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Paper Abstract and Keywords
Presentation 2007-03-16 14:00
Evaluation methods for ultra-small size loudspeaker units
Takashi Sugawara, Keiichi Imaoka, Chikara Yoshida, Juro Ohga (SIT)
Abstract (in Japanese) (See Japanese page) 
(in English) This paper describes investigation of measuring methods of small size loudspeaker units for mobile equipment. Although conventional measurements utilize the standard enclosure or baffle specified in IEC 60268-5, these acoustical loads are not suitable for this perpose because they are too large to simulate housings of ordinary mobile equipment, for example mobile telephone sets. This paper presents two sorts of acoustical loads. One is a medium sized enclosure with satisfactory data repeatability. The other is a tube load with satisfactory small acoustical diffraction.
Keyword (in Japanese) (See Japanese page) 
(in English) Loudspeaker unit / Acoustical load / Enclosure / Tube / / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 607, EA2006-115, pp. 35-39, March 2007.
Paper # EA2006-115 
Date of Issue 2007-03-09 (EA) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee EA  
Conference Date 2007-03-16 - 2007-03-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EA 
Conference Code 2007-03-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation methods for ultra-small size loudspeaker units 
Sub Title (in English)  
Keyword(1) Loudspeaker unit  
Keyword(2) Acoustical load  
Keyword(3) Enclosure  
Keyword(4) Tube  
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1st Author's Name Takashi Sugawara  
1st Author's Affiliation Shibaura Institute of Technology (SIT)
2nd Author's Name Keiichi Imaoka  
2nd Author's Affiliation Shibaura Institute of Technology (SIT)
3rd Author's Name Chikara Yoshida  
3rd Author's Affiliation Shibaura Institute of Technology (SIT)
4th Author's Name Juro Ohga  
4th Author's Affiliation Shibaura Institute of Technology (SIT)
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Speaker Author-1 
Date Time 2007-03-16 14:00:00 
Presentation Time 30 minutes 
Registration for EA 
Paper # EA2006-115 
Volume (vol) vol.106 
Number (no) no.607 
Page pp.35-39 
#Pages
Date of Issue 2007-03-09 (EA) 


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