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Computed Hrirs and Ears Database for Acoustic Research

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This paper describes the different stages of creation of the CHEDAR database. It is comprised of 3D meshes generated from a morphable model of ear, head and torso and their associated diffuse-field equalised Head-Related Impulse Responses (HRIRs). Focused on the influence of ear, it provides 1253 different ear shapes, making it the largest available HRIR database so far. Moreover, 4 different evaluation grids are used for computation, with radii ranging from 20 cm to 2 m, thus allowing to study near field as well as far field. The frequency range of the corresponding HRTFs goes from 100 Hz to 16 kHz by 100 Hz steps. The HRIRs are provided as .sofa files. The entire database, the largest so far, and unique by the type of gathered data, the number of entries and their resolutions is publicly available for academic purposes.

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AES - Audio Engineering Society