[XCSSA] modem signals

[xcssa@xcssa.org]

On this same vein, has anyone seen or know of an open source project that 
can send/decode 45.5 baud Baudot encoding (i.e. TTY/TDD signals) through a 
sound card?  I have seen some crappy Windows only commercial stuff, but it 
would be very handy if there was something that I could actually use.

Thanks,
Nick

xcssa-admin@xcssa.org wrote:
> Hey one of my projects is to decode recorded modem transmissions using
> a computer and its sound card (or operating directly on digital
> recordings).
> 
> I'd be doing it for fun, to play with digital signal processing.
> 
> Anyone know where I can get sound files of modem transmissions?
> 
> I intend to start with really slow ones and work up to faster speeds
> (which usually mean more complicated encoding).
> 
> I know I've seem amateur radio modem recordings on the innernet
> somewhere, which I might do after regular analog phone modems.
> 
> Travis