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Frequency-Zooming ARMA Modeling of Resonant and Reverberant Systems

Discrete-time analysis and modeling of reverberant and resonating systems has many applications in audio and acoustics. The methodology of ARMA modeling by pole-zero filters for measured impulse responses was investigated. In addition to an overview of the standard AR and ARMA techniques, a spectral zooming technique is proposed, which is useful for resolving very closely positioned modes and high-density modal clusters. Application cases related to the analysis and modeling of room responses, loudspeaker room equalization, and the estimation of parameters for musical instrument modeling are studied.

Authors: Karjalainen, Matti; Esquef, Paulo A. A.; Antsalo, Poju; Mäkivirta, Aki; Välimäki, Vesa
Affiliations: Helsinki University of Technology, Laboratory of Acoustics and Audio Signal Processing, Espoo, Finland ; Genelec Oy, Iisalmi, Finland ; Tampere University of Technology, Pori School of Technology and Economics, Pori, Finland(See document for exact affiliation information.)
JAES Volume 50 Issue 12 pp. 1012-1029; December 2002 Import into BibTeX

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