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Biomedical subjects

R Miner

Publications and source records attributed to R Miner.

22 records · Page 2Linked to original sources
PubMedDate not supplied

Relation between formant frequencies and optimal octaves in vowel perception.

The purpose of this study was to investigate the relation between the traditional concept of formant frequencies and the controversial concept of optimal octaves in the perception of the vowels/i, a, u/. The vowels (produced by a male speaker of General American English) were filtered through eight bandwidths (80-160, 160-315, 315-630, 630-1,250, 1,250-2,500, 2,500-5,000, 5,000-10,000, and 10,000-20,000 Hz) and presented to two groups of subjects. One group performed similarity ratings on pairs of filtered and nonfiltered stimuli; the other identified the individual filtered and nonfiltered vowels. The optimal bandwidths derived from the data of the two groups were compared to the formant frequencies of our speaker, to those reported in the literature, and to the optimal octaves published earlier by other authors. The results showed that there were specific bandwidths which allowed for correct perception and identification of each vowel, and that these bandwidths were compatible with both the optimal octaves and the formant frequencies reported in the literature for each vowel.

Auditory Perception↗
PubMedDate not supplied

Modified rhyme test and synthetic sentence identification test scores of normal and hearing-impaired subjects listening in multitalker noise.

Articulation functions were established for 35 normal hearing, 6 flat sensorineural, and 6 high frequency sloping sensorineural hearing-impaired subjects using the modified rhyme test (MRT) and synthetic sentence identification test (SSIT) in three message competition ratios (MCRs) of multitalker noise. An analysis of variance revealed significant differences between tests, subject groups, presentation conditions, and interactions between variables. Post hoc analyses revealed that SSIT functions were not significantly different among groups, and that MRT functions were different for each group. The MRT and SSIT were found to be two significantly different tests, each taxing different areas of discrimination. Results suggest that both tests can be used clinically with various MCRs of multitalker noise, but that the poorest MCR for each test does not aid in defining discrimination abilities.

Acoustic Stimulation↗