Warning: Bezier keyframes were converted to linear keyframes.

Hey Dkins,
I faced the same problem and then figured out a workaround. You can "Nest" all your audios and then duplicate it. Then Mute the first Nested audio and keep that as a backup.
Now "Render and Replace" all that 2nd Nested Audio and then export that to Adobe Audition.

Thanks,

Art Cave

xyz88888  wrote I like to have very precise control over audio, which does NOT describe the result of "Spline curves" LOL. Can anybody from Adobe reply with insight on Bezier handles in Audition?

This is a U2U forum, so you're unlikely to get a response from the developers... but in reality (IOW, what real filters do), splines are reasonably accurate - at least as accurate as having Bezier controls, which also can't necessarily do exactly what they say on the tin. For instance, if you put an abrupt linear change value into a filter, all you are doing is putting control values into something that cannot directly 'do' what you demanded - you'll end up with either spline or Bezier-like response anyway. If, for instance, you put a stop value on a filter  that said that you wanted it to drop like a stone at 2kHz, then it simply couldn't - it's not in the nature of either IIR or FIR filters to do this, but in the attempt, they will both handle the phase response differently, regardless of what you dial in; the graphic representations are at best just what that says - representations, not actuality. So the chances are that you'll get spurs you didn't think you were going to, regardless of what you dialed in.

So what you're looking at here is simply a control mechanism. Audition has always used either linear points or splines, and I haven't found anything that you can't achieve - relatively easily - with this system. As have many thousands of other users. But one thing we do know about these users is that many of them are rather resistant to change! Every time anything gets fundamentally altered (or removed, or anything else-d) there are howls of protest from all over the globe... and a lot of them happen here...

So please don't run away thinking that Bezier controls are superior in terms of ultimate accuracy - they aren't. They are just a different way of controlling the same filters, producing ultimately the same result, and with a marginal improvement when it comes to altering the slope values. As for volume controls and panning, having linear controls available gives a markedly superior result for a lot of applications (like manual gating) than either Bezier or spline controls ever could.

There is of course one other reason for the control mechanisms in Audition being the way they are - and that is that on filters, etc they represent what you'd find on a real-world equivalent device, and many people find that to be rather important.