In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 52, No. 1A_Supplement ( 1972-07-01), p. 171-171
Abstract:
The relationship of perceived loudness across frequency was investigated with 40 adult subjects. A method of contant stimuli was employed whereby the subjects made equal-loudness judgments to Tones of 125, 250, 500 Hz, and 2, 3, 4, 6, and 8 kHz compared to a 1 kHz reference. Equal-loudness contours were established at 10-dB intervals from 18 to 108 dB SPL. An especially constructed apparatus generated, programmed, and regulated the stimuli and produced reference and comparison pure tones with less than 1% harmonic distortion at all frequencies tested. Some important differences between the present results and those of previous authors were noted. First, the equal-loudness contours were of less severe slope at the lower frequencies than those of previous investigators. Second, the characteristic notch at 8 kHz shown by previous studies was seen, but was shifted to 6 kHz.
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
1972
detail.hit.zdb_id:
1461063-2
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