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Background There is an increasing need to administer hearing tests outside of sound-attenuating rooms. Maximum permissible ambient noise levels (MPANLs) from published in standards (Occupational Health and Safety Administration [OSHA] 1983; Ame[...]Article
Richard H. Wilson, Auteur |Background: In 1940, a cooperative effort by the radio networks and Bell Telephone produced the volume unit (vu) meter that has been the mainstay instrument for monitoring the level of speech signals in commercial broadcasting and research labo[...]Article
Purpose This project was undertaken to develop automated tests of speech recognition, including speech-recognition threshold (SRT) and word-recognition test, using forced-choice responses and computerized scoring of responses. Specific aims wer[...]Article
Objectives: Confidence levels were established to determine if a word-recognition score is within the expected range for a hearing loss group (based on 3-frequency pure-tone average) or significantly below or above the expected range. Design:[...]Article
Background: The Auditec of St. Louis and the Department of Veterans Affairs (VA) recorded versions of the Northwestern University Auditory Test No. 6 (NU-6) are in common usage. Data on young adults with normal hearing for pure tones (YNH) de[...]Article
Background In the 1950s, with monitored live voice testing, the vu meter time constant and the short durations and amplitude modulation characteristics of monosyllabic words necessitated the use of the carrier phrase amplitude to monitor (indir[...]Article
Background: Two previous experiments from our laboratory with 70 interrupted monosyllabic words demonstrated that recognition performance was influenced by the temporal location of the interruption pattern. The interruption pattern (10 interr[...]Article
Robert H. Margolis, Auteur ; Arpana Rao, Auteur ; Richard H. Wilson, Auteur ; George L. Saly, Auteur |Objectives A method for testing auditory processing of non-linguistic speech-like stimuli was developed and evaluated. Design Monosyllabic words were temporally reversed and distorted. Stimuli were matched for spectrum and level. Listeners [...]Article
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English materials for speech audiometry are well established. In Spanish, speech-recognition materials are not standardized with monosyllables, bisyllables, and trisyllables used in word-recognition protocols. This study aimed to establi[...]Article
Recognition Performance of Interrupted Monosyllabic Words: The Effects of Ten Interruption Locations
A previous experiment with 70 interrupted monosyllabic words demonstrated that recognition performance was influenced by the location of an interruption pattern (Wilson, 2014). The interruption paradigm (10 interruptions/sec, 50% duty cycle peri[...]Article
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Richard H. Wilson, Auteur ; Rachel McArdle, Auteur |Background: In developing the PB-50 word lists, J. P. Egan suggested five developmental principles, two of which were “equal average difficulty” and an “equal range of difficulty” among the lists (page 963). Egan was satisfied that each of the [...]Article
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Background The amplitude and temporal asymmetry of the speech waveform are mostly associated with voiced speech utterances and are obvious in recent graphic depictions in the literature. The asymmetries are attributed to the presence and intera[...]
