1t概述t“立体声”一词近几年来频繁地出现在各种文章和媒体中，它的含意可以概括为声源的空间分布与人们对它的判断和感受。在自然界和日常生活中，存在着各种各样的声源，例如鸟叫、打雷、汽车鸣笛、机器的噪声、演员的演唱、人们的交谈等，这些声源在空间不同的位置 In recent years, the term “stereo” has appeared frequently in various articles and media. Its meaning can be summed up as the spatial distribution of the sound source and its judgment and feeling. There are various sources of sound in nature and everyday life such as birds, thunder, car whistles, machine noise, performers’ voices, people’s conversations, etc. These sound sources are located in different places in space