AES E-Library

Design of a Phase-Linear Digital Audio Equalizer

This paper describes a technique for designing a phase-linear digital audio octave stereo equalizer using a MC6809 microprocessor and a TRW TDC1010 multiplier-accumulator. The digital filter structure is composed of four parallel paths. Each path, consisting of a separate FIR filter implemented by a multiplier-accumulator, processes a distinct, non-overlapping segment of the audio-frequency spectrum. Four paths were chosen to allow the use of fewer coefficients than that required by a single path. The microprocessor is used to control the selection of coefficients for each digital filter in order to obtain an overall desired frequency response selected by the users.

Authors: Riemer, T. E.; Trahan, R. E.
Affiliation: University of New Orleans, New Orleans, LA
AES Convention:74 (October 1983) Paper Number:2045 Import into BibTeX
Subject:Signal Processing—Digital

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes10)   /pp8185/pp8310/2132.pdf

Start a discussion about this paper!