A five-band digital equalizer with linear phase was implemented in a 24-bit DSP. A multirate tree filterbank not maximally decimated was used to reduce the required processing power. Taking advantage of certain filter symmetries and with careful filter design, a very efficient algorithm was implemented. The frequency resolution of this equalizer is better than the analog counterparts. The listening tests show good results.

Author: Vieira, J. M. Neto
Affiliation: University de Aveiro and INESe., Aveiro, Portugal
AES Convention: 100 (May 1996) Paper Number: 4216
Publication Date: May 1, 1996
Subject: Signal Processing

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