View single post by joecioppi
 Posted: Sep 23rd, 2009 12:57 PM
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joecioppi



Joined: Sep 22nd, 2008
Location: Doylestown, Pennsylvania USA
Posts: 130
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Dear Friends,

Listening to raw noise sources is very tiring. A friend was listening to noise on a VHF radio at  around 175 Mhz. She could hear voices that conversed with her but the accompanying noise nearly drove her mad. This is typical of a direct radio method. She asked me to build a listening device that could relieve her of the distracting noise. Since I've had favorable results with random scanning of FM broadcast vocals, I reasoned that random activation of a speech synthesis device would result in voices without audible random noise. In fact I was able to use the "Talker Board" kit from Bill Chappell to produce synthetic speech from the noise on her VHF radio. She has received messages by this device without the tiring noise.

I'm currently experimenting with more natural sounding speech chips and methods to sort messages from random noise.

Joe