Hi Im having some problems with Audition CS6 mac. I have the full master collection and only encounter this issue with Audition.
On my Macbook pro
I use my internal speakers/audio or a vrm box audio interface, occasionally Ill use a fasttrack pro to record. My problem occurs after I use the audio interface. When I next open Audition set up for the built in speakers/audio and hit play, it says playing but nothing plays.
When I open Audition after using a external interface going back to my built in macbook audio I get a pop warning that:
"Your systems audio hardware settings have changed. Would you like to go review Audition's audio hardware preferences?"
I click yes, go to that everything is set for internal mac audio,
hit play, says playing bottom left, then just sits there.
I noticed today when it did this, that it if I go into the Audio Channel Mapping Preference, it shows what ever audio interface I used last on the output/not working on it. I am unable to change theses settings.
I reboot after changing audio interfaces, etc.
I can delete my Audition preference files in my user folder and it functions again, but that also entails rescanning all plugins which takes some time.