Presentation 1994/4/22
The Effect of Mirror Images on Sound Source Direction Estimation in Rooms
Masashi Tanaka, Yutaka Kaneda,
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Abstract(in English) The direction of a sound source cannot be correctly estimated in rooms when the amount of reflected sound is more than 5-10 dB relative to the direct sound.We examined this results from how mirror images look.We found that massed mirror images which behave as one source increase the error when a linear microphone array is positioned parallel to a wall and the floor in parallelepiped rooms.We also show that with the cases when the linear array is not placed parallel to a wall and with circular array case,mirror images look more dispersed,which resulted in improvement of the source direction estimation performance.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) microphone array / direction estimation / mirror image / relected sound
Paper # EA94-1
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Conference Information
Committee EA
Conference Date 1994/4/22(1days)
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Registration To Engineering Acoustics (EA)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) The Effect of Mirror Images on Sound Source Direction Estimation in Rooms
Sub Title (in English)
Keyword(1) microphone array
Keyword(2) direction estimation
Keyword(3) mirror image
Keyword(4) relected sound
1st Author's Name Masashi Tanaka
1st Author's Affiliation Nippon Telegraph and Telephone Corporation()
2nd Author's Name Yutaka Kaneda
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation
Date 1994/4/22
Paper # EA94-1
Volume (vol) vol.94
Number (no) 20
Page pp.pp.-
#Pages 8
Date of Issue