[HCARC] System Fusion.

[Kerry Sandstrom]

I've found a couple interesting things regarding System Fusion and D 
Star.  The first is a paper on the AMBE Codec that both systems use and 
the problems with patents and licensing for same.  Authors estimated 
cost for just the license fees is $100 per unit which is built into the 
price you pay.  That web address is 
algoram.com/dcc2014/AMBE_exposed.pdf.  By the way, the author is trying 
to promote a software based open Codec system.

The second item is a site that has the sounds of various digital 
systems.  It is www.w2jsw.com/radio_sounds.htm/.  Fairly far down the 
list you will see D Star and System Fusion.  One sounds like white noise 
and one as a bit of a pulsing tone in it.  There are also numerous other 
sounds in the list including some recovered P25 digital voice which will 
givw you an idea of how natural the voices sound.

Kerry