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Topic: Voice analysis

In the News (Tue 2 Dec 08)

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	Voice Analysis - The Truth about the Truth Machine - Nemesysco Ltd - Studies & Articles
		Voice analysis deals with detecting the emotional changes occurring with the intention to deceive, and not with the "Logical" action of lying.
		As Voice Analysis technology was designed to be much more flexible than the basic polygraph, the voice analysis requires a high level of skill and a total understanding of the science of Voice Analysis technology.
		Using "Nemesysco's" L.V.A Voice Analysis technology, we were first to report that the President was telling the truth according to the law and therefore is not lying, but he did participate in a certain type of sexual liason which he felt very bad about.
	www.nemesysco.com /article-voiceanalysis.html (1234 words)

	Voice analysis and coaching for business communication
		The voice encodes the speaker’s personality, yet precisely measuring and analysing the way an individual uses his voice is a difficult task and has in the past been entirely subjective.
		A doctor’s voice speaking to a patient must be different from a salesperson’s voice speaking to a customer.
		The analysis is done by an expert in vocal signal analysis who has been involved in university research for the past 20 years.
	www.grantcomms.co.uk /voice-analysis.htm (854 words)

	LVA - Layered Voice Analysis - Nemesysco's Technologies<
		This information provides insights into the way he or she thinks, what troubles him, what excites him, what portions of his speech he is uncertain about, what questions require more of his attention, and what areas appear to be sensitive issues for the speaker.
		Layered Voice Analysis is not a "Voice Stress" analysis technology, nor does it use any previously known method for detecting voice stress.
		By utilizing a wide range spectrum analysis to detect minute involuntary changes in the speech waveform itself, LVA can detect anomalies in brain activity and classify them in terms of stress, excitement, deception, and varying emotional states, accordingly.
	www.nemesysco.com /technology-lvavoiceanalysis.html (877 words)

	Voice Analysis
		In the human voice, the sound intensity, the timbre and the audibility are largely due to the number of harmonics in the acoustic spectrum.
		The analysis of the vowel frequency range is quite difficult and the lack of laryngeal vibrations does not allow a reconstruction of the vocal tract and its phonetic representation on the formant chart.
		The presumed paranormal voices have a spectrum of poor quality with a large amount of noise, maybe due to their own characteristics or to the noises of the communication channel.
	aaevp.com /articles/articles_about_evp10.htm (4564 words)

	Voice analysis - Wikipedia, the free encyclopedia
		Voice analysis is the study of speech sounds for purposes other than linguistic content, such as in speech recognition.
		A medical study of the voice can be, for instance, analysis of the voice of patients who have had a polyp removed from his or her vocal cords through an operation.
		Voice problems that require voice analysis most commonly originate from the vocal cords since it is the sound source and is thus most actively subject to tiring.
	en.wikipedia.org /wiki/Voice_analysis (452 words)

	Voice analysis -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-12)
		Voice analysis is the study of ((language) communication by word of mouth) speech sounds for purposes other than linguistic content, such as in (Click link for more info and facts about speech recognition) speech recognition.
		Such studies include mostly medical analysis of the (The sound made by the vibration of vocal folds modified by the resonance of the vocal tract) voice i.e.
		A medical study of the voice can be, for instance, analysis of the voice of patients who have had a (A small vascular growth on the surface of a mucous membrane) polyp removed from his or her (Either of two pairs of folds of mucous membrane projecting into the larynx) vocal cords through an operation.
	www.absoluteastronomy.com /encyclopedia/v/vo/voice_analysis.htm (601 words)

	The National Institute For Truth Verification, Voice Stress Analysis and Lie Detection Experts. Manufacturer of the ... (Site not responding. Last check: 2007-10-12)
		Voice analysis to predict the psychological or physical state of a speaker.
		Professor Chapman’s study confirmed that voice stress analysis was accurate when utilized as a truth verification device and produced a confession rate of 94.8% of the responses where deception was indicated (Available from NITV).
		The authors concluded that “audio stress can be detected with a voice stress analyzer in psychiatric patients during the course of therapy and that the VSA could serve as a useful tool for this purpose” (Available from Library of Congress).
	www.cvsa1.com /studies.php (885 words)

