Hello,
I created a simple track with a music maker program. I realized the sound of drums id distorted because I sped up something in the process. Is it possible to fix that? And how? Thank you.
Effect > Change Speed…
http://manual.audacityteam.org/man/change_speed.html
… and Effect > Change Pitch.
http://manual.audacityteam.org/man/change_tempo.html
Change Speed is pretty harmless. The reverse of that is probably what you did to compose the track. However, it’s going to change both pitch and tempo, putting you right back where you were.
Change Pitch is probably what you want. That one tries to change the pitch without changing the rhythm or overall quality. It has to rip the sound apart to do that, though, and sometimes it doesn’t go back together very well.
You might also try Effect > Sliding Pitch Shift
http://manual.audacityteam.org/man/sliding_time_scale_pitch_shift.html
That one does some of the same shifting jobs, but uses a higher quality process and can take a lot longer.
If you shifted things enough, some of the tones may not come back. If the bass drum went down to beyond audibility (into earthquake territory), it may just not come back. Same with shifting up. If you shifted up far enough, the sound will run into sampling errors, Nyquist restrictions and audibility distortion.
If you did the work in MP3, you’re going to have problems with shifting MP3 compression distortion.
We can’t fix everything.
Koz