Added PIC tag ...

> I am interested in designing an LED VU meter based on a PIC for use in
> professional audio. I know there are several designs around on the net fo=
r
> consumer use BUT they all rectify the incoming signal before processing i=
t in
> the PIC. This limits the ballistics that can be emulated and all of the e=
xamples
> I have come across so far have particularly poor ballistics. For professi=
onal
> use I would want to AtoD the audio and carry out all processing inside th=
e
> PIC.
> Has this been done already or am I breaking new ground.
>=20
> Any help appreciated.

Are you looking at doing a VU meter or a PPM?

http://en.wikipedia.org/wiki/Peak_programme_meter

many of the LED VU meters seem to combine the two functions by having a sin=
gle bar showing the peak while the level dances around under it. The bar sh=
owing the peak is then controlled in the manner of a PPM.


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