VU meter

[liamlambert]

I have been working on a project for sound cuing and it is up and  
running with some help from from this list thanks again every body.
Now I would like to add a VU METER  to the project.


Meters which monitor audio levels are typically one of two varieties:  
VU (Volume Unit) or PPM (Peak Program Meters). Though both perform  
the same function, they accomplish the function in very different  
manners. A VU meter displays the average volume level of an audio  
signal. A PPM displays the peak volume level of an audio signal.  
Analogy: The average height of the Himalayan Mountains is 18,000 feet  
(VU), but Mt. Everest's peak is 29,000+ feet


Has anyone got any idea how to go about this is this possible.

Liam Lambert

liamlambert at mac.com