Interpolating Head Related Transfer Functions
نویسندگان
چکیده
This paper describes the interpolation of head related transfer functions (HRTFs) for all directions. The interpolation of HRTFs enables us to reduce the number of measurements for new user’s HRTFs, and also reduce the data of HRTFs in auditory virtual systems. A linear interpolation and the spline interpolation are evaluated and the advantages of both methods are clarified. The interpolation methods are applied to HRTFs measured with two head-and-torso simulators. The objective results show that the linear interpolation is superior to the spline interpolation as the number of HRTFs used for interpolation is decreased. There is no significant difference between equally-spaced and optimal conditions for both methods. The HRTFs interpolated from 41 directions are evaluated subjectively. The subjective results show that there is no significant difference between the measured and interpolated HRTFs in azimuth and elevation.
منابع مشابه
A time domain binaural model based on spatial feature extraction for the head-related transfer function.
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