The present document reviews the mathematics behind binaural rendering of sound fields that are available as spherical harmonic expansion coefficients. This process is also known as binaural ambisonic decoding. We highlight that the details entail some amount peculiarity so that one has to be well aware of the precise definitions that are chosen for some of the involved quantities to obtain a consistent formulation. We also discuss what sets of definitions produce ambisonic signals that are compatible with the most common software tools that are available.
翻译:本文件回顾了作为球体口音扩展系数的声场的双声投影背后的数学。这一过程也称为双声音-双声调解码。我们强调,细节包含一定数量的特性,以便人们必须充分了解为某些所涉数量选择的确切定义,以便获得一致的配方。我们还讨论了哪些定义组产生与现有最常用软件工具相容的双声波信号。