Having said that, I wish ACID had audio ducking not so much for Allison but for links on monitor. It's nice to monitor a link (my two meter repeater from UHF for example) and be able to talk over it and have the link audio duck a few dB.
In zipper, we can set the Nominal Telemetry Level and the Duck Level. I run -10 dB nominal, and -15 dB duck. With these levels, Allison doesn't blast you out of the water, and if someone (somewhere) has the mic keyed, she's ducked out an additional amount, BUT you can still hear what she is saying - even along with a loud mouth (such as myself). While I refer to "she" (Allison) all telemetry, including CWID's and whatever is controlled by these settings.