电声技术研究的是电声换能以及声信号的接收、记录、加工、特殊性和测量技术,与人的主观感觉密切相关。其频率范围为可听声频段,在政治、军事、经济和文化领域内有广泛的应用。随着广播、电影、扩声、录音和声场控制的发展,70年代形成了具体相对独立性的声频工程。许多新结构、新原理、新工艺和新材料使声频 Electro-acoustic technology studies the reception, recording, processing, particularity, and measurement technology of electro-acoustic transducers and acoustic signals, and is closely related to people’s subjective feelings. Its frequency range is an audible sound band, which has wide application in the political, military, economic and cultural fields. With the development of broadcasting, film, sound reinforcement, recording, and sound field control, a relatively independent audio project was formed in the 1970s. Many new structures, new principles, new processes and new materials make audio