Hi mate! You can use editors loike Sony Vegas to put those vids together and synchronize the audio. One problem for You (I'm just guessing) is that You would have to use any DAW for multitrack recording instead of camera built-in microphone.
It could be done this way
1. Set the DAW (Reaper, Cubase etc) to record from stereo out (set a good guitar to backing track proportion (backing tracks are not downloadable)
2. After first take import what You recorded to a DAW and make another take with camera. This time we have 2 tracks in DAW - 1 track is take 1 (backing + first guitar solo) and a new track to record GUITAR ONLY.
3. Add 3rd track (again guitar only) and record 3rd take with Your cam.
4. Make an audio mixdown of all 3 tracks
5. import it to video editor
6. Import all 3 videos and synchronize them to imported audio.
7. Turn off all tracks with camera audio (leave only Daw mixdown)
8. Render the movie
I hope It would help You at some point. Cheers!
You are at GuitarMasterClass.net
Don't miss today's
free lick. Plus all our lessons are packed with
free content!