【摘要】 本文讨论近年电声技术的进展，综述电声器件概况，介绍高保真立体声中的环境声和数字声频，并总结迅速发展的声场电声控制技术，最后讨论了主观电声测量方面的动态．更多还原

【Abstract】 In this paper is discussed recent progress in the electroacoustical technique, ad vances in the electroaconstlc devlces, the surround sound and digital audio in the Hi-Fi stereo, the audio control of the sound field, and finally the subjective electroacoustical measurments are surveyed.更多还原