Ben Holmes

Ben Holmes
Queen's University Belfast | QUB · Department of Digital Communications

BSc

About

4
Publications
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19
Citations
Introduction
Ben Holmes currently works at the Sonic Arts Research Centre, Queen's University Belfast. Ben does research in Electronic Engineering. Their current project is 'Virtual Analog Modelling.'

Publications

Publications (4)
Conference Paper
Full-text available
Physical circuit models have an inherent ability to simulate the behaviour of user controls as exhibited by, for example, potentiometers. Working to accurately model the user interface of musical circuits, this work provides potentiometer 'laws' that fit to the underlying characteristics of linear and logarithmic potentiometers. A strategy of ident...
Conference Paper
Full-text available
The Ebers-Moll model has been widely used to represent Bipolar Junction Transistors (BJTs) in Virtual Analogue (VA) circuits. An investigation into the validity of this model is presented in which the Ebers-Moll model is compared to BJT models of higher complexity , introducing the Gummel-Poon model to the VA field. A comparison is performed using...
Conference Paper
Full-text available
In this work we explore optimising parameters of a physical circuit model relative to input/output measurements, using the Dallas Rangemaster Treble Booster as a case study. A hybrid meta-heuristic/gradient descent algorithm is implemented, where the initial parameter sets for the optimisation are informed by nominal values from schematics and data...
Conference Paper
Full-text available
Iterative solvers are required for the discrete-time simulation of nonlinear behaviour in analogue distortion circuits. Unfortunately, these methods are often computationally too expensive for real-time simulation. Two methods are presented which attempt to reduce the expense of iterative solvers. This is achieved by applying information that is de...

Projects