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Paper Abstract and Keywords
Presentation 2012-12-12 13:45
A study for improvement of the sound quality in PC audio system
Daisuke Kaneko, Minoru Mitsui (IOT)
Abstract (in Japanese) (See Japanese page) 
(in English) Recently ,PC audio which uses PC as reproduction equipment is popular. Since an analog audio signal would be affected, it would lead to sound quality deterioration if D/A conversion are performed inside PC. Therefore the exterior DAC appeared. In PC which only a digital signal process, signal does not change theoretically. However it is said that the sound quality are changed with the components of PC. Its cause is considered to be a digital signal jitter when performing D/A conversion. Jitter is fluctuation of the time interval of upon digital pulse wave from a signal waveform. If jitter is contained, the analog output signal which should not change theoretically will change. In this study, Relationship between the hardware requirement of PC, the amount of jitter, and also sound quality was clarified.
Keyword PC audio,DAC,S/PDIF,jitter,high fidelity reproduction
Keyword (in Japanese) (See Japanese page) 
(in English) PC audio / DAC / S/PDIF / jitter / high fidelity reproduction / / /  
Reference Info. ITE Tech. Rep., vol. 36, no. 54, ME2012-142, pp. 53-56, Dec. 2012.
Paper # ME2012-142 
Date of Issue 2012-12-04 (ME) 
ISSN Print edition: ISSN 1342-6893
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Conference Information
Committee ME IEICE-BioX  
Conference Date 2012-12-11 - 2012-12-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Saitama Inst. of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ME 
Conference Code 2012-12-ME-BioX 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study for improvement of the sound quality in PC audio system 
Sub Title (in English)  
Keyword(1) PC audio  
Keyword(2) DAC  
Keyword(3) S/PDIF  
Keyword(4) jitter  
Keyword(5) high fidelity reproduction  
1st Author's Name Daisuke Kaneko  
1st Author's Affiliation Institute of Technologists (IOT)
2nd Author's Name Minoru Mitsui  
2nd Author's Affiliation Institute of Technologists (IOT)
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Speaker Author-1 
Date Time 2012-12-12 13:45:00 
Presentation Time 25 minutes 
Registration for ME 
Paper # ME2012-142 
Volume (vol) vol.36 
Number (no) no.54 
Page pp.53-56 
Date of Issue 2012-12-04 (ME) 

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