Sound localization based on a barn owl's auditory system
Conference proceedings article
ผู้เขียน/บรรณาธิการ
กลุ่มสาขาการวิจัยเชิงกลยุทธ์
ไม่พบข้อมูลที่เกี่ยวข้อง
รายละเอียดสำหรับงานพิมพ์
รายชื่อผู้แต่ง: Suksakulchai S.
ผู้เผยแพร่: Hindawi
ปีที่เผยแพร่ (ค.ศ.): 2008
หน้าแรก: 1016
หน้าสุดท้าย: 1019
จำนวนหน้า: 4
ISBN: 9788995003893
นอก: 0146-9428
eISSN: 1745-4557
ภาษา: English-Great Britain (EN-GB)
บทคัดย่อ
The purpose of this paper was to develop a two-dimension sound localization system which can be used to localize a sound source in two dimensions, the elevation and azimuth directions. A technique used for the proposed system was based on auditory systems of barn owls. The ear systems of barn owls have special structures in which the levels of both ears are not lined up in the same level in order to distinguish elevations of sound source locations. The proposed system was tested to detect sound sources that were placed in the range of 3 meters away from the proposed system with nine different positions, Upper Left, Upper Center, Upper Right, Middle Left, Middle Center, Middle Right, Lower Left, Lower Center and Lower Right, in front of the proposed system. A function generator was used as a sound source in order to produce a sound of 4 kHz with sound's intensity not less than 90dB measured at 1 meter away. The results showed that the proposed system was able to locate the sound sources successfully.
คำสำคัญ
2D sound localization, Barn owl's auditory system, IID, Interaural intensity difference, Interaural time difference, ITD
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