Implementation of a new Method to Digital Audio Equalization
Gabriel Falcão, Luís Gustavo Martins, Miguel F. M. Sousa, Filipe S. Pinto, Aníbal J. S. Ferreira · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) · 1999
This paper describes the design and implementation of an FIR based 20-band stereo audio equalizer that offers good spectral selectivity and phase response. The underlying theory of fast filtering in the frequency domain is addressed, the architecture of the DSP system using a single TI TMS320C31 processor is presented, the functionality of the interface, either software-based or hardware-based is described, and a few test results are presented and discussed.