Abstract

The objective of this thesis is to consider a method for designing a digital audio equalizer. The primary design criteria is minimum audible frequency response error between a digital and a "reference" analog equalizer throughout the entire audio frequency range from 20 Hz to 20 Khz. The first step is to obtain a set of analog filters that suitably represent the reference equalization. From these filters, digital filter coefficients are generated using the bilinear transformation. Then, the digital filters are combined with anti-aliasing and D/A reconstruction filters and a zero-order hold to complete the design. Analysis of methods to minimize frequency axis warping effects on the response of the high frequency filters is presented. The problems associated with realizing a filter with low natural frequency and a very high sample rate is also studied.

Graduation Date

1985

Advisor

Simons, Fred O.

Degree

Master of Science (M.S.)

College

College of Engineering

Format

PDF

Pages

67 p.

Language

English

Rights

Public Domain

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Identifier

DP0021482

Included in

Engineering Commons

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