Definition of IACC, , and .
IACC (a) and (b) distribution in the apartment unit.
Subjective rating scale of noisiness and amenity for individual refrigerator noises.
Calculation of psychoacoustical parameters.
Concept of short-time moving ACF in measurements.
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) .
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.
Subjective rating scale of the sound pressure levels: (a) Noisiness and (b) amenity.
Percent satisfaction as a function of the sound pressure level: (a) Noisiness and (b) amenity.
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.
ACF parameters of refrigerator noise with more (——; 1-J and 1-I) and less noisiness (- - - -; 1-F and 2-A). (a) , (b) , and (c) .
Definition of ACF parameters. (a) and ; and (b) .
Subjective evaluation scale.
Correlation between the noisiness scale and psychoacoustical parameters.
Correlation between the noisiness scale and ACF parameters.
Standardized regression coefficients for the psychoacoustical parameters.
Standardized regression coefficient of each individual for each psychoacoustical parameter.
Standardized regression coefficients for ACF parameters.
Standardized regression coefficient of each individual for each ACF parameter.
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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