Design and implementation of a digital audio tone control unit using an efficient FIR filter structure
R.H. Yang, S.B. Chiah, W.Y. Chan · 2002
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.