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Sound System Design and Characteristic Analysis based on Power Line Communication

전력선통신 기반 음향 시스템 설계 및 특성 분석

  • 김관규 (원광대학교 전기전자 및 정보공학부) ;
  • 염경태 (원광대학교 전기전자 및 정보공학부) ;
  • 김관웅 (원광대학교 전기전자 및 정보공학부) ;
  • 김용갑 (원광대학교 전기전자 및 정보공학부)
  • Published : 2008.06.28

Abstract

The paper is to solve the problem of existing sound system, which has difficulties of system organization and the increase of additional install cost and unfriendly interior. To solve the existing system, we drew the new sound system based on PLC and studied it. A transmitter and a receiver were designed using the PLC chip INT5500CS. Sound system was configured with a CD player that sound signals are sent from the transmitter and a speaker connected to the receiver. For analysis of characteristics of this system, a USBPre external sound card and Smaart Live 5 which is a PC-based sound measuring program were added. As a result of our experiment, the measured signal level is $2{\sim}3$[dB] lower than reference signal, latency is 16.69[ms] and the specific character of coherency is bad in high frequency band. Otherwise, this system transmits and receives signals over 90[%] in good condition as a result of measuring pink noise, frequency(1kHz), and phase, magnitude. In view of the result so far achieved, the system designed our team has excellent performance, it resolves defect of existing audio signal transmition system.

Keywords

PLC;Home Network;Sound System

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