Could it be possible to make tones with "Make your own Mein Fraulein station" kit to use for encryption? http://www.homelandstupidity.us/2006/08/05/phone-numbers-stations-mystery-revealed-at-defcon/
On Thu, Apr 24, 2008 at 4:30 PM, Ian Stirling <[EMAIL PROTECTED]> wrote: > Crane, Matthew wrote: >> >> Not sure if there's a specific project, I'm hoping to do some sort of >> "analog" encryption, with audio effects and inverse effects, such that >> it does not need to be digitally decoded, where the excellent pattern >> recognition engine in the brain does most of the work. >> > > You can't do much. > It has to 'sound' voice-like to the multiple codecs in the signal chain of a > GSM call, or the codec just discards the sound. > > Listen to a voice over a good GSM line. > It's quite well reproduced. > > Now, listen to an assortment of music. > Some will come out quite well, and be reproduced much like they came out. > Some are utterly shredded. > > _______________________________________________ > Openmoko community mailing list > [email protected] > http://lists.openmoko.org/mailman/listinfo/community > _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
