What I would like to achieve:
Based on a bank of prerecorded message (wav.) to passengers such as greetings on boarding, reaching cruising alt, warning for turbulence, preparing for descent..etc, (with several possible versions/voices in each category).
All these sounds coming from behind the cockpit door.
Have a software which plays them randomly as they are triggered by flight parameters.
I tried Pete's Esound but cant get the random effect.
Any hint