Sound Communication System Design and Characteristic Analysis based on Power Line Communication
Kwan-Kyu Kim, Keong-Tae Yeom, Ji‐Hyoung Kim, Yong-K. Kim · ICEIC : International Conference on Electronics, Informations and Communications · 2008
The paper is to solve the problem of existing sound system which has a difficulties of system organization and the increase of additional install cost and unfriendly interior. To solve the existing system, we drew the new sound communication system based on PLC and characteristic analysis it. A transmitter and a receiver were designed using the PLC chip INT5500CS. An sound communication system was configured with a CD player to which sound signals are sent from the transmitter and a speaker connected to the receiver. For characteristic analysis of this system, a USBPre external sound card and Smaart Live 5 which is a PC-based sound measuring program were added. As a rusult of our experiment, the measured signal level is 2~3[㏈] 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 (1㎑), and phase, magnitude. In view of the result so far achieved ,the system designed this study has excellent perfomance, it resolves defect of existing sound system.