Design and implementation of a digital audio tone control unit using an efficient FIR filter structure

Author

Yang, R.H. ; Chiah, S.B. ; Chan, W.Y.

Author_Institution

Dept. of Electr. Eng., Singapore Polytech., Singapore

Volume

1

fYear

1996

fDate

26-29 Nov 1996

Firstpage

273

Abstract

In the present multimedia systems the audio tone control unit is implemented in analogue form. We present an efficient FIR filter structure with low computational complexity for a digital audio tone control unit. The algorithm is successfully implemented in the TMS320C50 and TMS320C30 for CD-players and PC multimedia systems. The interfaces for parameter adjustment are also presented. Compared with the analogue form, the digital tone control unit has better performance and lower cost

Keywords

FIR filters; Hi-Fi equipment; audio discs; computational complexity; digital signal processing chips; gain control; microcomputer applications; multimedia systems; telecommunication control; CD players; FIR filter structure; PC multimedia systems; TMS320C30; TMS320C50; algorithm; digital audio tone control unit; gain control; interfaces; low computational complexity; parameter adjustment; performance; stereo signal; Analog circuits; Attenuation; Audio systems; Computational complexity; Control systems; Costs; Digital control; Finite impulse response filter; Frequency response; Multimedia systems;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON '96. Proceedings., 1996 IEEE TENCON. Digital Signal Processing Applications

Conference_Location

Perth, WA

Print_ISBN

0-7803-3679-8

Type

conf

DOI

10.1109/TENCON.1996.608815

Filename

608815