X13-VSA Voice Lie Detector
The world's Nr. 1 Computer Voice Stress Analyzer - Works in any language!


Imagine if YOU had the power to know the Truth..

The most advanced voice analysis technology available today

X13-VSA is a Voice Lie Detector Software and the world's Nr. 1 Computer Voice Stress Analyzer
. Get the most technically advanced Voice Stress Analysis system that has been produced. Quick to use, very easy to learn, cost-effective and over 98% accurate.

Now you can turn your computer into a Truth Verification Device and
a real portable Voice Polygraph. The software is a fully computerized voice stress analyzer that allows you to detect the truth. This is the most advanced and cheapest VSA system in the world and the only Lie Detection Software which you can trust.

X13-VSA is a Voice Lie Detector Software and the world's Nr. 1 Voice Stress Analyzer and the most advanced and cheapest VSA system in the world

Truth and Lie Voice Detector - The “next-generation”. A high-accuracy, advanced and easy-to-use Voice Analysis Technology (Speech Analysis, Truth and Deception Technologies) for defense and civilian markets. This is the evolution of Voice Stress Analysis used by local, state, federal and international agencies, US Military and Intelligence units - Tested and approved! Our software doesen't use the controversial “Layered Voice Analysis” (LVA) technology.

Prof. Dr. Marco Strano, Psychologist and Criminologist, Italian State Police
Prof. Dr. Marco Strano, Psychologist and Criminologist, Italian State Police and President of the I.C.A.A. 1984 – 2001 Special Agent in the Italian Intelligence Service - organized crime section. From 2001, Lieut-colonel Psychologist and Profiler, Italian National Police (International Crime Analysis Association).
Since 2010 Prof. Dr. Marco Strano is X13-VSA PRO Cobra user

Our client base covers law enforcement agencies, law firms, journalists, professional investigators, corporate clients and institutions and private persons from around the world
*Our client base covers law enforcement agencies, law firms, journalists, professional investigators, corporate clients and institutions and private persons from around the world. We are unable to disclose the identity of all our international clients, agencies or companies due to strict privacy protection and legal restrictions.

“Dedicated to Truth”
Protect yourself from Lies, Theft & Fraud

X13-VSA is an innovative, advanced and sophisticated software system and a fully computerized voice stress analyzer that allows you to detect the truth instantly. The system is based on an ingenious new and old algorithm to detect vocal stress. It is a voice emotion analyzer, capable of detecting deception and lies using the most advanced technology.

The technology was originally developed for military use
And now you can use the same technology to detect lying and deception

Law enforcement agencies worldwide use VSA technology alongside polygraph

Over 180 police agencies wordwide using the X13-VSA PRO Cobra technology

Facts about the Software:

- The software is clear, elegant, and so easy to use that you can have it up and running within seconds;
- There is no need to waste your time and money on seminars or training to use our Voice Stress Analyzer Systems;
- It is A High-Accuracy and Easy-to-Use Truth Verification Software;
- Works in any language!
- Professional studies have shown a VSA validity, reliability and accuracy at above 97 Percent;
- Our VSA technology is the most advanced and cheapest VSA system in the world;
- Each year, more police and government agencies use this modern technology as their primary lie-detection tool;
- Worldwide clients in North and South America, Middle East, Europe, Asia, - Africa, Australia/Oceania and even in the Antarctica;
- Our Clients are governments, law enforcement, military, prisons, insurance companies, customs, borders, financial institutions, private individuals and more.
NEW: All our X13-VSA Voice Lie Detector versions are now PortableApps, compressed to decrease size on disk and increase performance when running from a slow media.

Voice Stress Analysis is a type of Voice Stress Analyzer which measures stress in a person's voice. The use of Voice Stress Analysis (VSA) as a lie detector became popular in the late 1970s and 80s and today is the VSA analysis an alternative to the polygraph as a method for lie detection. VSA systems are already widely used in police, insurance fraud investigations and by other organizations.

Researchers found that frequencies in the human voice in (most are the 8 to 12 Hz range) are sensitive to honesty. When a person is being honest the average sound in that range is generally and almost below 10 Hz, and is usually above 10 Hz in dishonest situations.

All muscles in the body, including the vocal chords, vibrate in the 8 to 12 Hz range. This is considered a feedback loop, similar to a thermostat/heater that will maintain an average temperature by raising the temperature a little above the setting, switch off, and not come back on until the temp is a little below it.

