I have uploaded a track that was engineered with a fadeout. Is there a way to reverse this? This was not done by me in audacity using the fadeout effect, so I can’t hit the reverse button.
Is there a way to reverse this?
Not back to the original, no. What you get with normal Audacity tools is a rapidly escalating noise level followed by a drop to silence too soon at the end.
You can get part way there using the “Adjustable Fade” effect to gradually increase the level (see: https://manual.audacityteam.org/man/adjustable_fade.html)
It is impossible to completely “undo” a fadeout because the end of the fadeout is silent (no audio, so nothing left that can be restored).
These settings get about as close as is possible in one step: