LVA 6.50 is a professional investigation focus tool using Nemesysco’s proprietary Layered Voice Analysis technology. It is capable of detecting and measuring many different psychophysiological reactions that are indicative of changes in the tested party's perception, alerting the trained operator to follow its indication and leads.

Know Your Suspects

LVA 650 Software

Get to know your suspects much faster. Using the combined skills of your professional knowledge and the high sensing capabilities of LVA, the system will lead you to reveal the whole truth much faster than ever before.

 LVA 6.50 Has 2 Modes Of Operation 

  • On-Line Mode

Real-time analysis during investigations Face to Face / Over-The-Phone

The Online mode offers real time analysis indications as the suspect speaks, so you can see the emotional readings on your screen live, and use those in your line of questioning. The Online mode can be used both in frontal investigations using a microphone, as well as over the phone using Nemesysco’s special phone connector.

  • Off-Line Mode

In-depth analysis of pre-recorded material

The second operational mode of the system, the OFFLINE mode, let’s you perform a very in-depth and precise analysis on pre-recorded materials, so you can evaluate the suspects response and identify new leads that may have been ignored or over looked. Both modes of operation offer a very intuitive user interface, combining textual analysis with graphs and playback options to make the results as easy to read as possible.

LVA 6.50 is Friendly & Intuitive

  • Easy to Learn

  • Easy to Operate

  • Interactive Analysis Displays

  • Simple & Textual Analysis

Nemesysco is leading a new era of understanding in the filed of truth exploration, and though it is loosely based on some of the past technologies, Nemesysco offers some unique and novel concepts. And so, while using LVA 6.50 functionalities is very easy, it is the proper understanding of the results in a professional manner and what stands behind them, that makes our 5 days training a unique and enlightening experience for the professional user.

The Tool of Choice for (almost) Any Investigation Need… 

Unlike other systems of its kind, LVA 6.50 analyzes free and natural speech, and in fact prefers to “listen to the thought process” as it gives the LVA more voice data and helps to understand the thinking mood of the suspect - things that cannot be identified from a simple “yes/no” response. This feature makes it suitable also for undercover work analysis, when the analysis is conducted (where applicable by law) without the subject’s knowledge or preparation.

  • Analyzes free speech

  • Most accurate system of its kind

  • Language independent

  • Doesn’t require the subject’s consent* (where applicable by law)

The LVA 6.50 Messages

LVA 6.50 can detected many different emotional reactions, and will display one textual message for each voice segment that identifies the most relevant / critical type of deviation from the baseline.  This way, when the system detects  no deviation, the message will be “Low risk”, meaning, nothing to suspect. Deviations in the excitement, stress or logical reactions will be titled “Excitement” “stress” and “Subject not sure” accordingly, and so on depending on the intensity of the reaction, more extreme messages may appear, such as inaccuracy, voice manipulation, and even High risk, indicating severe reaction and out of homeostasis.

  • Low Risk

  • Excitement

  • Subject not sure

  • Stress and High stress

  • Voice Manipulation

  • Inaccuracy

  • High Tension*

  • High Anticipation*

  • Medium Risk/High false probability*


* Messages available only in Offline mode

LVA 6.50 and the Polygraph, Friends or Foes?

Is LVA 6.50 a substitute for the polygraph? We say no.
The polygraph has been around for over 100 years, and when used properly it is a very effective tool. We have several polygraph experts in our network, and we can say clearly where each of the products can complement the other, all with the aim to get to the truth.

LVA 6.50 completes        

(not competes)        

with the Polygraph        

  • Use LVA earlier in the investigation when you may have a large number of suspects and little time
  • LVA 6.50 is used in the pre-test interview (before the polygraph test), and can hint to prepare a better Polygraph questionnaire
  • LVA 6.50 works over the phone and with recorded material
  • Use LVA when you don't want the suspect to know
  • Better with open conversations than with "yes/no" questions

Use LVA 6.50 

  • Investigation Room

    Direct the investigation into the relevant path, identify new leads and sensitive points, and reveal the truth, well, much faster

  • Sensitive Position Recruitment

    See how a simple discussion with the candidate about his bio and history can reveal new layers of information that would normally not be accessible

  • Intelligence Data Analysis

    Assess the speakers intentions and veracity, get valuable insights about thier concerns and strengths, what causes them discomfort, and what they don’t really like to discuss

  • Undercover Work

    The ability to perform full analysis over the phone offers new possibilities with agents and informants you cannot just call for a test, yet sometimes there may be a pressing need to validate their information. Use LVA 6.50 from the recruitment phase, through training and identity implementation, to operational use and constant evaluation.

Want to learn more? Check out our new LVA 6.50 website

LVA is Made for Real-Life Conditions

LVA is looking for extreme and genuine emotional reactions and will not work on mocked or acted cases. Use LVA 6.50 in the environment it needs to operate, in your real-life environment, during your normal working procedures and not neglecting your own common sense.