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Convention Paper

Improvement of Phase Response of a Loudspeaker System Using Digital Signal Processing Techniques

Authors: Yamamoto, Kaoru; Higashi, Hidejiro; Kanda, Jun; Sato, Hiroshi

AES Convention 2r · Paper 2657 · May 1987

Abstract

A dividing network composed of digital filters and a digital delay circuit is designed in order to improve phase response of a multi-way loudspeaker system. The linear phase finite impulse response (FIR) digital filters in the dividing network eliminates the disadvantage of nonlinear phase phase response of an analog dividing network. The digital delay circuit cancels a propagation time difference between a woofer and a tweeter which results from an offset of their diaphragm positions. The linear phase dividing network enables the loudspeaker to accomplish a faithful waveform reproduction. Digital technology also increases the flexibility of loudspeaker system design because phase and amplitude responses of a dividing network can be controlled independently.

Details

Published in
AES Convention 2r
AES Convention
2r
Paper number
2657
Publication date
May 6, 1987
Affiliation
Pioneer Electronic Corporation, Saitama, Japan (See document for exact affiliation information.)
Type
Convention Paper