Hello Florian,

You got me there! Of course a wide frequency range is needed to offer
a better result than
the amplitude tracking. I am not familiar with the A-196, so all
conclusions were purely
based on a healthy mix of semi-theoretical assumptions and pure
speculation... ;-)
However, this book was very effective: 'Signal Processing, Speech and
Music' by Stan
Tempelaars published by swets&zeitlinger.
About the lin/log converter: It might probably be more effective to
get a hold of the
schematics of a proper frequency demodulator and build it together
with some of my
solder-sniffing friends.
Thanks again!

Ernst


http://www.dendriet.nl
http://www.xs4all.nl/~eloo999