Premiere Pro has a few different audio crossfades: Constant Power (the default), Constant Gain, and Exponential Fade.

The algorithm used to crossfade audio in Audition's "Mix Paste" seems similar to Constant Gain, but it would be much more useful to us if we could get something closer to Constant Power

Steps to hear how this issue affects audio:

1. Open a file with consistent noise (ambient room tone, waterfall; any noise that has mostly consistent amplitude throughout) or create a new file and generate some noise
2. Copy a portion of the noise
3. Mix paste this copied noise atop a different section of the same file with a crossfade duration (somewhere between 0.2 and 0.6s for this example would be best)
4. Notice the dips in amplitude during this crossfade

Bringing this same noise file into Premiere Pro and following the same steps, but using Constant Power fades, you shouldn't be able to detect any change in audio amplitude.

This current mix paste crossfade result makes this feature significantly less useful for me and my team because of those unnatural, unwanted dips in volume/amplitude.

In PP I can add a clip to a sequence then set the start time for that sequence (either manually or 'by first clip' - both are useful).

Why do I want this in Auditon?

Well I have an hour long recording that I want to balance, remove extraneous noises etc and bleep for compliance. All editing will be done in PP - this sweetened track will replace the raw audio files in the multicam sequence there.

For piece of mind I'd like to know that the files are the same - therefore the sweetened bounce should match the timecode of the raw file.

Also all editorial notes are by time of day (e.g. start/stops, swearing etc) so it would be useful to have a reference to that.

I have recently purchased the VST/VST3 plugin Spiff from oeksound for transient fun.

Audition 2020 scanned the effects (I have rescan existing disabled) with no problem, and the effect operates as expected.

Audition 2021 seems to "stop" when it comes to spiff_64 and "never" finishes - I've only let it try for about 15 minutes, but it just sat there, never making progress. I did this twice - the second time it did the scan in a different order, saving spiff for last. However, when it got to spiff at the 97% mark, it just stopped again.

Note, ALL of Audition 2021 did not freeze! I could actually cancel out of the dialog and continue to use the application. However spiff was not added to the plugin list, so I can't use it in the 2021 version.

I am on Windows 10 x64 (kept up to date) and this problem is appearing in Audition 14.0.0.36.