[PD] Time-based audio recording and analysis

[Jared]

I'm interested in having a PD function which, when activated, records 
audio for a set amount of time (probably about 5 seconds), performs an 
analysis on that recorded audio, and then outputs the result. I'm 
specifically doing frequency analysis but can't imagine that would matter.

Any suggestions on how to allow something to run for a specific amount 
of time would be appreciated. I've searched the list archives, and will 
continue to do so, but most of the time-based stuff I'm seeing is how to 
keep track of time rather than do something for a set length of time.

Thanks for your help!
-Jared