Of course, the above system does not refer to soundplay (although the pitch is also included in it), because from the eloquent more than 100 years ago from Edison to the rapid development of audio technology, the sound records and replacement of the sound and space disorders across time and space disorders It has always been the primary task to complete the audio system, so the audio system can be divided into two types: sound production (record) and replacement.

It should be said that there is also a link between the sound of sound and replacement. The spread of sound includes the sound records of sound records (such as tapes or CD records, etc.) or sending or broadcasting radio waves in broadcasting, but this is this, but this is this, but this It does not belong to the category of audio systems, because the former is not a system composed of electronic devices, and the latter is not an audio signal system.

There is another important task whether it is the production of sound or the reassembling, that is, the processing of sound, because the sound production and replacement of sound cannot mechanically reproduce the original sound, not only to eliminate the disadvantages of the original sound, but also according to a certain aesthetic aesthetic. To beautify the sound quality, and even create the original sound as needed, this is also what the audio system will bear.

There are different audio systems according to different requirements and tasks and different occasions. You can divide it from different perspectives to divide professional audio systems and home audio systems from large -scale. Professional audio systems can be divided into production systems and replacement systems. The production system has a music recording production system and film and television recording production system. No matter which production system, it can sometimes be divided into the early recording system and post -production system. Real -time or recording) system; the replacement system includes theater, stadium, venue, conference hall (room) soundplay system, song and ballroom, Disco ballroom, karaoke audio system, etc. Home audio systems can be divided into music sound release systems and AV audio system; AV sound -release systems include home theater surround systems and karaoke systems.

It should be explained that the above production and replacement systems are not absolutely available. There are also replacement functions in the production system, such as the monitoring part, and the recording production requirements and means in the replacement system. This just emphasizes the focus of the system.