Mike Barr OpenV2K

OpenV2K Overview

Audio Waveform Zero-Crossing Pulse Stream Generator
OpenV2K is an open-source Python application that converts arbitrary audio — including both natural speech (via live microphone), and diphone synthesis (via text-to-speech engine) — into pulse-modulated radio-frequency (RF) waveform. The signal chain can be used to transmit via a software-defined radio (SDR), or to save the raw IQ samples to disk, and generate spectrograms automatically. Integrates toggled DSP filters, into a PyQt5 GUI, that's intended to be usable by technicians.

The project's signal chain is based on microwave auditory effect literature, most notably Sharp and Grove's demonstration published in 1975, that pulse-modulated microwave energy could convey intelligible words, building on Frey's work. The app currently integrates Sharp's modulation technique: detects every zero-crossing of the audio waveform, as depicted in the GitHub profile thumbnail. Home users get to see, what made the US Army's "V2K", and US Navy's "MEDUSA", function, in real-time.

This prototype was built on the shoulders of giants. Thank you to SME biophysics researchers, that publicly released their work, 5 to 50 years ago; the FOSS software package developers; the open-source SDR hardware platform developers, and Claude.

Sandbox / Tutorial

For screenshots, video, and functional pre-alpha Python software: https://github.com/OpenV2K/Sandbox

Tell me what you want to know, and I'll integrate your constructive feedback.
Intended to run on any old laptop that can install Ubuntu 26 Linux.
See the Tutorial to reproduce my environment and get started:
https://github.com/OpenV2K/Sandbox/tree/main/Tutorial

Features Implemented

Audio Waveform Zero-Crossing Detection, SDR Pulse Modulation Output, Raw IQ Recording, Waterfall Spectrogram Generation, Live Microphone Input, eSpeak/MBROLA Text-To-Speech Engine, TTS/RawIQ Output Length Comparator, Signal Conditioning Filters, Noise Filters, Pulse Shaping Filters, Rectangular Pulses, Duty Cycle Meters, Adjustable Pulse Width, Adjustable High Pass and Low Pass Filters, Automatic High Power Calculator, Event Log, Tooltips, Dependency Checks, and 49 Languages Supported.

Compact PyQt5 GUI

All GUI descriptions, text labels, and tooltips, automatically translate, when selecting another language.
You will need to download the Translation.xml file from the Sandbox, and place it in the same directory.
Use the language dropdown in the upper left corner. When available, a regional accent dropdown is shown.
Language selection, also selects which eSpeak/MBROLA language voice pack to use for TTS, automatically.

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GNU Radio Companion-Style Flowgraph (160)

Project Scope Block Diagram

Microwave Absorbing Foam: Acoustic Transducer

Excerpt from Chapter 7.2.1, Page 178, Auditory Effects of Microwave Radiation:

In attempting to elucidate the mechanism responsible for microwave-induced auditory sensation, a microwave exposure system was set up in 1973 at the Walter Reed Army Institute of Research in Maryland. Investigators found that carbon-impregnated polyurethane microwave absorber (Eccosorb WG4, Emerson and Cuming) acted as a transducer from microwave energy to acoustic energy [Sharp et al., 1974]. If the microwave absorber was placed between the human subject and the pulsed microwave source, the apprent locus of the audible click moved from the observer's head to the absorber. Using a microphone and sound level meter, sounds produced by pulsed microwaves in absorbers of different sizes and shapes were detectable for absorber sizes as small as 4 mm square by 2 mm thick. Several other types of microwave absorbers also produced audible sound. However, aluminum foil had to be crumbled before audible sound was detected from it. Thus, the observed sonic phenomenon implicated a connection of microwave absorbtion to pulse-induced auditory sensation in humans, but also provided a counterexample against radiation pressure as an operating interaction mechanism.

Reference Materials

Why Would I Do This?

Intellectual revenge. Please place any outrage you feel where it's most appropriate. Do you mind that I'm doing praxis over here?
Showing me how brain damaged you already are, with character attacks and conflation, does not make this capability, not work.
This project's ultimate end goal, is both safe, with microwave absorbing foam acting as a transducer, instead of a human cranium (so observers can still hear the output, without the brain damage potential, not that the average American would notice); and legal, when transmitting on HAM bands, with valid license. I have not become death, destroyer of worlds, for disinfecting with sunlight, what came before I was born. I'm not the assholes who developed similar capabilities in secret, for decades; who then deployed classified R&D, on unsuspecting civilians, like me. I adopted the term "V2K" from the US Army: from a 2008 WIRED magazine article. I'm validating the term, with FOSS RF engineering, so quacks cannot continue their health fraud, on targeted civilians. Unfounded conspiracy no more, I've recreated in free software, what has come before, in expensive lab hardware. How is this RF hacking? It's a vulnerability disclosure that applies to all of humanity. There is no firmware patch. Do you care yet?

Developer Contact

🔭 I’m currently working on: the core software for the OpenV2K project
💬 Ask me about: how to punch Nazis really hard
📫 How to reach me: [email protected]

Dear targets: In clinical terms, this is pulse modulation of the microwave auditory effect. In slang, this is "Voice To Skull", a one-way audio channel. This is not two-way synthetic telepathy, and never claimed to be. There were never any brain-reading components. Many conflate "V2K" as having thought identification capabilities. I think of them as disinformation artists.

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