Talk:Voice stress analysis

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[edit] Factual accuracy

This seems like complete bunk to me (just like the polygraph). Does anyone have any references to any academic studies? —Preceding unsigned comment added by 220.233.50.147 (talk • contribs)

I agree that it's a garbage technique, but that doesn't mean that an article shouldn't be here — notability, not factual accuracy, is the determinant (hence articles like Phrenology). However, if you do have some referenced academic criticism to add, by all means, please do — it would improve the article. Tijuana BrassE@ 09:51, 28 May 2006 (UTC)

Added the following:

  • A sentence to introduction indicating that multiple studies have concluded that VSA's accuracy is no better than chance
 Note - then you must actually refer to such studies by way of a link, or traceable data
  • A table of contents
  • A section on accuracy with a link to the American Polygraph Association's VSA research section
 The APA's own research was debunked by NAS in 2003 - APA is not a worldwide authority on 
 all matters DOD - in fact, the APA's 'so called research' on VSA is hearsay. Please dont use 
 independent and competing researcg studies. its like saying pepsi says coca-cola is crap.)
  • Category references to pseudo-science and measuring instruments - 'keep personal opinions out
 please. Unless you publish your full name and academic qualifications, you are NOT qualified 
 to label anything as psuedo or fictional. To do so borders on slander.

VSA appears to be complete bunk, and I think that the article should reflect that more strongly.

 What you 'THINK' is irrelevant. What you know by peer reviewed research that you can refer to
 specifically, is relevant. Otherwise your personal opinions have no place here.

StraussianNeocon 10:16, 28 May 2006 (UTC)

[edit] Skype

Skype users to get lie detectors KishKish VSA (presumably the product in question)

Not sure if this should be added, or what exactly should be said about it. JulesH 17:32, 15 December 2006 (UTC)

Kishkish is a party trick, based on LVA. LVA has no place in the serious world of DOD (Deception Of Detection) John Elder (see bottom page) is also referring to LVA. Ctka 15:58, 17 October 2007 (UTC)Ctka - 16 October 2007

[edit] Amplitude? or Frequency?

I admit that I know nothing about this subject. But, a tremor, as any waveform, has an amplitude and a frequency. Since the article later says that the stress level is measured in Hertz, it sounds like we're talking about the frequency of the tremor, not the amplitude. Am I wrong? Can somebody clarify the text? Appljax123 15:09, 9 January 2007 (UTC)

There is plenty of misinformation on the net about this - not in the sense of falsehoods, but total misunderstanding by people who have written articles. This article needs to be strongly edited - the answer appears to be that the integrated power of the tremor signal is compared with the integrated power spectrum of the entire signal. If the two do not track, it indicates that the vocal cords are stressed, which, proponents claim, indicates a lie. I should dig up enough info to write this up clearly in the main article, but don't have time right now. John Elder 16:46, 18 January 2007 (UTC)

WELL, YOU ARE INCORRECT JOHN. VSA CANNOT BE REDUCED TO AN ELECTRONIC EQUATION. VSA RECORDS THE DIFFERENCE BETWEN UTTERED RESPONSES, COMPARING THE NORMAL VOICEPRINT IN Hz OF THE VARIOUS RESPONSES. UNDER PSYCHOLOGICAL STRESS, THE VOICE RESONATES AT LOWER Hz THAN WHEN UNSTRESSED. —Preceding unsigned comment added by Ctka (talk • contribs) 15:52, 17 October 2007 (UTC)

McQuiston-Ford based VSA (not LVA) measures the Lippold Tremor in Frequency.
If you require a detailed and tech explanation - drop me a line via Wiki channels.

Is there anything besides lying that might cause the lower frequency? David —Preceding unsigned comment added by 81.132.1.151 (talk) 23:59, 29 January 2008 (UTC)

[edit] Use to prevent fraud

This is being used to prevent welfare benefits fraud in the UK. [1] Secretlondon 03:53, 12 September 2007 (UTC)

[edit] Article in need of MAJOR work!

I have heavily tagged this article as being in need of improvement. Hopefully, this will attract some thorough editorial attention. At the very least, it needs non-commercial references, with citations for statements. Halwahalf 07:59, 21 October 2007 (UTC)

I agree. I changed some and added some more. I have done little to the actual article other than remove the uncited conspiracy passages and the meaningless citation that went along with it. Many references reference nonexistent web sites as well. This article is in a very pitiful state; indeed it is one of the worst I have ever come across on wikipedia. Before anyone argues with me on my edits, please read WP:V, WP:FRINGE, WP:CITE, and WP:OR.

208.81.93.114 (talk) 06:21, 24 March 2008 (UTC)