Matrix Bridge Impedance

A passive matrix bridge admittance (e.g., taking all six strings of the guitar together) can be conveniently synthesized as a vector of positive-real scalar admittances multiplied by a positive definite matrix [25]. In [25], a dual-polarization guitar-string model is connected to a matrix reflectance computed from the matrix driving-point impedance at the bridge.

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About the Author: Julius Orion Smith III
Julius Smith's background is in electrical engineering (BS Rice 1975, PhD Stanford 1983). He is presently Professor of Music and Associate Professor (by courtesy) of Electrical Engineering at Stanford's Center for Computer Research in Music and Acoustics (CCRMA), teaching courses and pursuing research related to signal processing applied to music and audio systems. See http://ccrma.stanford.edu/~jos/ for details.