How Do You Make A Music Track With A High Pitched Female Voice?
You can do this with any basic pitch shifter although it will speed up and change the key of the track if you do it this way. If the original track is not female, you will have to add vocal noise. It is difficult to change the vocals in a track in situ as they occupy most of the frequencies so changing them will change the other instruments. There is a program called Autotune that does a very good job with this although you may have to use filters to select certain frequencies to change as it will regard every sound as vocals.