Voice Stress Analysis
with AVSA PRO
The Modern method for
Detection of Deception
Research Results
Extracts from a report of the Air Force Research Laboratory - Rome
For the complete report, follow this link:
http://en.wikipedia.org/wiki/Voice_stress_analysis
Extracts from a report of the Air Force Research Laboratory - Rome
For the complete report, follow this link:
http://en.wikipedia.org/wiki/Voice_stress_analysis
Criticism
Voice Stress Analysis (VSA) used to be a controversial lie detection technology. It was described as pseudoscientific, although there is a wealth of scientific basis for the underlying theory of "microtremors".[4] Federally funded research via the American Polygraph Association in the United States showed "little validity" in the technique.[5]
Air Force Research Laboratory[6] conducted validation studies into VSA concluded that mainstream VSA[7] were as reliable as polygraph when used by expertly trained examiner-operators.
Air Force Research Laboratory[6] conducted validation studies into VSA concluded that mainstream VSA[7] were as reliable as polygraph when used by expertly trained examiner-operators.
Accuracy
Funded by the National Institute of Justice, a three-year study by the AFRL determined that voice stress analysis achieved an accuracy rate of 100% when used to detect stress in 45 known-conclusion responses. The discrepancy in researched accuracy may result from incorrectly trained or non-trained persons utilizing the technology incorrectly.] The traditional analysis and scoring of voice-grams by means of assigning 'percentages' is time consuming, (and) has been replaced by 7 position scoring and lately by AVSA PRO auto scoring. Alpes-Software developed AVSA PRO, which is a unique, evolutionary, fully automatic VSA system.
If it is not AVSA PRO it is Obsolete!
