Description of how M2 Voice Analysis works:
 
M2 Voice Analysis is the newest, most sophisticated technology to support moderating and analysis
It is based upon LVA – Layered Voice Analysis.

Here is a comparison of M2 Voice Analysis with known alternatives:

 


 

VSA/CVSA
 

Polygraph
Modality:
Voice frequencies
Voice frequencies
Respirator and/or galvanic skin response measures
Analytical Method:
             Layered Voice Analysis
“Micro-tremors” in vocal frequency
Measured physiological changes
Intrusiveness:
Non-intrusive
Non-intrusive
 
Highly intrusive
Inputs:
Open ended questions of any nature
Open-ended questions of any nature
Yes/No questions
 
Measurements are based upon:
120 emotional parameters
10,000 algorithms measuring emotional reactions, cognitive processes, stress
1 emotional parameter
1 algorithm measuring extent of emotional stress in voice
Physiology
Outputs:
Multichotomous
(Deceit/Truth, plus several intermediate measures
Dichotomous
(Acceptable/Unacceptable range)
Dichotomous
(Acceptable/Unacceptable range)
 
Fit with qualitative research:
Robust
Weak
None
Accuracy:
Truth-Deceit: ~90%
Emotional state: ~95%
Limited data
 
Timing:
Live or recorded
Live or recorded
 
Languages:
Any
Any
 
Consideration:
We need to record this interview & your voice for analysis purposes
“We need to record this interview & your voice for analysis purposes
 

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