Title :
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
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;
Conference_Titel :
TENCON '96. Proceedings., 1996 IEEE TENCON. Digital Signal Processing Applications
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-3679-8
DOI :
10.1109/TENCON.1996.608815
