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Terms and Definitions

Key Concepts and Explanations for Clarity and Understanding

Layered Voice Analysis

Technology with capability to discern “… deceptive intentions in real life scenarios,” Nemesysco (2019).


“Nemesysco’s technology was originally invented in 1997 by Amir Liberman, and is being developed ever since in consultation with experts from different relevant fields (psychology, criminology, phonetics, psychiatry, mathematics and others).


The technology is based on a proprietary set of vocal parameters found through research to correlate with key human emotions, and in various combinations to be able to identify deceptive intentions in “real life” scenarios. These vocal parameters were identified from a bank of audio files taken in different languages and a numerous settings, including police interrogations, call centers and controlled experiments.


Many of the parameters Nemesysco’s technology uses are new to the world of phonetics, and focus on the uncontrolled and yet phonetically unexplained properties of the human voice,” (Nemesysco, 2019).

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