Virtual Analog Oscillator Hard Synchronisation: Fourier series and an efficient implementation

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Timoney, Joseph and Lazzarini, Victor (2012) Virtual Analog Oscillator Hard Synchronisation: Fourier series and an efficient implementation. In: DAFX-12 the 15th Int. Conference on Digital Audio Effects, September 17-21 2012, York, Uk.

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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:	Conference or Workshop Item (Paper)
Keywords:	Virtual Analog Oscillator; Hard Synchronisation; Fourier series;
Academic Unit:	Faculty of Arts,Celtic Studies and Philosophy > Music Faculty of Science and Engineering > Computer Science
Item ID:	4121
Depositing User:	Joseph Timoney
Date Deposited:	28 Jan 2013 12:52
Refereed:	Yes
Related URLs:	Publisher
URI:	https://mural.maynoothuniversity.ie/id/eprint/4121
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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Virtual Analog Oscillator Hard Synchronisation: Fourier series and an efficient implementation

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