Sonar 8.5 Producer: Normalizing Fade-ins and Fade-outs

Hi. I think automation would be your best option.
There might be plugins that will do something like that.
Others might know better.
All the best.

Annabelle
 
In other words, when audio is carefully analyzed, is there a specific shape of waveform that represents a fade-in or fade-out?

 
 
Yes it looks like a less than/greater than sign, except not so linear. 
 
Some sound waves when looked at (say a drum hit) would start from a flat horizonal plane and increase upward and downward very sharply, but in the basic form of the < less than sign. And the time it would take for that upward/downward increase would be in milliseconds. That would be the fade in.
 
A cymbal wash would start out on that horizonal plane and slowly increase upward and downward over a few seconds, but it would still follow that less than sign <.
 
And for the fade out it would be the opposite.
 
I hoped I have helped. If I'm off base, just ignore me! : )

Zargg

Annabelle

Zargg
Hi. I think automation would be your best option.
There might be plugins that will do something like that.
Others might know better.
All the best.

Will this work with fade-ins and fade-outs that were originally created via "destructive editing"? Even though I'm blind, I'm curious as to how fade-ins and fade-outs are presented to those who are sighted. In other words, when audio is carefully analyzed, is there a specific shape of waveform that represents a fade-in or fade-out?

It should, at least up to a certain degree. I think you will have to try and hear for yourself.
In general, I would describe a fade in/out as a V lying on its side.
As another option: A plugin like Waves Vocal Rider could perhaps do the trick as well, as it is an automatic leveler.
There are probably several others that do something similar.
All the best.
 

Vocal Rider? Sounds new to me. What exactly does it do?