am recording my guitar solo onto a backing track that has my guitar rhythm, and this is playing through my guitar amplifier. So I play the Audacity file and then overdub my guitar solo onto the backing track that is playing through my amp. The problem with this is that I also re-record the original backing track when I am playing/recording my solo, so for the length of the guitar solo, Audacity is recording the backing track twice so the final recording sounds very loud for the length of the guitar solo because of the double recording of the backing track. I was trying to find an option in Audacity that allows my to play an audio file and record over it, but not re-record the original file that I am trying to overdub onto. Does that make sense to everybody???

Actually I'm not even sure if this is possible since I have everything coming through my amplifier and am recording with an external microphone going into my laptop. But is there some other set-up that allows me to listen to a track and dub over it without re-recording the original track??

Maybe there is a way that I can reduce the volume of the first track while I am overdubbing my guitar solo and then have the volume of the original track automatically increase back to normal after the solo.

Thanks in advance.

[kozikowski]

Now you know why the grownups use headphones and a multi-bus/multi-channel mixing board to keep the tracks separate.

http://kozco.com/tech/audacity/wynonna2.jpg

You can do some of this yourself by using headphones direct to the computer and then selecting "Play Tracks while Recording New Ones" in preferences.

If you like to record YouTube and internet audios, then you'll need to turn that off. That's one thing that can give you double volume audio. There's no wiki for that, but you can follow this wiki backwards.

http://wiki.audacityteam.org/wiki/Recor ... e_computer

Koz