	Kansas Voice Center - Common Voice Disorders
		Symptoms of a voice disorder can range from hoarseness, to limitations in the singing range, to complete loss of voice.
		Several diagnosis may be the cause of vocal fold bowing, although the most common cause is due to age and atrophy of the larynx.
		Voice symptoms can include weakness, breathiness, hoarseness, or a strained voice if a person is using too much effort with speaking.
	www.kansasvoicecenter.com /common_disorders.html (992 words)

	TVSA3 : Voice Stress Analysis Freeware.
		Voice Stress Analysis is a type of lie detector which measures stress in a person's voice.
		Researchers found that frequencies in the human voice in the 8 to 12 Hz range are sensitive to honesty.
		Voice Stress Analysis is the core of THE Final Revolution.
	www.whatreallyhappened.com /RANCHO/POLITICS/VSA/truthvsa.html (4312 words)

	Voice Stress Analysis Lie Detector Software - X13-VSA - The most advanced voice analysis technology available today. ...
		Voice Stress Analysis is a type of lie detector which measures stress in a person's voice.
		Today is Voice-stress analysis, an alternative to the polygraph as a method for lie detection, is already widely used in police and insurance fraud investigations and by other organizations.
		Researchers found that frequencies in the human voice in the 8 to 12 Hz range are sensitive to honesty.
	x13-vsa.atspace.us (1307 words)

	Police increasingly using voice-based lie-detector (Site not responding. Last check: 2007-10-12)
		Research into voice analysis began in the late 1950s when scientists identified a "physiological tremor" — tiny, involuntary oscillations in a muscle produced during times of stress.
		Voice analyzers function on the same "fight-or-flight" principles as the polygraph, a technology little changed since its invention more than 80 years ago.
		Among law enforcement, the voice stress analyzer is "not as popular as the polygraph because it's not as reliable as the polygraph," he said.
	www.usatoday.com /tech/news/2002/02/11/voice-lie-detector.htm (659 words)

	Record: Research casts doubt on voice-stress lie detection technology
		Voice-stress analysis, an alternative to the polygraph as a method for lie detection, is already widely used in police and insurance fraud investigations.
		Various distributors of voice-stress analysis systems suggest that recent advances in the technology, such as layered voice-stress analysis, have elevated voice-stress lie detection to new levels of dependability and effectiveness.
		Some suggest that the dismal performance of voice-stress analysis lie detection in recent federal studies can be attributed to improper test conditions or to tests being conducted using outdated and inferior versions of the technology.
	record.wustl.edu /news/page/normal/669.html (1170 words)

	Method for voice analysis and synthesis using wavelets - Patent 5826232 (Site not responding. Last check: 2007-10-12)
		The voice synthesis of the invention analyzes a voice signal by orthogonal breakdown on a basis of wavelets with compact support, preferably Daubechies wavelets.
		This analysis consists in particular in breaking down the digitized signal on an orthogonal basis of wavelets with compact support, and relies on filters whose pulse response may or may not be symmetric.
		This voice synthesis algorithm reconstitutes the original signal by proceeding by interpolation (35.0 to 35.j for S0 to Sj and 37.0 to 37.j for D0 to Dj), filtering (36.0 to 36.j and 38.0 to 38.j respectively), addition (39.0 to 39.j), multiplication (40.0 to 40.j) and low-frequency amplification.
	www.freepatentsonline.com /5826232.html (3795 words)

	//surveillance// Voice Stress Analysis
		Research into voice analysis began in the late 1950s when scientists identified a "physiological tremor" - tiny, involuntary oscillations in a muscle produced during times of stress.
		Voice analysers function on the same "fight-or-flight" principles as the polygraph, a technology little changed since its invention more than 80 years ago.
		Among law enforcement, the voice stress analyser is "not as popular as the polygraph because it's not as reliable as the polygraph," he said.
	lists.brunny.com /pipermail/surveillance/2002-February/000023.html (1361 words)

