HEAD-RELATED (HR) FILTERS

原文（中文）

A method for producing an estimated head-related (HR) filter, ĥ′, that consists of a set of S HR filter sections ĥ′for s=1 to S. The method includes obtaining an alpha matrix (e.g., an N×K matrix), wherein the alpha matrix consists of S sections, where each one of the sections of the alpha matrix corresponds to a different one of the S HR filter sections (e.g., the first section of the alpha matrix corresponds to ĥ′, the second section of the alpha matrix corresponds to ĥ′, etc.), each section of the alpha matrix consists of N sub-vectors (N>1, e.g., N=8), and each sub-vector comprises a number of scalar values. The method further includes separately computing each one of the S HR filter sections, wherein, for at least a certain one of the S HR filter sections, ĥ′, the step of computing ĥ′comprises using not more than a predetermined number, q, of the sub-vectors within the section of the alpha matrix corresponding to ĥ′to compute ĥ′, where qis less than N.