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deinvert: A Voice Inversion Descrambler - RTL-SDR
https://www.rtl-sdr.com/deinvert-a-voice-inversion-descrambler/
Voice inversion scrambling is a simple and old security method used on analog radios to try and obscure conversations from being listened in on by people with scanners. It works simply by by moving the low frequencies higher and the high frequencies lower, or in other words inverting the audio. A descrambler is then required to recover the true audio, otherwise …
absorptions: Descrambling the voice inversion scrambler
https://www.windytan.com/2013/05/descrambling-voice-inversion.html
Voice inversion is a method of scrambling radio conversations to render speech nearly unintelligible in ordinary radio receivers. As the name implies, it inverts the audio spectrum of a signal, making the lowest frequencies the highest and vice versa. It is not considered encryption; it's merely a sort of Pig Latin on analogue signals.
Audio-Scrambler IC Easily Enhances Voice-Call Link ...
https://www.electronicdesign.com/technologies/analog/article/21808280/audioscrambler-ic-easily-enhances-voicecall-link-security
This full-duplex scrambler/descrambler IC provides basic, first-level security for voice-audio channels via a simple frequency-inversion scheme, and accommodates in …
Download Voice Descrambler 1.0 - softpedia
https://www.softpedia.com/get/Multimedia/Audio/Other-AUDIO-Tools/Voice-Descrambler.shtml
Voice Descrambler descrambles band inverted encrypted transmissions, usually found on VHF/UHF. It uses a NCO (numerical controlled oscillator) to …
Voice Inversion Descramble Software | RadioReference.com ...
https://forums.radioreference.com/threads/voice-inversion-descramble-software.12013/
Scrambling example: Analog audio inversion. Encryption example: Analog or digital DES . Last edited: Sep 4, 2007. C. comsec1 Guest. Sep 4, 2007 #15 ramsey kits the ramsey kits I had worked just fine, the older one was better because of the way it was powered up, its been many years since I moved from southern bergen county and had to use them.
Real Time Voice Scrambler and Descrambler - YouTube
https://www.youtube.com/watch?v=U24Q6sTnlDo
hArtes Design Contest 2009SIPL-Team Electrical Engineering DepartmentTechnion, Israelhttp://sipl.technion.ac.il/Info/Teaching_Projects_18-1-09.shtml
Voice : Voice Software - The DXZone.com
https://www.dxzone.com/catalog/Software/Voice_tools/
Voice descrambler - This program descrambles band inverted encrypted transmissions, usually found on VHF/UHF. It uses a NCO (numerical controlled oscillator) to re-produce the originally inverted audio band. Use it only if legally permitted in your country. I assume no responsabilities deriving from its use. Standard disclaimer applies
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