Presentation 1997/5/15
Design Method of 2-D Digital FIR Filter for Controlling Sound Images
Kiyoshi NISHIKAWA, Tetsuya YOKOYAMA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper presents a method for adequately controlling sound image by changing the wave-front shape of sound beam using the array of speakers and 2-D FIR filter. The results are. (1)The approximation of the 2-D filter with the complex amplitude is extremely improved by making the radius of the circle specified to change the wavefront shape infinitely large. (2)Sound image becomes to be exactly fixed at the center of the circle. And the changed or newly created wavefronts are concentrically radiated from the sound image, that is, like a focus point. (3)The width of the sound beam radiated from the sound image is determined by the spread of the speaker array and the distance to the sound image.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) sound image / linear array of speakers / 2-D digital FIR filter / sound beam / wavefront
Paper # DSP97-11
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Conference Information
Committee DSP
Conference Date 1997/5/15(1days)
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Registration To Digital Signal Processing (DSP)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Design Method of 2-D Digital FIR Filter for Controlling Sound Images
Sub Title (in English)
Keyword(1) sound image
Keyword(2) linear array of speakers
Keyword(3) 2-D digital FIR filter
Keyword(4) sound beam
Keyword(5) wavefront
1st Author's Name Kiyoshi NISHIKAWA
1st Author's Affiliation Department of Electrical and Computer Engineering, Faculty of Engineering, Kanazawa University()
2nd Author's Name Tetsuya YOKOYAMA
2nd Author's Affiliation Department of Electrical and Computer Engineering, Faculty of Engineering, Kanazawa University
Date 1997/5/15
Paper # DSP97-11
Volume (vol) vol.97
Number (no) 38
Page pp.pp.-
#Pages 8
Date of Issue