Speech Scrambler Circuit


Posted on Aug 19, 2012

Using digital techniques, this circuit accomplishes the frequency-inversion algorithm via digitization of the audio, inversion of the sign of every alternate sample, and D/A conversion of the resultant data. The result is an inverted frequency spectrum.


Speech Scrambler Circuit
Click here to download the full size of the above Circuit.

Because the circuit has two channels, this system can be used in a full duplex two-way telephone scrambler.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Wireless Coupler Terminal Interface
12V Battery Charger for Lead/Acid
build program remote control
Alarms and security related schematics
Parking sensor circuit
TDA8571J car audio amplifier electronic project circuit design
Hammond T-100/T-200/T-500 MIDIvice
Electric Guitar Preamplifier
Hardware Schematics
The FM demodulation circuit using TA7343



Top