In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 24, No. 4_Supplement ( 1952-07-01), p. 449-450
Abstract:
Pitch discrimination data for pure tones have been obtained for two trained subjects at frequencies of 250, 1000, and 4000 cps. Two psychophysical procedures were used: In one method (Munson and Gardner's ABX procedure) the subject votes whether the third in a series of three tones sounds more like the first or the second of the series. In the second method (used extensively by Harris) the subject is presented with a standard tone followed by a test tone, and he judges whether the test tone is higher or lower than the standard. The difference limens measured by the second method are for both subjects smaller (by a factor of two or more) than those found by the ABX procedure. This fact gains in significance since one subject has small DLs while the other has rather large ones. Judgmental data obtained from a limited choice situation can provide at best an upper bound for so-called ultimate sensory capacity. Practically speaking, the second method not only yields smaller DLs, but is also easier on the subjects, who can form the discrimination relatively quickly.
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
1952
detail.hit.zdb_id:
1461063-2
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