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Influence of Crossover Frequency on a Hybrid Acoustic Model for Room Impulse Response Synthesis

Rougier, Charlotte (2018) Influence of Crossover Frequency on a Hybrid Acoustic Model for Room Impulse Response Synthesis. MSc by research thesis, University of York.

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Rougier ( MSc Thesis 2018) - Influence of Crossover Frequency on a Hybrid Acoustic Model for Room Impuse Responses Synthesis.pdf - Examined Thesis (PDF)
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Abstract

Room impulse responses (RIRs) of arbitrary enclosures may be synthesized using acoustic modelling methods that all offer advantages and limitations in terms of accuracy and efficiency. The use of a hybrid model, which combines a finite difference time domain (FDTD) approach for the low frequency range, and geometric methods for the mid-high frequency range has been shown to provide appropriate results in the past. This thesis is concerned with the optimisation of such a method by reducing the crossover frequency between the two mixed models to improve its efficiency and cost. To that end, hybrid models are implemented to generate synthesized RIRs with various crossover frequencies. These RIRs are compared with real measurements from two different rooms in the time domain, in the frequency domain, and with the use of acoustic parameters.

Item Type: Thesis (MSc by research)
Academic Units: The University of York > Electronics (York)
Depositing User: Miss Charlotte Rougier
Date Deposited: 11 Jun 2018 11:58
Last Modified: 11 Jun 2018 11:58
URI: http://etheses.whiterose.ac.uk/id/eprint/20566

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  • Influence of Crossover Frequency on a Hybrid Acoustic Model for Room Impulse Response Synthesis. (deposited 11 Jun 2018 11:58) [Currently Displayed]

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