An Improved and Generalized Diode Clipper Model for Wave Digital Filters

Kurt James Werner, Vaibhav Nangia, Alberto Bernardini, Julius Smith, Augusto Sarti

Research output: Contribution to conferencePaper

37 Citations (Scopus)

Abstract

We derive a novel explicit wave-domain model for “diode clipper" circuits with an arbitrary number of diodes in each orientation, applicable, e.g., to wave digital filter emulation of guitar distortion pedals. Improving upon and generalizing the model of Paiva et al. (2012), which approximates reverse-biased diodes as open circuits, we derive a model with an approximated correction term using two Lambert W functions. We study the energetic properties of each model and clarify aspects of the original derivation. We demonstrate the model's validity by comparing a modded Tube Screamer clipping stage emulation to SPICE simulation.
Original languageEnglish
Number of pages10
Publication statusPublished - 29 Oct 2015
Externally publishedYes
Event139th Convention of the Audio Engineering Society - Jacob Javits Center, New York City, United States
Duration: 29 Oct 201501 Nov 2015
Conference number: 139
http://www.aes.org/events/139/

Conference

Conference139th Convention of the Audio Engineering Society
Abbreviated titleAES
CountryUnited States
CityNew York City
Period29/10/201501/11/2015
Internet address

Fingerprint

Dive into the research topics of 'An Improved and Generalized Diode Clipper Model for Wave Digital Filters'. Together they form a unique fingerprint.

Cite this