水平面音像定位実験中の頭部運動 [in Japanese] Head Movements during Horizontal Sound Localization Experiment [in Japanese]
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In this work, head movements for four human subjects were measured simultaneously by horizontal sound localization experiments with band-pass noise for 1440 trials in total for each subject. Subjects were instructed to hold their heads still while each 3-s stimulus was presented. They, however, moved their heads to mark the perceived sound location on an answer sheet during the 3-s inter stimulus interval. Results showed that the variations of the mean head-position in x, y, z axes during the stimulus presentation were less than ±3.5 cm. The variation of the mean head-angle in roll, pitch, yaw angles were less than ±12 degrees. That of the mean yaw-angle of the heads, which should be most crucial for horizontal sound localization experiment, however, was less than ±1.1 degrees. On the other hand, the maximum all head-position shifts during the stimulus presentation were less than 1.5 cm, and the maximum all head-angle shifts were less than 3 degrees. That of the yaw-angle of the heads was less than 1.4 degrees. These results clarified that all subjects followed the instruction and kept their head fairly while each stimulus was presented. Further, it was also confirmed that all subjects firmly returned their head to the proper listening position no later than the next stimulus was played back.
- IEICE technical report
IEICE technical report 110(239), 73-78, 2010-10-14
The Institute of Electronics, Information and Communication Engineers