RT-WDF—A Modular Wave Digital Filter Library with Support for Arbitrary Topologies and Multiple Nonlinearities

Maximilian Rest; W. Ross Dunkel; Kurt James Werner; Julius O. Smith

RT-WDF—A Modular Wave Digital Filter Library with Support for Arbitrary Topologies and Multiple Nonlinearities

Maximilian Rest, W. Ross Dunkel, Kurt James Werner, Julius O. Smith

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

925 Downloads (Pure)

Abstract

Wave Digital Filters (WDF) are a popular approach for virtual analog modeling. They provide a computationally effi- cient way to simulate lumped physical systems with well-studied numerical properties. Recent work by Werner et al. enables the use of WDFs to model systems with complicated topologies and multiple/multiport nonlinearities, to a degree not previously known.

We present an efficient, portable, modular, and open-source C++ library for real time Wave Digital Filter modeling: RT-WDF. The library allows a WDF to be specified in an object-oriented tree with the same structure as a WDF tree and implements the most recent advances in the field. We give an architectural overview and introduce the main concepts of operation on three separate case studies: a switchable attenuator, the Bassman tone stack, and a common-cathode triode amplifier. It is further shown how to expand the existent set of non-linear models to encourage custom extensions.

Original language	English
Title of host publication	Proceedings of the 19th International Conference on Digital Audio Effects
Editors	Pavel Rajmic, František Rund, Jiří Schimmel
Place of Publication	Brno, Czech Republic
Publisher	DAFx
Pages	287–294
Number of pages	8
Publication status	Published - 05 Sep 2016
Externally published	Yes
Event	19th International Conference on Digital Audio Effects - Brno, Czech Republic Duration: 05 Sep 2016 → 09 Sep 2016

Publication series

Name	DAFx Proceedings
Publisher	DAFx
ISSN (Print)	2413-6700
ISSN (Electronic)	2413-6689

Conference

Conference	19th International Conference on Digital Audio Effects
Abbreviated title	DAFx-16
Country	Czech Republic
City	Brno
Period	05/09/2016 → 09/09/2016

Access to Document

RT-WDF—A Modular Wave Digital Filter Library with Support for Arbitrary Topologies and Multiple Nonlinearities
Copyright 2016 The Authors Published in the Proceedings of the 19th International Conference on Digital Audio Effects (DAFx-16)
Final published version, 473 KBLicence: Unspecified

http://dafx16.vutbr.cz/proceedings.htmlLicence: Unspecified

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1 Participation in conference

19th International Conference on Digital Audio Effects
Kurt Werner (Participant)
05 Sep 2016 → 09 Sep 2016
Activity: Participating in or organising an event types › Participation in conference

Cite this

Rest, M., Dunkel, W. R., Werner, K. J., & Smith, J. O. (2016). RT-WDF—A Modular Wave Digital Filter Library with Support for Arbitrary Topologies and Multiple Nonlinearities. In P. Rajmic, F. Rund, & J. Schimmel (Eds.), Proceedings of the 19th International Conference on Digital Audio Effects (pp. 287–294). [35] (DAFx Proceedings). DAFx. http://dafx16.vutbr.cz/proceedings.html

Rest, Maximilian ; Dunkel, W. Ross ; Werner, Kurt James ; Smith, Julius O. / RT-WDF—A Modular Wave Digital Filter Library with Support for Arbitrary Topologies and Multiple Nonlinearities. Proceedings of the 19th International Conference on Digital Audio Effects. editor / Pavel Rajmic ; František Rund ; Jiří Schimmel. Brno, Czech Republic : DAFx, 2016. pp. 287–294 (DAFx Proceedings).

