However, since the tragic events of September 11, 2001, speech patterns have taken on more important forensic roles. Voice prints are being used to verify the authenticity of terrorists' taped messages, and psychological stress evaluation (fluctuations in laryngeal micro-tremors) of their speech provides information about truthfulness and deception. Voice psychological stress evaluation also can be used to provide information about general levels of anxiety and tension of speakers in airports and other ports of entry. Accent and dialect can be used in speaker profiling as one method of determining whether a suspect is traveling from a hostile country. Finally, speech patterns provide important screening information about intoxication giving law enforcement officers probable cause for detainment and further investigation.
Forensic Aspects of Speech Patterns: Voice Prints, Speaker Profiling, Lie and Intoxication Detection provides lawyers, judges, and law enforcement personnel with basic information when using speech patterns as investigative and litigating tools. The chapters in this book address the basics of human communication, phonetics, anatomy and physiology, speech acoustics, relevant disorders, and the forensic applications.
TOPICS INCLUDE:
An overview of human communication
Speech Analysis explained
Subjective and objective methods of voice identification
Automatic voice identification
Speaker profiling Race, Culture, Ethnicity and Linguistic Behavior Accents and dialects
Linguistic difference based on socioeconomic status
Lie Detection from voice stress analysis
Psychology of the voice
Speech patterns
Intoxication detection
Diseases and disorders affecting the voice
