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2020 年　3 月以前

2024 年 8 月

The 68th Perceptual Frontier Seminar: Order Picking and Rehearsal Session for the JPA meeting 2024 in Kumamoto

Date and time: Tuesday, 27 August, 10:30-11:30
Venue: 601 on the 6th floor of the 3rd Building on the Ohashi campus <http://www.design.kyushu-u.ac.jp/kyushu-u/english/access>
Language: English
Organizer: Kazuo UEDA (Kyushu Univ./ReCAPS/Five-Sense Center)

Program

10:30-11:00 Integrating music in ambulant order picking: Effects on performance, workload, and perceptions
Clarissa PESIGAN*
*Kyushu University

The study mimicked the order-picking task in the warehouse under conditions of silence, occupational sound, continuous music, and interval music to ascertain the impact of the sound environment on the performance, perceptions and workload. The experiment showed the following findings: 1) exposure to occupational sound did not impair the speed and accuracy by which the task was completed relative to a silent working condition but was perceived to engender higher mental workload than in silence and music conditions; 2) the provision of music in combination with the occupational sound neither harmed nor enhanced the task performance; however, continuous playing of music modestly increased the occurrence of errors; and 3) adding music with occupational sound can help improve mood without any negative impact on the focus level and performance and even awareness of the work environment.

11:00-11:30 Intelligibility of interrupted and checkerboard speech with two talkers
Kazuo UEDA*,**,***, Jun HASEGAWA*, Hiroshige TAKEICHI****, Gerard B. REMIJN*,**, and Emi HASUO*,**
*Kyushu University
**Research and Development Center for Five-Sense Devices, Kyushu University
***ReCAPS
****ADSP, R-IH, RIKEN

The intelligibility of temporally interrupted and checkerboard (interrupted in time and frequency) speech stimuli with one and two talkers was examined. Experiments 1-3 examined the effect of increasing the number of talkers from one to two and Experiments 4 and 5 further explored the effects of signal-to-noise ratios (-6, 0, and 6 dB), fixing the level of target speech. The two-talker conditions reduced intelligibility on average by similar amounts (14%) for interrupted and checkerboard speech stimuli in Experiments 1-3. Experiments 4 and 5 showed an interaction effect of number of frequency bands and SNR in checkerboard speech. (A poster presentation rehearsal using a projector.)

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