- Computer Voice Stress Analysis Software Youtube
- Computer Voice Stress Analysis Software Examples
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Voice stress analysis (VSA) and computer voice stress analysis (CVSA) are collectively a pseudoscientific technology that aims to infer deception from stress measured in the voice. The CVSA records the human voice using a microphone, and the technology is based on the tenet that the non-verbal, low-frequency content of the voice conveys information about the physiological and psychological state of the speaker. Typically utilized in investigative settings, the technology aims to differentiate between stressed and non-stressed outputs in response to stimuli (e.g., questions posed), with high stress seen as an indication of deception.[1]
The use of voice stress analysis (VSA) for the detection of deception is controversial. Discussions about the application of VSA have focused on whether this technology can indeed reliably detect stress, and, if so, whether deception can be inferred from this stress.[2] Critics have argued that—even if stress could reliably be measured from the voice—this would be highly similar to measuring stress with the polygraph, for example, and that all critiques centered on polygraph testing apply to VSA as well.[3] A 2002 review of the state of the art conducted for the United States Department of Justice found several technical challenges to the technology, including the same problem of determining deception.[4] When reviewing the literature on the effectiveness of VSA in 2003, the National Research Council concluded, 'Overall, this research and the few controlled tests conducted over the past decade offer little or no scientific basis for the use of the computer voice stress analyzer or similar voice measurement instruments'.[1]:168 A 2013 paper published in Proceedings of Meetings on Acoustics reviewed the 'scientific implausibility' of its principles and 'ungrounded claims of the aggressive propaganda from sellers of voice stress analysis gadgets'.[5]
Confession made following a voice stress examination was allowed to be used as evidence in a case in Wisconsin in 2014.[6] In the case of the murder of 12-year-old Stephanie Crowe confessions were made while three suspects were undergoing VSA which were later found to be false by a judge; the manufacturer of the VSA equipment later settled a lawsuit that alleged that it was liable for the harm the three suspects suffered.[7] In a similar case, Donovan Allen falsely confessed to killing his mother after failing a VSA test. He was acquitted 15 years later based on exonerating DNA evidence.[8]George Zimmerman was given a VSA after he fatally shot Florida teenager Trayvon Martin in 2012.[9]
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See also[edit]
The computer voice stress analyzer notes the frequency changes in the subject’s voice and “identifies” the vocal stress related to the specific facts under investigation. The computer processes the voice frequencies and displays a graph “picture” of them. Whether you are new to voice stress technology or a seasoned VSA professional, we are pleased to provide you with the latest, easiest to use and most comprehensive voice stress analysis software available today, bar none. X13-VSA is a Voice Stress Analysis Lie Detector Software. The most advanced voice analysis technology available today. X13-VSA is an innovative, advanced and sophisticated software system and a fully computerized voice stress analyzer that allows you to detect the truth instantly.
References[edit]
- ^ abNational Research Council (2003). The Polygraph and Lie Detection. National Academies Press. ISBN9780309263924.
- ^Eriksson, A. & Lacerda, F. (2007). Charlatanry in forensic speech science: A problem to be taken seriously. International Journal of Speech, Language and the Law, 14(2), 169–193. doi:10.1558/ijsll.2007.14.2.169
- ^Lykken, David T. (1998). A tremor in the blood : uses and abuses of the lie detector. New York: Plenum Trade. pp. 196ff. ISBN978-0306457821.
- ^Haddad, Darren; Walter, Sharon; Ratley, Roy; Smith, Megan (March 20, 2002), Investigation and Evaluation of Voice Stress Analysis Technology(PDF), United States Department of Justice, Document No. 193832, Award Number: 98-LB-VX-A013,
[A] variety of factors could influence the presence or absence of the [voice pitch] microtremors, which are claimed to exist in our muscle control during speech production. It is clearly unlikely that a single measure such as that based on the computerized voice stress analyzer could be universally successful in assessing stress..it is not possible to cleanly separate the excitation signal into components due to emotion and those due to deception..a suspect under questioning would also display natural stress even if he were not guilty.
