Multi-rate sampling digital audio equalizer

Author

Principe, Jose ; Gugel, Karl ; Adkins, Andrew ; Eatemadi, Sina

Author_Institution

Dept. of Electr. Eng., Florida Univ., Gainesville, FL, USA

fYear

1991

fDate

7-10 Apr 1991

Firstpage

499

Abstract

The advantages of implementing a digital audio equalizer using multirate sampling techniques vs. fixed sampling are presented. A theoretical discussion of multirate sampling equalization design issues such as processor computational bandwidth, number of equalizer bands, frequency resolution in a particular band, and filter type and order are reviewed and weighted accordingly. In addition to those multirate sampling equalizer design concepts, an actual implementation is described. A seven slider high-resolution digital audio equalizer has been developed using the Motorola DSP56001 on the NeXT Machine

Keywords

audio equipment; circuit CAD; computerised signal processing; digital signal processing chips; equalisers; Motorola DSP56001; NeXT Machine; digital audio equalizer; filter order; filter type; frequency resolution; multirate sampling equalization design issues; processor computational bandwidth; seven slider high-resolution digital audio equalizer; Band pass filters; Bandwidth; Digital filters; Digital signal processing chips; Equalizers; Filter bank; Finite impulse response filter; Frequency; Graphics; Sampling methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '91., IEEE Proceedings of

Conference_Location

Williamsburg, VA

Print_ISBN

0-7803-0033-5

Type

conf

DOI

10.1109/SECON.1991.147805

Filename

147805