Voice Stress Analysis of Debates?

At 04:01 PM 10/5/96 -0400, John Young wrote:
>URL in The Economist, October 5, 1996, p. 46.
>http://www.cmiatl.com/
>         Crisis Management International, Inc.
>CMI provides crisis management services relating to "hot"
>threats of violence, workplace violence prevention, and
>post-incident crisis intervention. In addition, CMI provides
>threat of violence and crisis response training,
>psych-claims management assistance, and SCAN analysis, which
>is a deception detection technique.

This reminds me...   Years ago, somebody developed a technique called "Voice 
Stress Analysis," which was supposed to detect small variations in a 
person's voice in response to stress.  Not exactly a lie-detector, but it 
was supposed to do nearly the same thing.   Does anybody plan to analyze the 
debates for stress?  Is there software to do this?  (Tried to do a 
web-search; didn't see anything.)


Jim Bell
jimbell@pacifier.com

jim bell wrote:
> At 04:01 PM 10/5/96 -0400, John Young wrote:
> >CMI provides crisis management services relating to "hot"
> >threats of violence, workplace violence prevention, and
> >post-incident crisis intervention. In addition, CMI provides
> >threat of violence and crisis response training,
> >psych-claims management assistance, and SCAN analysis, which
> >is a deception detection technique.

> This reminds me...   Years ago, somebody developed a technique called
> "Voice Stress Analysis," which was supposed to detect small variations
> in a person's voice in response to stress. Not exactly a lie-detector,
> but it was supposed to do nearly the same thing.   Does anybody plan
> to analyze the debates for stress?  Is there software to do this?
> (Tried to do a web-search; didn't see anything.)

Pardon me for butting in.  Some remailer says I post too much, and I 
should cut out some. They didn't say which posts I should cut out, tho'.

Anyway, as I understand it, the current technology in voice/stress 
analysis goes way beyond the polygraph at its best (current) level of 
technology.  There was at least one agency that did voice analysis 
during the Simpson debacle, and the results were (as I recall) very 
promising.  Apparently, a person who can beat a polygraph cannot beat a 
voice/stress analysis.

BTW, the rule for these debates (as all presidential discourse) is:
"He's lying."
"How can you tell?"
"His lips are moving."

Dale Thorn <dthorn@gte.net> writes:
> BTW, the rule for these debates (as all presidential discourse) is:
> "He's lying."
> "How can you tell?"
> "His lips are moving."

Q: How can you tell that Timmy May is posting lies, personal attacks, and
   religious war flame bait?

A: He posts them to cypherpunks.

---

Dr.Dimitri Vulis KOTM
Brighton Beach Boardwalk BBS, Forest Hills, N.Y.: +1-718-261-2013, 14.4Kbps

On Sun, 6 Oct 1996, Dr.Dimitri Vulis KOTM wrote:

> Q: How can you tell that Timmy May is posting lies, personal attacks, and
>    religious war flame bait?
> 
> A: He posts them to cypherpunks.

Said Vulis while wearing ten pounds of mascara, four pounds of lipstick, 
a bra filled with miniature mandarin oranges, and not much else.

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C'punks,

On Sat, 5 Oct 1996, jim bell wrote:

> This reminds me...   Years ago, somebody developed a technique called "Voice 
> Stress Analysis," which was supposed to detect small variations in a 
> person's voice in response to stress.  Not exactly a lie-detector, but it 
> was supposed to do nearly the same thing.   Does anybody plan to analyze the 
> debates for stress?  Is there software to do this?  (Tried to do a 
> web-search; didn't see anything.)

The original device was the PSE, the psychological stress 
evaluator.  It was, as still is, sold by a company called
Dektor.  It is located in the DC area (Maryland?) and is run
by a group of ex-spooks.  It's been around for 25 years or so.


 S a n d y

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PSE/VSE etc relys  on a random 8-14 hz fm modulation appearing in the
 the 3rd formant band of the voice... the Dektor PSE retailed for approximately 5k in the early 1970's the hagoth hs-2 was the early 80;s for 2k .. 
I bought 2 VSE units based on a new chip for 89.95 apiece recently...
this was on an article appearing in popular electronics in 1995
no software as of yet and it would be probably a FFT or DFT based algorithm 
running on a sound blaster DSP(hardware DSP only) or as software
 on a fast 150 Mhz + pentium I can give the basic facts known... it is a truth
detector only(not a lie detector), background music shows up a stress...
and scrubbing the modulation shows up as constant stress or "possible decption"
truth is indicated by the modualtion showing up randomly over small increments
of time... the effect is caused by microscopic tremors of the larynx when the 
speaker is relaxed and truthful the larnyx is relaxed and the random modulations
show up,(or the speaker believes what he is saying to be the truth, when lying
or under stress the larybx tightens and the random modulations
disappear indicating stress... it would be  nice to have it in software...
to run on a laptop soundboard and spread to the net as widely as pgp...

   cheers
   a cypherpunk