我们对于立体声已经不太生疏了。近年来,我国若干大城市都建设了宽银幕立体声电影院。在一些国家里,还试播了立体声广播,立体声唱片也已经成为商品出售,很受人们注意。谁都知道,我们生活的空间是立体的。声源通常也是立体分布的:声 We are not too familiar with stereos. In recent years, wide-screen stereo cinemas have been built in several major cities in China. In some countries, stereo broadcasting has also been piloted, and stereo recordings have also become commodities for sale, attracting much attention. Everyone knows that the space we live in is three-dimensional. Sound sources are usually stereoscopic: Sound