Nonlinear dynamic macromodeling techniques for audio systems

Jan Ogrodzki; Piotr Bieńkowski

doi:10.1117/12.2205771

11 September 2015 Nonlinear dynamic macromodeling techniques for audio systems

Jan Ogrodzki, Piotr Bieńkowski

Proceedings Volume 9662, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015; 96622A (2015) https://doi.org/10.1117/12.2205771
Event: XXXVI Symposium on Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments (Wilga 2015), 2015, Wilga, Poland

Abstract

This paper develops a modelling method and a models identification technique for the nonlinear dynamic audio systems. Identification is performed by means of a behavioral approach based on a polynomial approximation. This approach makes use of Discrete Fourier Transform and Harmonic Balance Method. A model of an audio system is first created and identified and then it is simulated in real time using an algorithm of low computational complexity. The algorithm consists in real time emulation of the system response rather than in simulation of the system itself. The proposed software is written in Python language using object oriented programming techniques. The code is optimized for a multithreads environment.

Citation Download Citation

Jan Ogrodzki and Piotr Bieńkowski "Nonlinear dynamic macromodeling techniques for audio systems", Proc. SPIE 9662, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015, 96622A (11 September 2015); https://doi.org/10.1117/12.2205771

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