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Sound quality characteristics of refrigerator noise in real living environments with relation to psychoacoustical and autocorrelation function parameters
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10.1121/1.2739440
/content/asa/journal/jasa/122/1/10.1121/1.2739440
http://aip.metastore.ingenta.com/content/asa/journal/jasa/122/1/10.1121/1.2739440

Figures

Image of FIG. 1.
FIG. 1.

Definition of IACC, , and .

Image of FIG. 2.
FIG. 2.

IACC (a) and (b) distribution in the apartment unit.

Image of FIG. 3.
FIG. 3.

Subjective rating scale of noisiness and amenity for individual refrigerator noises.

Image of FIG. 4.
FIG. 4.

Calculation of psychoacoustical parameters.

Image of FIG. 5.
FIG. 5.

Concept of short-time moving ACF in measurements.

Image of FIG. 6.
FIG. 6.

FIG. 6. ACF parameters for an operational phase ending with a rattle sound (——; 1-G and 2-A) and a fade-out sound (- - - -; 1-E and 1-F). (a) , (b) , and (c) .

Image of FIG. 7.
FIG. 7.

Relationships between subjective scale obtained by subjective judgments and subjective scale: (a) values calculated by Eqs. (4) and (5) for psychoacoustical parameters; (b) values calculated by Eqs. (7) and (8) for ACF parameters.

Image of FIG. 8.
FIG. 8.

Subjective rating scale of the sound pressure levels: (a) Noisiness and (b) amenity.

Image of FIG. 9.
FIG. 9.

Percent satisfaction as a function of the sound pressure level: (a) Noisiness and (b) amenity.

Image of FIG. 10.
FIG. 10.

Example of the refrigerator noise with higher (; 1-J, 1-K, and 1-O) and lower noisiness (; 1-E, 1-G, 1-H, and 1-I) in terms of (a) loudness and (b) roughness.

Image of FIG. 11.
FIG. 11.

ACF parameters of refrigerator noise with more (——; 1-J and 1-I) and less noisiness (- - - -; 1-F and 2-A). (a) , (b) , and (c) .

Image of FIG. 12.
FIG. 12.

Definition of ACF parameters. (a) and ; and (b) .

Tables

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TABLE I.

Subjective evaluation scale.

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TABLE II.

Correlation between the noisiness scale and psychoacoustical parameters.

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TABLE III.

Correlation between the noisiness scale and ACF parameters.

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TABLE IV.

Standardized regression coefficients for the psychoacoustical parameters.

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TABLE V.

Standardized regression coefficient of each individual for each psychoacoustical parameter.

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TABLE VI.

Standardized regression coefficients for ACF parameters.

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TABLE VII.

Standardized regression coefficient of each individual for each ACF parameter.

Generic image for table
TABLE VIII.

Correlations between the psychoacoustical and ACF parameters. Top, middle, and bottom figures indicate the correlations for the starting, stationary, and ending phases, respectively.

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/content/asa/journal/jasa/122/1/10.1121/1.2739440
2007-07-01
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Sound quality characteristics of refrigerator noise in real living environments with relation to psychoacoustical and autocorrelation function parameters
http://aip.metastore.ingenta.com/content/asa/journal/jasa/122/1/10.1121/1.2739440
10.1121/1.2739440
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