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Virtual Analog Oscillator Hard Synchronisation: Fourier Series and an Efficient Implementation

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Timoney, Joseph, Lazzarini, Victor, Hodgkinson, Matthieu , Kleimola, Jari, Pekonen, Jussi and Välimäki, Vesa (2012) Virtual Analog Oscillator Hard Synchronisation: Fourier Series and an Efficient Implementation. Proceedings of the 15th Int. Conference on Digital Audio Effects (DAFx-12), York, UK, September 17-21, 2012.

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Abstract

This paper investigates a number of digital methods to produce the Analog subtractive synthesis effect of ‘Hard Synchronisation.’ While the original effect is produced by an explicit waveform phase reset, other approaches are given that produce an equivalent output. In particular, based on measurements taken from a real-analog synthesizer, a comb filtering model is proposed. This description ties in with earlier work but here an explicit structure is provided. This filter-based approach is then shown to be far more computationally efficient than the synchronisation by phase reset. This efficiency is at a minor cost as it is shown that it has a minimal impact on the sonic accuracy.

Item Type:	Article
Keywords:	Virtual Analog Oscillator Hard Synchronisation;
Academic Unit:	Faculty of Science and Engineering > Computer Science
Item ID:	3962
Depositing User:	Matthieu Hodgkinson
Date Deposited:	01 Nov 2012 14:14
Journal or Publication Title:	Proceedings of the 15th Int. Conference on Digital Audio Effects (DAFx-12), York, UK, September 17-21, 2012
Publisher:	DAFx
Refereed:	Yes
Related URLs:	Publisher
URI:	https://mural.maynoothuniversity.ie/id/eprint/3962
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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