The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Network-based Digital Crossover for Active Speakers

능동스피커를 위한 네트워크기반 디지털 크로스오버

  • 김변곤 (군산대학교 전자공학과) ;
  • 김관웅 ((주)썬더테크놀로지) ;
  • 김대익 (전남대학교 전기전자통신컴퓨터공학부)
  • Received : 2014.11.28
  • Accepted : 2015.02.09
  • Published : 2015.02.28
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Abstract

Nowadays, there are many innovative products in the pro-audio market thanks to advanced IT technology, DSP is very important technology to process high quality audio signal in SR(Sound Reinforcement) system. Digital audio technology that converged with IT technology can give new user-experience. In this paper, we present a new digital crossover system for active speakers using DSP and network technology. The prototype of crossover module consists of various audio process module such as filters, delay, phase controls and also it provides user to remote monitoring and remote control features by internet connection.

최근 IT기술의 진보에 힘입어 프로오디오분야에 IT기술이 접목된 혁신적인 제품이 개발되고 있다. DSP는 SR 오디오 장비의 고품질 오디오 신호를 처리하는 중요한 역할을 수행한다. IT기술과 디지털오디오기술의 융합은 프로 오디오산업 종사자들에게 새로운 사용자 경험을 제공한다. 본 논문에서는 능동스피커시스템을 위한 인터넷기술과 DSP기술이 접목된 디지털크로스오버를 소개한다. 본 논문에서 구현된 디지털크로스오버는 디지털오디오신호를 처리하기 위한 필터, 딜레이, 위상제어기능을 가지고 있으며, 크로스오버의 동작상태 모니터링과 다수의 파라미터를 제어하기 위해 인터넷 연결기능을 가진다.

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References

  1. Milan Uskokovif, Bojan IvanEevif, "The implementation of digital audio processors in analog multimedia audio systems," ICEcom 2003, Duboronik, Croatia, Oct. 2003, pp. 131-134.
  2. H. R. Jang, S. H. Kim, and Y. H. Chang, "A digital signal processor for low power," in Proc. AP-ASIC, 1999, pp. 42-45.
  3. J. Nurmi, V. Eerola, E. Ofner, A. Gierlinger, 1. Jemej, T. Karema, and T. Raita-aho, "A DSP core for speech coding applications," in Proc. ICASSP, vol. 2, 1994, pp. 429-432.
  4. J. Eyre and J. Bier, "The evolution of DSP processor," IEEE Signal Processing Magazine, vol. 17, Mar. 2000, pp. 43-51. https://doi.org/10.1109/79.826411
  5. M. Dolle, S. Jhand, W. Lehner, O. Muller, and M. Schlett, "A 32-bit DSP microprocessor with reduced complexity," IEEE J. Solid-State Circuits, vol. 32, Jul. 1997, pp. 1056-1066. https://doi.org/10.1109/4.597296
  6. C. -B. Lee, C. -Y. Lee, "Radiational characteristics of speaker directivity using active control," J. of The Korea Institute of Electronic Communication Sciences, vol. 7, no. 1, 2012, pp. 27-31. https://doi.org/10.13067/JKIECS.2012.7.1.027
  7. O. -S. Kwon "A New Adaptive Controller Compensating Nonlinear Distortions of a Speaker," J. of The Korea Institute of Electronic Communication Sciences, vol. 9, no. 10, 2014, pp. 1087-1094. https://doi.org/10.13067/JKIECS.2014.9.10.1087