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Author: Michael Martin (OBE.) Publisher: Singular ISBN: 9781565935167 Category : Audiology Languages : en Pages : 0
Book Description
Notes that in the decade since the first edition, speech audiometry has been almost entirely replaced by electrophysiological tests in many countries for advanced diagnosis, but that many countries do not have such sophisticated equipment or training, and that audiology is still used for rehabilitation. Explains such aspects as the basic properties of speech, speech tests in quiet and noise as a measure of auditory processing, equipment and its calibration, speech tests of hearing for children, and experiences in a number of countries and institutions. Annotation copyrighted by Book News, Inc., Portland, OR.
Author: Michael Martin Publisher: John Wiley & Sons ISBN: Category : Language Arts & Disciplines Languages : en Pages : 388
Book Description
Notes that in the decade since the first edition, speech audiometry has been almost entirely replaced by electrophysiological tests in many countries for advanced diagnosis, but that many countries do not have such sophisticated equipment or training, and that audiology is still used for rehabilitation. Explains such aspects as the basic properties of speech, speech tests in quiet and noise as a measure of auditory processing, equipment and its calibration, speech tests of hearing for children, and experiences in a number of countries and institutions. Annotation copyrighted by Book News, Inc., Portland, OR.
Author: Tanya Crawford Mangum Publisher: ISBN: Category : Audiometry, Speech Languages : en Pages : 58
Book Description
The purpose of this study was to develop digitally recorded speech audiometry materials in the Japanese language to evaluate Speech Reception Threshold (SRT) and speech discrimination. Trisyllabic words were used to evaluate the SRT and bisyllabic words were used for speech discrimination. Words were recorded by one native female talker and one native male talker who were judged as having standard Japanese dialects. Twenty native Japanese speakers between the ages of 20 and 32 were used as subjects to evaluate 69 trisyllabic words across 13 different intensity levels. The 25 trisyllabic words with the steepest psychometric function (%/dB) were selected for inclusion in the final CD. The final trisyllabic words were digitally adjusted so that the threshold of each word was equal to the mean PTA (3.42 dB HL) of all the subjects. The mean psychometric function (%/dB) at 50% for the trisyllabic words was 9.6 %/dB for the male talker and 7.7 %/dB for the female talker. The same 20 subjects were also used to evaluate 240 bisyllabic words across 10 different intensity levels. A logistic regression was used to obtain regression slopes for each of the 240 words. The 200 bisyllabic words with the steepest slope were selected for inclusion in the final CD. Four lists of 50 words each and eight half-lists of 25 words each were created from the selected bisyllabic words. A chi-square statistic revealed no significant differences among the lists or half-lists. The mean psychometric function at 50% for the bisyllabic lists and half-lists was 5.9 %/dB for the male talker and 5.2 %/dB for the female talker.
Author: Brandon B. Taylor Publisher: ISBN: Category : Electronic dissertations Languages : en Pages : 40
Book Description
In addition to the use of pure-tones for testing hearing, speech signals are highly valuable diagnostic tools for identifying and evaluating hearing impairment. Speech audiometry involves the implementation of such signals in the measurement of hearing acuity. One aspect of speech audiometry involves assessment of the speech recognition threshold (SRT) which evaluates an individual's ability to hear and understand speech. While live speech has been used in the past to assess SRT, recorded materials are preferred and have been shown to be advantageous over live speech. High-quality digitally recorded speech audiometry materials have been available in English for some time, but assessment of individuals using speech materials from a language that they do not speak natively has been shown to be both inadequate and inaccurate. Speech audiometry materials have recently become available in many languages. Currently, however, there are no known published recordings for assessment of SRT in the Tagalog language. The goal of this study was to develop psychometrically equivalent speech audiometry materials for measuring speech recognition threshold in Tagalog. During this study Tagalog words were initially recorded by a native speaker selected for accent and vocal quality. The words were reduced down to 90 words to be evaluated in the study. Each of the 90 trisyllabic words were evaluated at 2 dB increments from -10 to 16 dB HL by 20 native Tagalog speakers, all having normal hearing. Based on the results, 34 trisyllabic Tagalog words were selected based on their familiarity to native listeners, relative homogeneity with regards to audibility and psychometric function slope. Each word was then adjusted to make the 50% performance threshold equal to the mean PTA of the 20 research participants (4.3 dB HL). The final edited words were then digitally recorded onto compact disc for distribution and for use in assessing SRT in native Tagalog speakers worldwide.
Author: Michael Martin (OBE.)
Author: Michael Martin
Author: Kenneth Berger
Author: Gary D. Lawson
Author: Björn Hagerman
Author: Dan F. Konkle
Author: Tanya Crawford Mangum
Author: Lance Franklin Greer
Author: Robert Marnard Ghent
Author: Harrell C. Sutherland
Author: Brandon B. Taylor