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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CVSA Maker Admits Device Cannot Detect Lies!
The National Institute of Truth Verification, which markets the Computerized Voice Stress Analyzer (CVSA), has admitted in a court filing that their device "is not capable of lie detection." John Tuoh...

Started Nov 7th, 2004 at 12:24pm by George W. Maschke
« Pages 1 2 »
23 51560 Last Post Jun 3rd, 2012 at 5:12am
By: emmanuel4567 (Guest)
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Yet another CVSA question
Good day, all; I took a CVSA exam today, as required, in the hiring process for a local public safety agency. I have *always* seen the "lie detector machines" as a complete load of crap...and as an as...

Started May 15th, 2002 at 2:01am by eisenmann372002
« Pages 1 2 »
25 21650 Last Post Nov 21st, 2002 at 9:10pm
By: jen19
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WTB used, faulty, uncomplete lie detector
I am interested to buy an old lie detector unit, also uncomplete, faulty one and some spare parts.
The same concerns EEG equipment for Brain Fingerprinting tests, used EEG electrodes or ...

Started Jul 8th, 2006 at 9:57pm by Darius
1 4180 Last Post Jul 5th, 2007 at 3:24pm
By: 1904 - Ex Member
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wil stuttering affect CVSA results
1st. I stutter, I was wondering if my stuttering would affect my CVSA results.
2nd. I also have several "vocal tricks" I use to keep from stuttering. Even though my voice may sound normal to the ...

Started Aug 5th, 2002 at 11:42am by gonnabeaCop
7 13510 Last Post Jun 23rd, 2017 at 10:31am
By: Elijah (Guest)
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I am 19 and planning to join the California Highway Patrol. I just wanted to know if anybody knows if their is any WEBSITES in regards to beating the CVSA

Started Jul 14th, 2002 at 2:02am by Daniel Gandarilla (Guest)
3 5264 Last Post Jul 22nd, 2005 at 8:02am
By: mrconnery
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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 3890 Last Post Aug 12th, 2006 at 2:30am
By: Darius
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I have been offered for purchase a VSA1000.† Voice Stress Analyzer.† It is self contained in a stainless steel hard case.† I would like to play with this and see how it actually works, if it in fact d...

Started Dec 2nd, 2012 at 11:27pm by ROBERTBISHOP
1 3372 Last Post May 22nd, 2018 at 2:08pm
By: Clifton (Guest)
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There's a new website dedicated to exposing "The Truth About Voice Stress Technologies." The site provides research abstracts, testimony on voice stress analysis, and a message board.<...

Started Jul 31st, 2001 at 8:17am by George W. Maschke
8 9081 Last Post Apr 7th, 2002 at 10:45pm
By: antant00
Very Hot Topic (More than 25 Replies)
Voice Stress and BOARDERS
Looks like BOARDERS is using Voice Stress Technology out in AZ.  Just think of the time and cost the voice stress would save the government. Itís about time this happened.
USIS signs teaming agr...

Started May 4th, 2011 at 10:12pm by QRF38L3
« Pages 1 2 3 4 »
50 35463 Last Post May 27th, 2011 at 7:26pm
By: Bill_Brown
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Voice Stress Analysis Touted at Public Corruption Investigation Conference
The National Association of Computer Voice Stress Analysts has issued a press release advertising a presentation to be made by William Endler, an instructor for the National Institute for Truth Ver...

Started May 9th, 2013 at 11:42am by George W. Maschke
This topic contains 1 attachment
13 45029 Last Post Sep 14th, 2021 at 4:49pm
By: Michael Myers (Guest)
Hot Topic (More than 15 Replies)
Voice Analysis Technology
This is an article from a Las Vegas business paper regarding a "new" voice analysis technology being developed by Mr. Harry Rosen of LEA Detection Systems. If CVSA scares you, this will scare you more...

Started Jul 11th, 2003 at 4:44am by Fred F.
« Pages 1 2 »
18 13133 Last Post Jul 8th, 2003 at 5:58am
By: suethem
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used cvsa
hello i am looking for a used cvsa to buy for my business if you got one for  sale i am looking.

Started Nov 20th, 2007 at 12:39am by kenny25271
9 12124 Last Post Dec 23rd, 2014 at 3:51pm
By: Dan Mangan
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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 2973 Last Post Apr 1st, 2006 at 4:48pm
By: Sergeant1107
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U.S. Special Operations Command Buys Into Layered Voice Analysis
It seems that despite having been forced to terminate its use of the Computer Voice Stress Analyzer (CVSA), a device that by the manufacturer's own admission "is not capable of lie detection," U.S....

Started Sep 26th, 2007 at 9:36am by George W. Maschke
2 15208 Last Post Sep 28th, 2007 at 2:13pm
By: 1904 - 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 3707 Last Post Mar 16th, 2006 at 5:41pm
By: Wheelman
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Took CVSA today
I took the CVSA a week ago. She asked me the same question about 3 times (different times) and overlapped  a positive question in between. Is this normal for the tests. After I took the test, the exam...

Started Dec 28th, 2001 at 11:51pm by Steve Jameson (Guest)
1 4020 Last Post Jan 2nd, 2002 at 3:00am
By: Bladerunner (Guest)
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The Truth and Voice Stress Analysis
an interesting recommended reading comes from
the Diogenes Company,
World Leader in Voice Stress Analysis Technology

Started Jun 24th, 2006 at 6:57pm by Darius
5 10747 Last Post Oct 29th, 2008 at 7:01am
By: cesium_133
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the idiotic cvsa...
So george and friends I would like some advice, anyones advice is welcome but I mostly like to hear from george... so this stupid idiotic detective wants me to take a cvsa upon his call, and I had no ...

Started Jun 9th, 2009 at 8:00am by killroyxx3
8 11171 Last Post Oct 18th, 2009 at 5:51pm
By: ecordy75
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The CVSA basics
As far as the CVSA goes, can anyone explain the basics of how it works and what countermeasures are effective?  Someone told me that when they give you a control question, you answer the question whil...

Started Jun 29th, 2003 at 7:31am by treetop
1 4122 Last Post Nov 2nd, 2004 at 7:34am
By: compscigeek
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Sting the CVSA?
Does anyone have any information reguarding the CVSA and countermeasures to use against it?  Has anyone read "How to Sting the CVSA?"  Any information about the CVSA would be greatly appreciated.

Started Oct 19th, 2003 at 6:17pm by treetop (Ex Member)
2 4355 Last Post Oct 26th, 2003 at 1:51am
By: treetop - Ex Member
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CVSA and other Voice Stress Analysis Applications

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