TY - GEN
T1 - Subjective impression of copy machine noises
T2 - 38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
AU - Kuwano, Sonoko
AU - Namba, Seiichiro
AU - Takehira, Osamu
AU - Fastl, Hugo
PY - 2009
Y1 - 2009
N2 - Copy machines are often used in offices where many people are working and their noises are desired not to be uncomfortable. Two experiments were conducted to examine the subjective impression of various copy machines and to find appropriate physical metrics to evaluate and predict the sound quality of copy machines. Experiment 1 was conducted in Japan, Germany and the U.S. using original sounds of copy machines. It was found that the value of LAeq has a large effect on the impression of copy machines. In order to find the effect of other physical parameters, Experiment 2 was conducted using the sounds with equal value of LAeq. Experiment 2 was conducted in Japan and Germany. It was suggested from the results of both experiments that L Aeq and sharpness have a significant effect on sound quality and that CI (comfort index) composed of LAeq and sharpness seems a good index of sound quality.
AB - Copy machines are often used in offices where many people are working and their noises are desired not to be uncomfortable. Two experiments were conducted to examine the subjective impression of various copy machines and to find appropriate physical metrics to evaluate and predict the sound quality of copy machines. Experiment 1 was conducted in Japan, Germany and the U.S. using original sounds of copy machines. It was found that the value of LAeq has a large effect on the impression of copy machines. In order to find the effect of other physical parameters, Experiment 2 was conducted using the sounds with equal value of LAeq. Experiment 2 was conducted in Japan and Germany. It was suggested from the results of both experiments that L Aeq and sharpness have a significant effect on sound quality and that CI (comfort index) composed of LAeq and sharpness seems a good index of sound quality.
UR - http://www.scopus.com/inward/record.url?scp=84870043700&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84870043700
SN - 9781615676903
T3 - 38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
SP - 3296
EP - 3302
BT - 38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
Y2 - 23 August 2009 through 26 August 2009
ER -