- ^Lacerda, Francisco (May 2013), 'Voice stress analyses: Science and pseudoscience', Proceedings of Meetings on Acoustics, 19 (060003): 060003, doi:10.1121/1.4799435
- ^Zambo, Kristen (June 19, 2014). 'Statements in rape case allowed in, made 17 hours after voice stress test, judge rules'. Journal Times (Racine, WI).
- ^Marshall, Scott (May 25, 2005). 'Maker of voice-analysis machine settles Crowe lawsuit'. The San Diego Union Tribune.
- ^Kronebusch, Lauren. 'Critic says Longview police got a false confession out of Donovan Allen'.
- ^Kovaleski, Serge F. (16 May 2012). 'Trayvon Martin Case Shadowed by Police Missteps'. The New York Times.
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Voice_stress_analysis&oldid=907326947'
Computer Voice Stress Analysis Software Youtube
December 09, 2018
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To beat a voice stress analysis test, remove the stress from your voice by trying breathing exercises, drinking more water, sucking honey lozenges and remembering what your mother said when she scolded you for having a smart mouth as a child: It's not what you said, it's how you said it.
December 09, 2018
Lie-detector, or polygraph, tests have come a long way since a police officer developed the first machine in 1921. Instead of strapping a suspect to a pulse-measuring machine to determine whether he’s lying, today’s voice stress analysis software can detect subtle changes, or microtremors, in a person’s voice without him even knowing his voice is being analyzed. Neither test is admissible in court, but failing a voice stress analysis can prevent you from getting a job in law enforcement or government. It may even affect your ability to file an insurance claim because many adjusters use computer voice stress analyzers (CVSA) to help prevent fraud. Consequently, the internet is brimming with tips on how to pass a voice stress test, but some suggestions are wiser than taking drugs to relax.
TL;DR (Too Long; Didn't Read)
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To beat a voice stress analysis test, pay attention to how you sound in the days leading up to it. Refrain from straining your vocal cords and try breathing exercises to calm down.
Beat a Voice Stress Analysis Two Smart Ways
Controlling how you speak without sounding like Siri will take some practice, so enlist your smartphone for help. Download the BioBeats’ Biobase app, a guided stress-management course that helps you to track, measure and manage stress. Like those hydration apps that remind users to drink a glass of water, it will prompt you to engage in a breathing exercise, monitor your heart rate and store the information like a Fitbit so you can track your progress. BioBeats follows the Papworth breathing technique which hospitals use to reduce patient stress. The idea is that slow, deep breaths stimulate the release of a feel-good hormone called oxytocin. Studies have shown this hormone reduces blood pressure, decreases the so-called stress hormone cortisol and promotes positive social interaction, which can help during a job interview.
To further remove stress from your voice, the University of Iowa’s Voice Academy website suggests sighing while yawning. This is a type of voice therapy that lowers the larynx, increases airspace between vocal cords and opens the throat for relaxed speaking.
Change Your Voice, Change Your Outcome
Remember, changing your voice will change how people see you. If you know you’ll have to pass a voice stress test to ace a job interview, try these as soon as you can beforehand:
- drink a lot of water
- sleep with a humidifier
- turn off the air conditioning
- avoid cigarette smoke and chemicals, like cleaning supplies
- suck on honey lozenges
- refrain from clearing your throat or coughing
- stop yelling, singing out of your range and talking in noisy environments that force you to speak louder
Computer Voice Stress Analysis Software Examples
One Last Note About Passing Voice Stress Analysis Tests
Computer Voice Stress Analysis Software Download
Ultimately, the key to beating a voice stress test may lie in something your mother said when she scolded you for having a smart mouth as a child: It’s not what you said, it’s how you said it. Free windows 98 games for kids.