Digital simulation of sound transmission in reverberant spaces (part 1)
Digital simulation of sound transmission in reverberant spaces (part 1)
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混响空间中声音传输的数字模拟（第 1 部分）
DOI：
10.1121/1.1971383
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发表时间：
1969
期刊：
影响因子：
--
通讯作者：
M. Schroeder
中科院分区：
文献类型：
--
作者：
M. Schroeder
数字计算机通过其精确模拟复杂现象的能力，使人们对混响空间中声音传播中出现的一些重要问题有了新的认识。(1)从无混响的语音或音乐信号作为输入开始，计算机可以添加具有指定延迟、频谱内容和衰减特性的回声和混响。计算机产生几个输出信号，当从消声室中的扬声器辐射时，在听众的耳朵上产生类似于真实的霍尔斯中的声压波。为了确保回声到达的“外部化”和正确方向，计算机程序基于测量的听者头部周围的声音衍射。这种数字模拟方法对于在施工前“预先审核”建筑设计和调查各种混响过程的主观相关性非常有用。(2)数字计算机已使统计仪器的频率和空间响应的模拟成为可能。
Digital computers, through their capability for accurate simulation of complex phenomena, have permitted new insights into a number of important problems arising in sound transmission in reverberant spaces. (1) Starting with reverberation‐free speech or music signals as inputs, computers can add echoes and reverberation with specified delays, spectral content, and decay characteristics. The computer produces several output signals that—when radiated from loudspeakers in an anechoic chamber—produce, at a listener's ears, sound‐pressure waves resembling those in real halls. To ensure “externalization” and proper directions of echo arrivals, the computer program is based on the measured sound diffraction around the listener's head. This digital simulation method is useful to “pre‐audit” architectural designs before construction and to investigate subjective correlates of a wide variety of reverberation processes. (2) Digital computers have made possible the simulation of frequency and space response of stati...