A consideration of mechanism of audio signa deterioration caused by propagation noise between audio equipment

Takahiro Fujino, Takahiro Yoshida

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

Even when audio equipment, the sound quality of music playback is deteriorated by various factors. This study examines the deterioration in sound quality due to the type and state of power supply used in audio equipment. We consider that the power supply of the equipment influences the AC potential of the equipment, the propagation noise between parts of the equipment and the audio signal, in that order. Therefore, we measured the ground AC potential of audio equipment, the propagation noise on the ground line of the universal serial bus and the spectrum of the playback audio signal. Then, we analyzed the relationship between these signals. The results reveal a correlation between these signals, which confirms the proposed mechanism.

Original languageEnglish
Title of host publication2017 Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages155-157
Number of pages3
ISBN (Electronic)9781538639122
DOIs
Publication statusPublished - 11 Jul 2017
Event2017 Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2017 - Seoul, Korea, Republic of
Duration: 20 Jun 201723 Jun 2017

Publication series

Name2017 Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2017

Conference

Conference2017 Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2017
Country/TerritoryKorea, Republic of
CitySeoul
Period20/06/1723/06/17

Keywords

  • Audio equipment
  • harmonic distortion
  • intermodulauön distortion
  • power supply
  • propagation noise
  • signal deterioration

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