Integrity & Lie Detection Testing | Voice Stress Analysis - SSC Legacy
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The use of Voice Stress Analysis (VSA) for the detection of deception has become the preferred method to reliably detect stress.
The VSA is a technology that aims to measure deception from stress measured in the flexibility of a subject’s vocal chords. When the subject is put under stress, they will enter into a response to perceived threats. This causes the muscles in their throat to tighten, which has an effect on their vocal chords.
Used as an investigative tool, the technology differentiates the stressed and non-stressed outputs. The VSA is a much friendlier test in terms of how it interacts with the subject. It is important to remember that an employee cannot be dismissed purely as a result of a VSA Test. The results of these tests can only be used as supporting evidence when a case is presented at the CCMA.
Why use Voice Stress Analysis?
Why use VSA?
- No discomfort from attachments to the bodies
- Reactions are instantaneous, so the normal questioning speed can be used
- The subject is not limited to yes or no answers
- Voices are complex instruments that express a multifaceted range of emotional and cognitive states of mind
- Voices can be gathered and analysed over the phone, through recordings or face-to-face interviews
- Our investigators use highly advanced software in the analysis of the flow of speech and can distinguish between nonverbal emotional, cognitive and stressful elements within the voice to achieve a high level of testing accuracy
- Our technology enables our investigator to pinpoint the cause of stress and know whether it is caused by a lie, excitement, an exaggeration or cognitive conflict
Voice Stress Analysis effective when dealing with
- Detection of deception, theft or fraud
- Analysis of recorded interviews
- Pre-employment and periodic screening
- Specific incident testing
- Infidelity
- Security clearances
- Employee/company vetting
To find out more about our Integrity & Lie Detection Testing / Voice Stress Analysis services, contact Siphiwe on Siphiwe@sscinfo.co.za +27 81 780 1172.