We present a physical, modular computational acoustic model of the well-preserved interior architecture at the 3,000-year-old Andean ceremonial center Chavv?n de Huv°ntar. Our previous model prototype [Kolar et. al. 2010] translated the acoustically coupled topology of Chavv?n gallery forms to a model based on digital waveguides (bi-directional by definition), representing passageways, connected through reverberant scattering junctions, representing the larger room-like areas. Our new approach treats all architectural units as ‚Äúreverberant‚Äù digital waveguides, with scattering junctions at the discrete planes defining the unit boundaries. In this extensible and efficient lumped-element model, we combine architectural dimensional and material data with sparsely measured impulse responses to simulate multiple and circulating arrival paths between sound sources and listeners.

Authors: Collecchia, Regina E.; Kolar, Miriam A.; Abel, Jonathan S.
Affiliation: Stanford University, Stanford, CA, USA
AES Convention: 133 (October 2012) Paper Number: 8696
Publication Date: October 25, 2012
Subject: Audio Effects and Physical Modeling

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