Effect of temporal structure of operating sounds on the sound quality of noise emitted from a copy machine

Masayuki Takada, Shin Ichiro Onoda, Akito Hoshi, Shin Ichiro Iwamiya, Rika Hosaka, Koichi Ohtomi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Noise emitted from a copy machine during operation involves periodic impact sounds generated from the printing process, such as those of rollers picking up and releasing paper. To investigate the effect of the temporal structure of operating sounds on the sound quality of copy machine noise, psychoacoustical experiments were carried out using synthesized stimuli in which the timings of three kinds of generated impact sounds were systematically controlled within a cycle of paper output (1000-3000 ms). Results revealed that stimuli with shorter paper output cycles were rated as more pleasant. Furthermore, the impact sound generated when a sheet of paper is correctly positioned before being put into a photoconductor drum by a roller (resist roller) significantly affected auditory pleasantness. In particular, the timing of this impact resist roller sound (RR sound) generated within a paper output cycle was found to be important. Stimuli in which an RR sound was generated at 300- 500 ms after the start of periodic operating sounds were evaluated as most pleasant. Considering the temporal centroid of the RR sound waveform, the timing of the abovementioned RR sound was determined to be approximately 400-600 ms. This timing is similar to the interval of repeated sounds or lights most favored and felt as most natural by humans. The ratings of agreeableness for the timing of RR sounds obtained in the present study are concluded as being related to the interval most favored by humans.

Original languageEnglish
Title of host publication39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010
Pages2749-2758
Number of pages10
Publication statusPublished - Dec 1 2010
Event39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010 - Lisbon, Portugal
Duration: Jun 13 2010Jun 16 2010

Publication series

Name39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010
Volume4

Other

Other39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010
CountryPortugal
CityLisbon
Period6/13/106/16/10

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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