Department of Speech, Language and Hearing Sciences, 2501 Kittredge Loop Road 409 UCB, University of Colorado, Boulder, Colorado 80309, USA.
Center for Applied and Translational Sensory Science, University of Minnesota, Minneapolis, Minnesota 55455,
J Acoust Soc Am. 2020 Nov;148(5):EL408. doi: 10.1121/10.0002489.
Room acoustics models are often used in auditory research. The simplest implementations of these models ignore air absorption, and this lack can affect the room response, especially at high frequencies and for large simulated spaces. This letter proposes a method for adding air absorption to a simulated room impulse response calculated without air absorption. The procedure creates a time-varying lowpass filter that approximates air absorption as a function of distance. The existing absorption-free room response is passed through the filter to create a new response that incorporates air absorption effects.
房间声学模型常用于听觉研究。这些模型最简单的实现忽略了空气吸收，这种缺失会影响房间响应，尤其是在高频和大模拟空间中。本文提出了一种向未考虑空气吸收的模拟房间脉冲响应中添加空气吸收的方法。该过程创建一个时变低通滤波器，该滤波器将距离作为函数来近似空气吸收。将现有的无吸收房间响应通过滤波器，创建一个新的响应，其中包含空气吸收效果。
