Modeling Circuits With Operational Transconductance Amplifiers Using Wave Digital Filters

Ólafur Bogason, Kurt James Werner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)
141 Downloads (Pure)

Abstract

In this paper, we show how to expand the class of audio circuits that can be modeled using Wave Digital Filters (WDFs) to those involving operational transconductance amplifiers (OTAs). Two types of behavioral OTA models are presented and both are shown to be compatible with the WDF approach to circuit modeling. As a case study, an envelope filter guitar effect based around OTAs is modeled using WDFs. The modeling results are shown to be accurate when to compared to state of the art circuit simulation methods.
Original languageEnglish
Title of host publicationProceedings of the 20th International Conference on Digital Audio Effects
EditorsAlberto Torin, Brian Hamilton, Stefan Bilbao, Michael Newton
Place of PublicationEdinburgh, UK
Pages130–137
Number of pages8
ISBN (Electronic)2413-6689
Publication statusPublished - 05 Sep 2017
Event20th International Conference on Digital Audio Effects - University of Edinburgh, Edinburgh, United Kingdom
Duration: 05 Sep 201709 Sep 2017
Conference number: 20
http://www.dafx17.eca.ed.ac.uk/

Conference

Conference20th International Conference on Digital Audio Effects
CountryUnited Kingdom
CityEdinburgh
Period05/09/201709/09/2017
Internet address

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Cite this

Bogason, Ó., & Werner, K. J. (2017). Modeling Circuits With Operational Transconductance Amplifiers Using Wave Digital Filters. In A. Torin, B. Hamilton, S. Bilbao, & M. Newton (Eds.), Proceedings of the 20th International Conference on Digital Audio Effects (pp. 130–137). [89]. http://www.dafx17.eca.ed.ac.uk/papers/DAFx17_paper_89.pdf