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A System for Rapid Measurement and Direct Customization of Head Related Impulse Responses

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Head-Related Impulse Responses (HRIRs) measurement systems are quite complex and present long acquisition times for an accurate sampling of the full 3D space. Therefore HRIRs customization has become an important research topic. In HRIRs customization some parameters (generally anthropometric measurements) are obtained from new listeners and ad-hoc HRIRs can be retrieved from them. Another way to get new listeners parameters is to measure a subset of the full 3D space HRIRs and extrapolate them in order to obtain a full 3D database. This partial acquisition system, of course, should be rapid and accurate. In this paper we present a system which allows for rapid acquisition and equalization of HRIRs for a subset of the 3D grid. Then a technique to carry out HRIR customization based on the measured HRIRs will be described.

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