Harmonic instability of digital soft clipping algorithms

Enderby, S. and Baracskai, Z. (2012) Harmonic instability of digital soft clipping algorithms. In: 15th International Conference on Digital Audio Effects, DAFx 2012, 17 September 2012 through 21 September 2012, York; United Kingdom.

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Abstract

In this paper several different digital soft clipping algorithms are described and analysed. It is discussed how the quality of each algorithm can be estimated. A testing methodology is devised to show the levels of nonlinearities produced as a function of the input signal amplitude. It is proposed that, while all soft clipping algorithms produce higher order nonlinearities, the instability of the produced harmonics plays a crucial role in the transparency of the effect. Existing and novel clipping algorithms are thus compared and classified based on their measured properties, including total harmonic distortion and inter-modulation distortion estimates. This paper proposes a conclusion related to the quality and properties of different algorithms.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Clipping algorithms, Harmonic instability, Higher order nonlinearity, Measured properties, Signal amplitude, Testing methodology, Total harmonic distortion (THD), Algorithms
Subjects: G400 Computer Science
Divisions: UoA Collections > UoA11: Computer Science and Informatics
Faculty of Computing, Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Computing and Digital Technology
Faculty of Computing, Engineering and the Built Environment > School of Computing and Digital Technology > Digital Media Technology
Depositing User: Hussen Farooq
Date Deposited: 20 Jul 2016 13:03
Last Modified: 20 Jul 2016 13:03
URI: http://www.open-access.bcu.ac.uk/id/eprint/2181

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