Creating a voice-only-version doesn't work

Hi everyone,

I have problems with creating a voice-only-version of a song via using the instrumental version. Which means, I imported the version with voice and the instrumental version, I exactly aligned the both tracks, I amplified both tracks to maximum amplitude, I inverted the Instrumental track, I selected both tracks and made “Mix & Render”. But the result is the opposite of what I want to have: The instrumentals are louder than before and that’s everything which changed. If I made some errors I don’t recognized, then please watch my video at https://www.youtube.com/watch?v=BbtoV5g6nfU where I screen-recorded that all. I have this problem not only with the song I used in the video, I have the same problem with every song.

Can someone help me?
Thanks in advance,
max.wenzel.kk

See http://manual.audacityteam.org/o/man/tutorial_vocal_removal_and_isolation.html#Case_3:_Vocal_Isolation . For your method to work the instrumentals must be identical in both tracks. They won’t be if you pulled arbitrary files from the internet. Lossy formats like MP3 won’t help.


Gale