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title = "RT-WDF—A Modular Wave Digital Filter Library with Support for Arbitrary Topologies and Multiple Nonlinearities",

abstract = "Wave Digital Filters (WDF) are a popular approach for virtual analog modeling. They provide a computationally effi- cient way to simulate lumped physical systems with well-studied numerical properties. Recent work by Werner et al. enables the use of WDFs to model systems with complicated topologies and multiple/multiport nonlinearities, to a degree not previously known.We present an efficient, portable, modular, and open-source C++ library for real time Wave Digital Filter modeling: RT-WDF. The library allows a WDF to be specified in an object-oriented tree with the same structure as a WDF tree and implements the most recent advances in the field. We give an architectural overview and introduce the main concepts of operation on three separate case studies: a switchable attenuator, the Bassman tone stack, and a common-cathode triode amplifier. It is further shown how to expand the existent set of non-linear models to encourage custom extensions.",

author = "Maximilian Rest and Dunkel, {W. Ross} and Werner, {Kurt James} and Smith, {Julius O.}",

year = "2016",

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language = "English",

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publisher = "DAFx",

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editor = "Pavel Rajmic and Franti{\v s}ek Rund and Ji{\v r}{\'i} Schimmel",

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Rest, M, Dunkel, WR, Werner, KJ & Smith, JO 2016, RT-WDF—A Modular Wave Digital Filter Library with Support for Arbitrary Topologies and Multiple Nonlinearities. in P Rajmic, F Rund & J Schimmel (eds), Proceedings of the 19th International Conference on Digital Audio Effects., 35, DAFx Proceedings, DAFx, Brno, Czech Republic, pp. 287–294, 19th International Conference on Digital Audio Effects , Brno, Czech Republic, 05/09/2016. <http://dafx16.vutbr.cz/proceedings.html>

RT-WDF—A Modular Wave Digital Filter Library with Support for Arbitrary Topologies and Multiple Nonlinearities. / Rest, Maximilian; Dunkel, W. Ross; Werner, Kurt James; Smith, Julius O.

Proceedings of the 19th International Conference on Digital Audio Effects. ed. / Pavel Rajmic; František Rund; Jiří Schimmel. Brno, Czech Republic : DAFx, 2016. p. 287–294 35 (DAFx Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - RT-WDF—A Modular Wave Digital Filter Library with Support for Arbitrary Topologies and Multiple Nonlinearities

AU - Rest, Maximilian

AU - Dunkel, W. Ross

AU - Werner, Kurt James

AU - Smith, Julius O.

PY - 2016/9/5

Y1 - 2016/9/5

N2 - Wave Digital Filters (WDF) are a popular approach for virtual analog modeling. They provide a computationally effi- cient way to simulate lumped physical systems with well-studied numerical properties. Recent work by Werner et al. enables the use of WDFs to model systems with complicated topologies and multiple/multiport nonlinearities, to a degree not previously known.We present an efficient, portable, modular, and open-source C++ library for real time Wave Digital Filter modeling: RT-WDF. The library allows a WDF to be specified in an object-oriented tree with the same structure as a WDF tree and implements the most recent advances in the field. We give an architectural overview and introduce the main concepts of operation on three separate case studies: a switchable attenuator, the Bassman tone stack, and a common-cathode triode amplifier. It is further shown how to expand the existent set of non-linear models to encourage custom extensions.

AB - Wave Digital Filters (WDF) are a popular approach for virtual analog modeling. They provide a computationally effi- cient way to simulate lumped physical systems with well-studied numerical properties. Recent work by Werner et al. enables the use of WDFs to model systems with complicated topologies and multiple/multiport nonlinearities, to a degree not previously known.We present an efficient, portable, modular, and open-source C++ library for real time Wave Digital Filter modeling: RT-WDF. The library allows a WDF to be specified in an object-oriented tree with the same structure as a WDF tree and implements the most recent advances in the field. We give an architectural overview and introduce the main concepts of operation on three separate case studies: a switchable attenuator, the Bassman tone stack, and a common-cathode triode amplifier. It is further shown how to expand the existent set of non-linear models to encourage custom extensions.

M3 - Conference contribution

T3 - DAFx Proceedings

SP - 287

EP - 294

BT - Proceedings of the 19th International Conference on Digital Audio Effects

A2 - Rajmic, Pavel

A2 - Rund, František

A2 - Schimmel, Jiří

PB - DAFx

CY - Brno, Czech Republic

T2 - 19th International Conference on Digital Audio Effects

Y2 - 5 September 2016 through 9 September 2016

ER -