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A New Structure of Hybrid DRC to Enhance the Sound Quality of a Digital Amplifier
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  • Journal title : Journal of Broadcast Engineering
  • Volume 21, Issue 4,  2016, pp.621-629
  • Publisher : The Korean Institute of Broadcast and Media Engineers
  • DOI : 10.5909/JBE.2016.21.4.621
 Title & Authors
A New Structure of Hybrid DRC to Enhance the Sound Quality of a Digital Amplifier
Kim, Sung-Woo; You, Hee-Hoon; Choi, Seong Jhin;
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 Abstract
This paper suggests a new structure of hybrid DRC to enhance the psychoacoustic sound quality of a conventional multiband DRC. The proposed hybrid DRC consists of two serially cascaded stages. The front stage DRC is multiband, and it compresses input based on RMS level detection, whereas, the back stage DRC is single band, and it regulates input according to peak level detection. The proposed hybrid DRC shows better loudness while suppressing distortion by clipping. The proposed algorithm was verified through MATLAB simulation, and it was implemented using an FPGA board for listening test. The test result showed that the proposed hybrid structure enhances overall psychoacoustic sound quality compared to conventional structures, which is based on only RMS or peak level detection.
 Keywords
hybrid DRC;RMS level detection;peak level detection;FPGA board;
 Language
Korean
 Cited by
 References
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