Just as the temperature swings up and down over time, so too do the muscles tighten and loosen as they seek to maintain a constant tension. In moments of stress, like when you tell a lie that you dare not get caught at, the body prepares for fight or flight by increasing the readyness of its muscles to spring into action. Their vibration increases from the relaxed 8 to 9 Hz, to the stressful 11 to 12 Hz range. This is known to be caused by the production and release of a chemical, as explained in the Scientific American Article "Psychological Tremor" Vol. 224, No. 3.

Such of vibrations are a measure of stress levels of which change from moment to moment. Everybody knows that stress, also known as anxiety or being up-tight, can be brought on by a simple thought or memory; of a loved one's passing on, for example, or suddenly remembering some dangerous obsticle in the future. Some people have high average stress levels, and some have low, and averages changes from day to day along with mood. What all people have in common is that their stress levels are constantly changing within their current range, changes which indicate the "percieved jeopardy" or "danger" of statements being made. A lie is often dangerous, humiliating, or injurous to get caught at, so lies tend to stand out on stress measurments.

This is a revolutionary new software product that work with your PC or laptop computer for quick and reliable recorded truth verification. Anyone with a computer can use it. Our VSA System looks for changes in voice tone and frequency and performs thousands of mathematical calculations to identify signs that someone could be lying.
You will be in a position to detect deception and verify the truth and you can record conversations for later analysis. You may analyze from TV or radio, or even in a face-to-face conversation, without the subject being aware.

You can make a Real-time analysis or take any recorded conversation, record yourself, spouse, friend, lover etc., (Audio Recording Software is including in the package). Of course when you do this make sure you obtain consent from the person whose voice you are analyzing!

Our VSA System is effective in ANY SITUATION and is applicable to ANYONE, including but not limited to: Criminal investigations, violent crimes, robbery, internal affairs investigations, or pre-employment examinations, insurance fraud investigations, screening (eg: Airports) Check of visa/passports, Witness Statements, covert counter intelligence and much more. The use is limited to your imagination.

Our Voice Stress Analyzer is a full computerized voice stress analysis software for human lie detection, Love detector for negotiation & entertainment and a is a real lie polygraph software. Your Personal Lie Detector detects deception in the human voice using Voice Analysis Emotions. A Truth & Deception Technologie for (polygraph) lie detection services and more.

Our VSA technology is one of the most advanced Voice Analysis systems ever and the easiest to use. It is powerful and it go deeper and faster than any other voice analysis technology (see REF: 2019).

It is a professional tool for the Businessman or for Personal use, Governments and Security Organizations, Law Enforcement agencies, Police, Military or Private Investigators. It is a decision support tool, more accurate than a polygraph and in combination with your own judgment and common sense will be a great assistance.
Our Voice Stress Analyzer is also a tool to detect lies you hear on your Skype phone. Just record all your phone calls with a freeware application and monitor them with our voice-analysis technology for lies and high stress levels.

X13 Systems has been sold to nearly 29,500 professional investigators, law enforcement agencies, law firms, insurance companies, journalists, businessman's and private persons from around the world (over 190 police agencies worldwide using the X13-VSA PRO Cobra technology). The use of the technology continues to grow and to receive high profile attention.

Since 2008 the X13-VSA PRO Cobra technology is used also by some international airports to screen travelers.
Our technology is the most advanced Voice Stress Analysis system that has yet been produced to detect changes in human speech and the cheapest system in the world.

The X13 technology is far superior to outdated systems such as TRUSTER, CVSA, LANTERN and "Pocket Lie Detectors". Our VSA IS THE TRUE SOLE SOURCE FOR VOICE STRESS ANALYSIS SOFTWARE.

How accurate is the VSA system?

If the voice quality is good and the system is used correctly,
you can achieve almost 98,9 percent accuracy. Getting these results may take a little bit of practice. You can increase your accuracy by repeating certain questions and analyzing recorded conversations. Enjoy the newest technology!

X13 tell you if someone is telling the truth

Does your partner really love you? Our Voice Stress Analysis Lie Detector Software can help you to discover if somebody is cheating on you, being unfaithful, or having an affair. What would you pay to know what the other person is thinking?

System requirements:

All Microsoft Windows® platforms (Windows 9x/ME/2000/NT/XP/Vista/Windows 7/8/10). Sound card and compatible microphone.
There is no need to dedicated a computer for this application, this will save you thousands of dollars.

The X13 technology is the most accurate VSA technology and the most technically
advanced digital Voice Stress Analysis system on the market.

No one can lie to you any more because with X13-VSA you know what your friends and clients think about you...

X13 focuses on what you want: to find out the TRUTH!

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Our VSA is the most advanced and cheapest computerized voice stress analyzer in the world

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