Approximation of Head Related Transfer Functions
نویسندگان
چکیده
The set of Head Related Transfer Functions (HRTF) enables the generation of spatial sound [1]. Two FIR filters with 512 coefficients are required for any spatial position. This paper suggests a method for the description of HRTFs which reduces the total number of necessary coefficients for the factor 4.5 – 14 and enables the construction of new filters for nonmeasured positions. The method exploits the high cross correlation among HRTFs and high significance of Inter-Aural Time Difference (ITD) factor for space sound generation. The reduction is performed in four steps: interpolation, HRTF alignment, decimation and Principal Component Analysis (PCA).
منابع مشابه
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تاریخ انتشار 2003