A ten-channel equalizer for digital audio-applications

Author

Sauvagerd, Ulrich

Author_Institution

Lehrstuhl fur Nachrichtentech., Ruhr-Univ. Bochum, West Germany

Volume

36

Issue

2

fYear

1989

fDate

2/1/1989 12:00:00 AM

Firstpage

276

Lastpage

280

Abstract

The design and implementation of a high-quality digital audio equalizer set composed of 10 equalizer sections with a worst-case overall signal-to-noise ratio greater than 90 dB, which is suitable for CD (compact-disc) applications is discussed. The implementation of the equalizer sections has been realized with wave digital filters. Each equalizer section consists of a resistively terminated bandpass or bandstop filter, respectively, i.e. a simple second-order section. This simple structure makes possible a hardware implementation of the equalizer set with digital signal processors or a custom design implementation

Keywords

Hi-Fi equipment; equalisers; wave digital filters; CD; audio equalizer set; bandstop filter; custom design; digital audio-applications; digital signal processors; hardware implementation; resistively terminated bandpass; second-order section; ten-channel equalizer; wave digital filters; worst-case overall signal-to-noise ratio; Attenuation; Band pass filters; Circuits and systems; Digital filters; Digital signal processors; Dynamic range; Equalizers; Frequency; Hardware; Lattices; Signal design; Signal to noise ratio;

fLanguage

English

Journal_Title

Circuits and Systems, IEEE Transactions on

Publisher

ieee

ISSN

0098-4094

Type

jour

DOI

10.1109/31.20205

Filename

20205