wrote in message
oups.com...

I am aware of "standard" audio processing, but the refference giving
75uS on AM through me for a minor loop. Up too long and the old brain
was a little too fogged. I tried several local AM stations with 75uS
and 50uS
and they soundeed very muffled. The exact oppositte of what I am trying
to do.


Here ya go, straight from the National Radio Systems Committee:

http://www.nrscstandards.org/Standards/nrsc-1.pdf

However, in the section labeled "scope", there's a sentence which reads:

"Compliance with the standard is strictly voluntary."

Frank Dresser