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Convention Paper

The Use of Continuous Phase for Interpolation, Smoothing and Forming Mean Values of Complex Frequency Response Curves

Authors: Panzer, Joerg; Ferekidis, Lampos

AES Convention 116 · Paper 6005 · May 2004

Abstract

The direct application of interpolation, smoothing or mean-value algorithms to complex valued frequency response data may cause interference patterns and, due to this, not yield the expected result. This paper demonstrates the effect of the use of continuous phase in a variety of example-applications, such as interpolation between two frequency response curves, complex smoothing with down-sampling using a logarithmic grid and forming mean values of a set of complex frequency response curves. The continuous phase-approach takes into account the multi-valued property of the exponential function of the phase term.

Details

Published in
AES Convention 116
AES Convention
116
Paper number
6005
Publication date
May 6, 2004
Session subject
Automotive Audio; Instrumentation and Measurement
Type
Convention Paper