AES Journal Forum

Frequency-Zooming ARMA Modeling of Resonant and Reverberant Systems

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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.

JAES Volume 50 Issue 12 pp. 1012-1029; December 2002
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AES - Audio Engineering Society