CVSA software analyzes micro-tremors in the subject’s voice, which are believed to indicate stress, potentially associated with deception or heightened emotional states.
CVSA software produces waveforms or graphs that illustrate changes in the voice's micro-tremors. Operators use these visuals to identify stress-related patterns.
Stress indicated by the software may stem from nervousness, fear, or other emotional states unrelated to lying, requiring careful interpretation by a trained operator.
CVSA results are more reliable when combined with corroborating evidence or additional investigative findings, helping to reduce reliance on software interpretation alone.
A common misconception is that CVSA directly detects lies. In reality, it identifies stress patterns that may or may not correlate with deception, and accuracy depends on operator interpretation and additional evidence.
