Switching Transients and Threshold Determination
- 1 March 1958
- journal article
- research article
- Published by American Speech Language Hearing Association in Journal of Speech and Hearing Research
- Vol. 1 (1) , 52-60
- https://doi.org/10.1044/jshr.0101.52
Abstract
Thresholds for 500-millisecond tones beginning at the time axis and rising to maximum amplitude in .25 cycle, 1.25 cycles, 2.25 cycles, 5,25 cycles and 100 milliseconds were determined at 125, 250, 500, 1000, 2000, 3000, 4000, 6000, and 8000 cps by the method of adjustment in both normal and impaired ears. Switching transients have no significant influence upon threshold determination. In impaired ears, influence of switching transients on threshold determination was related to contour of hearing loss, degree of hearing loss and relative amount of transient energy present. These transients have a decreasing influence on threshold for impaired ears when pure tone stimulus had a rise-decay of at least 5.25 cycles.Keywords
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