From: jim@tadpole.com (Jim Thompson)
Date: Sun, 7 Feb 93 02:03:20 PST
To: thug@phantom.com
Subject: Re: Compressed/Encrypted Voice using Modems
Message-ID: <9302071001.AA00783@ono-sendai>
MIME-Version: 1.0
Content-Type: text/plain



> From: Peter Shipley <shipley@tfs.COM>

> >And why are you limiting this to V.32 (9600bps)?  V.32bis (14.4k bps) modem
> >chips cost maybe 20% more than v.32 chips in quantity.
> 
> at Interopt I heard some voice demos that were at 9600 4800 and 2400 baud
> the 2400 sounded a phoneme chip but was *very* resionable.

Quite likely what you heard were 9600/4800/2400bps (bits per second),
not baud.  The two are different.  2400bps compression of voice is
quite a bit beyond current GP CPUs.

Also, note that 9600 baud (V.32 carriers) are based on a 2400bps carrier.
(And if they're not, I'm sure someone will correct me.)  2400 baud modems
are based a bit rate something less than 2400bps, though I can't remember
exactly what it is right now.

Jim