An interpolation method for region-to-region acoustic transfer functions (ATFs) based on kernel ridge regression with an adaptive kernel is proposed. Most current ATF interpolation methods do not incorporate the acoustic properties for which measurements are performed. Our proposed method is based on a separate adaptation of directional weighting functions to directed and residual reverberations, which are used for adapting kernel functions. Thus, the proposed method can not only impose constraints on fundamental acoustic properties, but can also adapt to the acoustic environment. Numerical experimental results indicated that our proposed method outperforms the current methods in terms of interpolation accuracy, especially at high frequencies.

翻译：基于自适应核的核岭回归方法，提出了一种区域间声传递函数的插值方法。当前大多数声传递函数插值方法未纳入测量所依据的声学特性。本文方法基于对定向和残余混响分别自适应定向加权函数，并以此对核函数进行自适应调整。因此，所提方法不仅能对基本声学特性施加约束，还能适应声学环境。数值实验结果表明，本文方法在插值精度上优于现有方法，尤其在高频段表现更为显著。