Download or read book Influence of Selected Vibrations Upon Speech range of 2CPS 20CPS and Random written by Aerospace Medical Research Laboratories (U.S.). Biophysics Laboratory and published by . This book was released on 1963 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Selected Vibrations Upon Speech range of 2CPS 20CPS and Random written by Aerospace Medical Research Laboratories (U.S.). Biophysics Laboratory and published by . This book was released on 1963 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Certain characteristics of speech production are altered during low-frequency vibration (2-20 cps) of the talker. In view of this, speech communication is not at all assured during the vibration and buffeting associated with powered flight, launch, and reentry of manned space flights of the present and the future. Vibrations having the most adverse effects upon man are low-frequency sinusoidal, and random in nature. Standard speech material read by talkers exposed to low-frequency sinusoidal and random vibration conditions was recorded. This material was evaluated both objectively and subjectively in terms of intelligibility, duration, and quality of speech. In experiment I, seated talkers were subjected to vertical, low-frequency sinusoidal vibration. Frequencies of vibration most detrimental to speech production were 6 cps, 8 cps, and 10 cps when speech material was presented in combination with a masking noise. In experiment II, the sitting talkers were exposed to random vibration that simulated the type of conditions experienced in actual space missions and during high-speed, low-altitude flight. No significant differences in speech production were found due to random vibration (0.5 to 8 cps).
Download or read book Influence of Selected Vibrations Upon Speech range of 2 CPS 20 CPS and Random written by Charles W. Nixon and published by . This book was released on 1963 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Certain characteristics of speech production are altered during low-frequency vibration (2-20 cps) of the talker. In view of this, speech com munication is not at all assured during the vi bration and buffeting associated with powered flight, launch, and reentry of manned space flights of the present and the future. Vi brations having the most adverse effects upon man are low-frequency sinusoidal, and random in nature. Standard speech material read by talkers exposed to low-frequency sinusoidal and random vibration conditions was recorded. This material was evaluated both objectivea and subjectively in terms of intelligibility, duration, and quality of speech. In experiment I, seated talkers were subjected to vertical, low-frequency sinusoidal vibration. Frequencies of vibration most detrimental to speech production were 6 cps, 8 cps, and 10 cps when speech material was pre sented in combination with a masking noise. In experiment II, the sitting talkers were exposed to random vibration that simulated the type of conditions experienced in actual space missions and during high-speed, low-altitude flight. No significant differences in speech production were found due to random vibration (0.5 to 8 cps). (Author).
Download or read book Bioastronautics Data Book written by James Fletcher Parker and published by . This book was released on 1973 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerospace Medicine and Biology written by and published by . This book was released on 1965 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerospace Medicine written by Hugh W. Randel and published by . This book was released on 1971 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1964 with total page 1388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Human Vibration written by M. J. Griffin and published by Academic Press. This book was released on 2012-12-02 with total page 1005 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today the human body is exposed to vibration not only while traveling but also during leisure and domestic activities and in many occupations. This volume summarizes the current understanding of the many human responses to vibration. Divided into two parts, this book deals with whole-body vibrations and hand-transmitted vibration. In each part the experimental data and appropriate models are presented in detail so that readers can address practical problems. An extensive guide to national and international standards is provided, and a large multidisciplinary glossary of terms assists in understanding the relevant technical and medical jargon. This comprehensive reference volume is accessible to all those interested in human vibration: medical doctors, engineers, lawyers, scientists, and health and safety officials and administrators. LK uses the following bulleted list_ This new text features: An up-to-date statement of current knowledge on human responses to vibration A comprehensive glossary of terms in current use in the fields of vibration and human response An extensive bibliography and guide to national and international standards
Download or read book Aerospace Medicine written by and published by . This book was released on 1974 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Reference Publication written by and published by . This book was released on 1979 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physiological Basis for Spacecraft Environmental Limits written by J. M. Waligora and published by . This book was released on 1979 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeromedical Aspects of Vibration and Noise written by J. C. Guignard and published by . This book was released on 1972 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibration and noise are treated separately in Parts One and Two of this volume; while Part Three deals with the special aeromedical problem of auditory perception in aircrew and ground support personnel and its conservation. Part Four is a glossary of relevant terms. This division of the subject matter recognises that in practice vibration and noise are conveniently studied, measured and controlled as separate entities. It should, however, be borne in mind that these conditions rarely affect man singly. They are commonly present at the same time; and vibration and noise may often be associated with different kinds of environmental agent, such as heat, to make up a combined environmental stress. The human response to such combinations of stressful agents is still a largely neglected field of research.
Download or read book Handbook of Human Factors and Ergonomics written by Gavriel Salvendy and published by Wiley-Interscience. This book was released on 1997-05-12 with total page 2172 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In orchestrating this book, Dr. Salvendy invited contributions from more than 100 of the foremost authorities around the world. Each of its 60 chapters was reviewed by an international advisory panel comprised of some of today's leading figures in human factors and ergonomics. While each chapter establishes the theoretical and empirical foundations of the subject under discussion, the book's approach is primarily applications-oriented. Hence throughout readers will find case studies, examples, figures, and tables that optimize the usability of the material presented." "It is an indispensable tool for human factors and ergonomics specialists, safety and industrial hygiene professionals and engineers, human resource professionals and managers in manufacturing and service industries, and for educational institutions and government."--BOOK JACKET.
Download or read book AMRL TR written by and published by . This book was released on 1963 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA SP written by and published by . This book was released on 1962 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1964 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
