Testing the binaural equal-loudness-ratio hypothesis with hearing-impaired listeners

被引:4
|
作者
Marozeau, Jeremy [1 ,2 ,3 ]
Florentine, Mary [1 ,2 ]
机构
[1] Northeastern Univ, Dept Speech Language Pathol & Audiol FR 106A, Commun Res Lab, Boston, MA 02115 USA
[2] Northeastern Univ, Inst Hearing Speech & Language, Boston, MA 02115 USA
[3] Bion Ear Inst, Melbourne, Vic 3002, Australia
来源
关键词
hearing; loudness; regression analysis; MAGNITUDE ESTIMATION; TONES; FREQUENCY; SUMMATION; THRESHOLD; GROWTH;
D O I
10.1121/1.3133703
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
The primary purpose of the present experiment was to test whether the binaural equal-loudness-ratio hypothesis (i.e., the loudness ratio between monaural and binaural tones presented at the same Sound Pressure Level, SPL, is independent of SPL) holds for hearing-impaired listeners with bilaterally symmetrical hearing losses. The outcome of this experiment provided a theoretical construct for modeling loudness-growth functions. A cross-modality matching task between string length and tones was used to measure three loudness functions for eight listeners: two monaural (left and right) and one binaural. A multiple linear regression was performed to test the significance of presentation mode (monaural vs binaural and left vs right), level, and their interaction. Results indicate that monaural loudness functions differ between the ears of two listeners. The interaction between presentation mode (binaural/monaural) and level was significant for one listener. Although significant, these differences were quite small. Generally, the binaural equal-loudness-ratio hypothesis appears to hold for hearing-impaired listeners. These data also indicate that loudness-growth functions in two ears of an individual are more similar than loudness-growth functions in ears from different listeners. Finally, it is demonstrated that loudness-growth functions can be constructed for individual listeners from binaural level difference for equal-loudness data.
引用
收藏
页码:310 / 317
页数:8
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