	A Voice Test To Find What Ails You
		Thompson is an American naturopath who developed Voice Bio-Analysis technology five years ago as a diagnostic tool that breaks down a person's voice into a set of frequencies which correlate to his or her physical and emotional make-up.
		Thompson, who tells of one client in the US whom she advised to see a cardiologist because his voice analysis showed that he was on the verge of a heart attack.
		Thompson, who takes the basic principles of voice analysis from the teachings of Harold Burr, a Yale professor in the 1920s to 1950s who discovered that living things are controlled by electro-dynamic fields which essentially formed a blueprint of life.
	www.leaflady.org /a_voice_test.htm (1165 words)

	Computerized Voice Analysis
		This allows patients to actually 'see' their voices on a computer screen and often, for the first time are able to begin to modify how to use appropriate voicing.
		Computerized analysis can also assess breathiness of voice, which relates to how well vocal cords are coming together, and calculates the percentage of voiced versus unvoiced sounds in a sample of speech.
		The patient then varies his or her voice while looking at a computer screen until the voice and pitch reach an acceptable range.
	www.wchi.com /slp/t_cva.html (167 words)

	GL Communications - Complete Voice Quality Testing Solutions
		In addition to sending/recording voice, the VQuad™ also supports automated call control for establishing calls and verifying the call is up prior to sending/recording voice.
		Impairments to voice quality such as poor mobile phone quality, voice compression and decompression algorithms, delay, loss and gain in speech levels, noise, acoustic and landline echo, and other distortions are easily assessed and accurately measured.
		Voice measurements include MOS (Mean Opinion Score), round trip delay (RTD), jitter, clipping, voice levels, etc. The essential elements of this system are Wireless / Wireline / VoIP Nodes to establish calls and send / receive voice files in real-time, and the Regional Command Center (RCC) to control the nodes.
	www.gl.com /completevqtsolutions.html (1632 words)

	What Is Voice Stress Analysis? (Site not responding. Last check: 2007-10-12)
		Voice Stress Analysis (VSA), originally known as Psychological Stress Evaluation (PSE), is a procedure used for detection of deception (lie detection) or truth verification or to determine psychological stress profiles.
		Superimposed on the audible voice frequencies are inaudible frequency modulations (FM) whose strength and pattern relate inversely to the degree of psychological stress in the speaker at the moment of utterance.
		Most of the functional indicators of stress are attributed to the Autonomic Nervous System, physiological tremor as seen in the voice mechanism is controlled by the Central Nervous System; as the ANS gains dominance in a stress situation, the micro-tremors are suppressed, and the FM in the voice utterance is moderated or completely disappears.
	www.bakerdvsa.com /voicestressanalysis.html (817 words)

	Voice Analysis, Carolyn Woods
		One is the retina of the eye, where information coming from high octaves (light) is received, and the other is the voiceprint.
		Your voice expresses itself in a waveform story or diary of events.
		Reverse speech is complementary with forward speech, as both modes occur simultaneously yet are formed in different areas of the brain.
	www.carolynwoods.canadianwebs.com /voice_analysis.htm (266 words)

	Voice Analysis Lab (Site not responding. Last check: 2007-10-12)
		The voice care team use the lab for quantification of the voice signal with respect to pitch, loudness, quality, as well as measurement of the acoustic parameters and breathing dynamics.
		The voice range profile can then be used to monitor improvement following treatment of the singer's ability to control vocal intensity throughout his/her vocal range.
		The variation of the voice signal associated with opening and closing of the vocal folds is related to the perception of hoarseness harshness and breathiness.
	www.pitt.edu /~crosen/voice/analysis.html (248 words)

	voice analysis (Site not responding. Last check: 2007-10-12)
		Major symptoms of voice problems include; hoarseness, vocal fatigue, breathiness, reduced phonational range, aphonia (absence of voice), pitch breaks or inappropriately high pitch, strain/struggle, tremor, pain, and other physical sensations.
		Voice problems can occur as a result of misuse/abuse, nervous system involvement, organic disease, trauma, and aging.
		Acoustic measurements present in individuals with voice problems associated with organic disease, trauma, and the geriatric voice (aging) (Colton and Casper).
	web.nmsu.edu /~lleeper/pages/Voice/simpson/voiceanalysis.html (283 words)

