Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Wave Digital Modeling of the Diode-Based Ring Modulator

Authors: Bernardini, Alberto; Werner, Kurt James; Maffezzoni, Paolo; Sarti, Augusto

AES Convention 144 · Paper 10015 · May 2018

Abstract

The ring modulator is a strongly nonlinear circuit common in audio gear, especially as part of electronic musical instruments. In this paper an accurate model based onWave Digital (WD) principles is developed for implementing the ring modulator as a digital audio effect. The reference circuit is constituted of four diodes and two multi-winding transformers. The proposed WD implementation is based on the Scattering Iterative Method (SIM), recently developed for the static analysis of large nonlinear photovoltaic arrays. In this paper SIM is shown to be suitable for implementing also audio circuits for Virtual Analog applications, such as the ring modulator, since it is stable, robust and comparable to or more efficient than state-of-the-art strategies in terms of computational cost.

Details

Published in
AES Convention 144
AES Convention
144
Paper number
10015
Publication date
May 6, 2018
Session subject
Audio Processing and Effects – Part 2
Affiliation
Politecnico di Milano, Milan, Italy; Queen's University Belfast, Belfast, UK; Sonic Arts Research Centre (SARC) (See document for exact affiliation information.)
Type
Convention Paper