CVSA and other Voice Stress Analysis Applications CVSA and other Voice Stress Analysis Applications
Computer Voice Stress Analysis--another pseudoscientific form of "lie detection"--is used by some law enforcement agencies as an alternative to the polygraph. Other voice stress analysis products like Truster, Truster Pro, Handy Truster, and Layered Voice Analysis have also been promoted. But do they actually detect lies?
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Science, or Blinded By Science ?

For a a DOD technology to claim it is science, the process should be verifiable and produce identical
results time and again. There is simply no way t...

Started May 17th, 2007 at 2:34pm by 1904 (Ex Member)
0 2416 Last Post May 17th, 2007 at 2:34pm
By: 1904 - Ex Member
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Do I have any rights at all?
I was given two cvsa tests today.Before the first one the tester stated to me that my accuser had passed there test. After the first test the tester said he had made a mistake and,deleted the results ...

Started Mar 10th, 2007 at 2:39am by Batman74
2 2859 Last Post Mar 10th, 2007 at 5:36pm
By: Batman74
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Incorrect Results of test by police-what now?
Could someone please explain this to me?  My husband took a stress test and it showed stress where he was not at all lying.  After looking up some info, I found this...

Subject to rest...

Started Dec 18th, 2006 at 4:38pm by woodeyelie
1 2915 Last Post Dec 18th, 2006 at 8:42pm
By: Administrator
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False positives lower with the CVSA? anyone fail?
I have seen a couple things on here how alot of people are dropping the test because it cannot detect lies???
I'm just wondering if CVSA are better than the poly for pre-employent screening.<br /...

Started Nov 6th, 2006 at 5:52pm by winchester
1 3359 Last Post Nov 7th, 2006 at 4:50am
By: George W. Maschke
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CVSA Evaluation at a National Conference
I'll be attending the American Society of Criminology Conference in LA this week and came across this session:
Evaluating Voice Stress Analysis Software for Deception Detection 


I'm dismayed that this pseudoscience made it into my professional association's national conference and tha

Started Oct 30th, 2006 at 7:07pm by digithead
0 2109 Last Post Oct 30th, 2006 at 10:07pm
By: digithead
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VSA for Skype
New VSA implementation by
Now KishKish SAM offers you a tool to detect the lies you hear on your Skype phone. With the use of KishKish SAM VSA you can monitor whole conversation and ...

Started Aug 2nd, 2006 at 7:31am by kishkish
2 3158 Last Post Aug 12th, 2006 at 2:30am
By: Darius
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Anti CVSA Article At
I found an interesting article on condeming the use of the CVSA.
Here it is:

Started Jul 14th, 2006 at 9:45pm by OfficerWannabe
0 2453 Last Post Jul 15th, 2006 at 12:45am
By: OfficerWannabe
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Forensic R&D Center for Polygraphy, CVSA, LVA,
International Forensic R&D Center
for Polygraphy, CVSA, LVA, EEG-based BrainFingerprinting, Remote Personnel Assessment
I would like to establish the above entity as an independent...

Started Jun 21st, 2006 at 8:56pm by Darius
0 1836 Last Post Jun 21st, 2006 at 11:56pm
By: Darius
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How to record CVSA example patterns ?
I would welcome your advice on how to record some voice example patterns for home-made Computer Voice Stress Analysis.
There are a number of voice example patterns on the net like those ...

Started Jun 19th, 2006 at 9:28pm by Darius
0 1878 Last Post Jun 20th, 2006 at 12:28am
By: Darius
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Brain fingerprinting...???
This topic has been moved to Polygraph Policy by Administrator.

Started Jun 7th, 2006 at 7:21pm by Irishgeek
0 1869 Last Post Jun 7th, 2006 at 10:21pm
By: Irishgeek
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Hi,  in a few days i will take a cvsa for a police dispatcer job.  I am an honest person and really look forward to the opportunity.  I have some concerns,  i have used some drugs in the past (nothing...

Started Apr 17th, 2006 at 3:03pm by ALIENEYED
3 4657 Last Post Jun 1st, 2006 at 9:50am
By: George W. Maschke
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Polygraph Place's Spotlight Examiner
I found this to be quite interesting given the polygraph community's disdain for CVSA, not to mention the disdain for CVSA shown by the polygrapher posters at  Click on the link an...

Started May 25th, 2006 at 3:51pm by day2day
0 1722 Last Post May 25th, 2006 at 6:51pm
By: day2day
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use in non crminal invetigations.
Can anyone tell my why insurance invetigators are using this tactic. With all that i have been reading there seems to be a fairly high number of false positives. What is they use this tactic on someon...

Started Mar 31st, 2006 at 11:46am by guynolie
1 2438 Last Post Apr 1st, 2006 at 4:48pm
By: Sergeant1107
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Innocent Until Proved Guilty? (CVSA Exposé)
ABC News. chief investigative correspondent Brian Ross shines the spotlight on Charles Humble and CVSA in an article titled "Innocent Until Proved Guilty?":

Started Mar 30th, 2006 at 7:57pm by George W. Maschke
4 8135 Last Post Apr 1st, 2006 at 3:31am
By: pinned
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Nothing But the Truth (DoD Scraps CVSA)
According to an article by David Holman published in The American Spectator last December, the Department of Defense has ended its reliance on CVSA. Holman suggests that this may have been a mistake, ...

Started Mar 7th, 2006 at 10:20am by George W. Maschke
1 10352 Last Post Mar 27th, 2006 at 5:23pm
By: George W. Maschke
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Administrative Inquiry
What does that exactly mean? Administrative Inquiry, and can all the info they gather be used against you when you go to court even though they never read me my rights?

Started Mar 18th, 2006 at 7:47pm by bobbyg
3 6113 Last Post Mar 20th, 2006 at 4:50pm
By: retcopper
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Re: What to do??? Voice Stress Ana.
I find posts such as this one rather troubling.  While I believe the use of the polygraph is problematic for a number of reasons, especially for hiring and screening in law enforcement and intelligenc...

Started Mar 18th, 2006 at 9:12am by polyrized
4 5725 Last Post Mar 19th, 2006 at 6:00pm
By: Dippityshurff - Ex Member
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Will anyone here take a quick look at the results from an CVSA test taken by a close friend?
The testing agency has given no explaination of the results.
i have the 6 questions and whish som...

Started Mar 15th, 2006 at 1:58pm by outinvegas
2 3032 Last Post Mar 16th, 2006 at 5:41pm
By: Wheelman
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can child molestor pass cvsa
My ex wifes new husband attemted to get my 6 year old  daughter to "kiss his pee pee" 3 times while staying at their home. Thankfully she didnt and told someone. Child protection services stepped in a...

Started Mar 14th, 2006 at 10:11am by topmillwright
7 6473 Last Post Mar 16th, 2006 at 5:31am
By: Sergeant1107
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Finding Truth in a Vendor's Pitch (LVA)
Finding Truth in a Vendor’s Pitch
By Lew McCreary
There might be no more pitiable predicament in life than being pitched a product that...

Started Feb 28th, 2006 at 2:53pm by George W. Maschke
0 3273 Last Post Feb 28th, 2006 at 5:53pm
By: George W. Maschke
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CVSA and other Voice Stress Analysis Applications

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