Estimation of Head-Related Impulse Responses from impulse responses acquired for multiple source positions in ordinary sound field

摘要

In this paper, a new method for estimation of Head-Related Impulse Responses (HRIRs) from the impulse responses acquired in ordinary sound field is proposed. Estimation of a single HRIR from the impulse response in the same sound source position acquired in the ordinary sound field was proposed, and the estimation performance was shown to be not enough in some directions [S. Takane, Proc. 127th AES Convention, Paper No. 7885(2009)]. In order to improve the estimation accuracy, the impulse responses acquired at multiple source positions are used, and the Auto Regressive (AR) coefficients of the HRIRs are assumed common for all source positions in the proposed method. The results of the example estimation of the HATS' HRIRs showed that the estimation accuracy was significantly improved compared with our previously proposed method.