A digital emulation of the Elektromesstechnik (EMT) 140 plate reverberator is presented. The EMT 140 consists of a signal plate and a moveable damping plate; it is approximately linear and time invariant, and its impulse response is characterized by a whip-like onset and high echo density. Here, the hybrid reverberator proposed by Stewart and Murphy, in which a short convolution is run in parallel with a feedback delay network (FDN), is used to model the plate. The impulse response onset is only weakly dependent on the damping control, and is modeled by the convolution; the FDN is fit to the impulse response tail. The echo density, equalization and decay rates are matched at the transition between the convolution and FDN.

Authors: Abel, Jonathan S.; Berners, David P.; Greenblatt, Aaron
Affiliations: Stanford University, Stanford, CA, USA; Universal Audio inc., Scotts Valley, CA, USA(See document for exact affiliation information.)
AES Convention: 127 (October 2009) Paper Number: 7928
Publication Date: October 1, 2009
Subject: Digital Audio Effects

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