PubMed · 5970333
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E S Mendelson. 1966. Acoustic reflexometry.. https://doi.org/10.3109/00016486609119558
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Speech spectra and Speech Intelligibility Index (SII) transfer functions are presented for the Swedish PB word material (SPB) and for a Swedish sentence material known as Hagerman's Sentences (HS). The transfer function were derived from the normative recognition scores in noise previously obtained from normal-hearing subjects. The transfer function for HS is very similar to a transfer function for familiar English sentences. The function for SPB is more like functions of other monosyllabic word test materials. The slope of the HS transfer function is twice as steep as the slope of the SPB function. The long-term rms spectra of the speech materials and their associated noise signals are presented and recommended to facilitate accurate SII calculations with these speech tests.
A hearing performance standard for new police officer candidates in the State of Michigan was developed by a task force consisting of the authors and four members of the Michigan Law Enforcement Officers Training Council. Ratings of the importance of hearing sensitivity and speech intelligibility in performing each of 135 specific job tasks formed the basis for pass-fail criteria. The standard, described in this report, includes specifications for unaided and aided hearing performance, types of hearing assessment measures, hearing measurement procedures, and the appropriate examining professional. The authors believe that the standard provides an appropriate accommodation to hearing-impaired law enforcement officer candidates with respect to The Americans with Disabilities Act.
Selected topics relating to the diagnosis and management of disorders that affect hearing are reviewed, including updates on the outcome of attempted hearing preservation in the resection of acoustic neuromas. Newly defined indications and contraindications for surgical correction of stapes fixation are discussed. Reports of unilateral chemical ablation of vestibular function as treatment for intractable vertigo resulting from Meniére's disease, and the effects of this procedure on hearing are presented. Promising new insights into the etiology and treatment of autoimmune hearing loss are described. Emerging developments in measuring otoacoustic emissions and their potential clinical applications are discussed.