立体声是由不同的声道馈给不同的SP于不同的音频信号，使每个SP发出不同的声音，使人有声音是由不同的声源从各个位置传到人耳当中的感觉，产生空间立体概念。-stereo is made up of different channels to different feed the SP in different audio signals, SP issued each different voices, the voices of the people are different from the sound source from the location of all of them reached the ears of people feeling have a concept of three-dimensional space.