automatic recording start with pre/post trigger

I’m a new user and hoping to use Audacity to capture short duration bursts of sound when I’m not around to control Audacity.

It would be nice to be able to set a trigger level to start a recording, and set a few seconds of pre-trigger and post-trigger so that the recordings are short and capture mainly the event or sound that caused the trigger. The file could be automatically saved/exported with say project name/date/time.

Thanks

Thanks for your request.
This is quite a common feature request which I think the developers intend to look at sometime.