Layered Voice Analysis Truth Verification Software.

1. Xact Analysis
Truth Verification Specialists
Layered Voice Analysis 6.50
The LVA™ (Layered Voice Analysis) Technology
Truth verification services are provided by doing voice analysis
through computer technology. It provides easy access to truth
verification. Whole conversations are analysed and not just yes/
no answers. The analysis process can be done in real-time but
conversations are also recorded to enable off-line detailed
analysis and reporting. The final report provides comprehensive
data and robust quantitative results that can be used together
with other information obtained by the client.
A subject’s speech is used as input to identify different voice
properties. Psychophysiology, the scientific discipline devoted
to the study of the interrelationships between the physiological
and psychological aspects of behaviour, provides the code that
detects various levels of stress, cognitive processes and emo-
tional reactions in voice properties.
LVA differentiates between deception and other types of stress such as excitement, confusion, emotional stress, cognitive stress or cir-
cumstantial stress.
LVA analyses the entire vocal spectrum, including high, medium and low frequencies. Individual differences in speech characteristics
can be identified and used to formulate an opinion regarding the subject’s credibility.
LVA also detects levels of tension, rejection, fear, embarrassment and attempts to outsmart or answer cynically or even the subject’s
level of thinking. LVA also measures the willingness of the subject to answer using the Say or Stop (S.O.S) parameter. The use of de-
ception patterns also increases the accuracy with which deception is detected.
LVA is NOT Voice Stress Analysis (VSA) or Computerised Voice Stress Analysis (CVSA) and is not based on any micro tremor analysis
at all. It was specifically designed to overcome all problems encountered with the micro tremor technologies.
LVA as an investigation focus tool
LVA enables a better understanding of a subject’s mental state and emotional makeup at a given moment by detecting the emotional
content of their speech when responding to questions. This means better insight into the way they think, what is troubling them, what
excites them, their uncertainties and sensitive issues. This is used to focus an investigation and identify areas that require more informa-
tion gathering.
Furthermore, the technology enables the user to explore several levels of conscious and unconscious brain activities, thus, exposing
additional layers of information that would otherwise be unavailable. This information can save crucial time during an investigation.
LVA and lie detection
Professionals in the field of lie detection know that there is no “true” lie detector, as lying is not a unified set of feelings that can be meas-
ured. Lying is a result of a deep logical process that is executed with a particular intention. One might lie to protect oneself from harm,
while another might lie to gain profit, or even just to make a joke. Due to this variety in motivation and intention, there is no fixed set of
characteristics (physiological or psychological) that differentiate lies from truth. However, LVA is capable of detecting the intention be-
hind the lie, and by doing so can lead you to identifying and revealing the lie itself.
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