	Research casts doubt on voice-stress lie detection technology
		Feb. 10, 2004 -- Voice-stress analysis, an alternative to the polygraph as a method for lie detection, is already widely used in police and insurance fraud investigations.
		Various distributors of voice-stress analysis systems suggest that recent advances in the technology, such as layered voice-stress analysis, have elevated voice-stress lie detection to new levels of dependability and effectiveness.
		Some suggest that the dismal performance of voice-stress analysis lie detection in recent federal studies can be attributed to improper test conditions or to tests being conducted using outdated and inferior versions of the technology.
	news-info.wustl.edu /news/page/normal/669.html (1189 words)

	Voice Stress Analysis: Technological Advance or A Step Backwards (Site not responding. Last check: 2007-10-12)
		Voice stress analysis is becoming increasingly popular in the private sector these days.
		Their voice is being analyzed over the telephone when they call to make a claim.
		A computer on the Claims Adjuster desk is busy analyzing the stress level in the caller’s voice and makes a determination as to if the caller is being less than candid in his or her statements.
	www.chiefengineer.org /content/content_display.cfm/seqnumber_content/1696.htm (1006 words)

	Performance Analysis of Voice over IP Networks (Site not responding. Last check: 2007-10-12)
		While the idea of a single managed network consisting of data and voice traffic is appealing for many reasons, the need to ensure acceptable voice quality remains a primary concern.
		On one side, it maintains a connection to a traditional voice network, while the other side is configured to communicate to packet based components.
		For example, a voice payload of 20 bytes when prepared for transmission is combined with an Ethernet header of 14 bytes, and IP header of 20 bytes, a UDP header of 8 bytes, and an additional 12 bytes for the RFP protocol.
	www.enterprisenetworksandservers.com /monthly/art.php/700 (1103 words)

	American Polygraph Association
		This document was pivotal in the decision by the Virginia State Legislature to disallow the use of computer voice stress analyzers in criminal investigations.
		Some studies looked at the CVSA device in particular, while others investigated whether voice stress analysis in general could be used to detect stress or deception.
		Voice stress methodology did not show sufficient reliability to warrant its use as a selection procedure for employment.
	www.polygraph.org /voicestress.cfm (807 words)

	Echo Analysis for Voice over IP
		Voice is carried over an air path in the form of acoustic pressure waves that are measured in units of Newtons per square meter or Pascals (Pa).
		An echo canceler is a component of a voice gateway that reduces the level of echos that have leaked from the Rx path (from the gateway out into the tail circuit) into the Tx path (from the tail circuit into the gateway).
		When the voice and data network was first implemented, users experienced substantial echos, so the customer reverted to using the PSTN for calls between the headquarters and the Brussels site.
	www.cisco.com /univercd/cc/td/doc/cisintwk/intsolns/voipsol/ea_isd.htm (10251 words)

	Professional Voice Analysis for any Recorded material - Nemesysco Service Center
		When you can't reach a decision by yourself (using our personal analysis tools), or you wish to have a second opinion, or simply because you want to be sure about a specific case, you can turn to us.
		The analysis report is not necessarily a fl/white analysis, and in most cases the report will include many details to assist you in mining down to the complete underlying truth.
		Long recording analysis is also available, but there is really no need to conduct a VERY long conversation for the analysis process.
	service.nemesysco.com /professionalvoiceanalysis.html (455 words)

	Forensic Science \| Handwriting And Voice Evidence
		Voice analysis is also a helpful way of identifying a criminal.
		Phonetics experts are able tell from a voice what age, race and sex the person is, as well as trace phone calls back to a particular caller.
		The analysis of someone's handwriting is most commonly used to prove that two documents were written by the same person.
	library.thinkquest.org /04oct/00206/nts_handwriting_voice_evidence.htm (823 words)

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