Previous grouped-nonlinearity formulations for Wave Digital Filter (WDF) modeling of nonlinear audio circuits assumed that nonlinear (NL) devices with memoryless voltage–current characteristics were modeled as voltage-controlled current sources (VCCSs). These formulations cannot accommodate nonlinear devices whose equations cannot be written as NL VCCSs, and they cannot accommodate circuits with cutsets composed entirely of current sources (including NL VCCSs). In this paper we generalize independent and dependent variable choice at the root of WDF trees to accommodate both these cases, and review two graph theorems for avoiding forbidden cutsets and loops in general.
|Title of host publication||Proceedings of the 20th International Conference on Digital Audio Effects|
|Editors||Alberto Torin, Brian Hamilton, Stefan Bilbao, Michael Newton|
|Place of Publication||Edinburgh, UK|
|Number of pages||8|
|Publication status||Published - 05 Sep 2017|
|Event||20th International Conference on Digital Audio Effects - University of Edinburgh, Edinburgh, United Kingdom|
Duration: 05 Sep 2017 → 09 Sep 2017
Conference number: 20
|Conference||20th International Conference on Digital Audio Effects|
|Period||05/09/2017 → 09/09/2017|
Werner, K. J., Olsen, M. J., Rest, M., & Parker, J. D. (2017). Generalizing Root Variable Choice in Wave Digital Filters with Grouped Nonlinearities. In A. Torin, B. Hamilton, S. Bilbao, & M. Newton (Eds.), Proceedings of the 20th International Conference on Digital Audio Effects (pp. 176–183). .