What Is a Surround Sound Amplifier?

Dolby Surround is a surround sound technology developed by Dolby Laboratories in the early 1980s. Several programs have been developed by Dolby Stereophonic System. It is a professional system for improving the quality of stereo sound. It has been obtained in movie theaters. Extremely wide application.

Dolby Surround

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due to

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If DTS is not yet familiar to everyone, then when it comes to the movies "Jurassic Park", "Speed of Life and Death", I am afraid everyone knows it. "Jurassic Park" is the first movie with multi-channel surround effect using DTS audio coding technology.

DTS (Digital Theater System) is an all-digital research and development research and launched by DTS company in 1993

In the 1980s, in order to improve the sound playback effect of movies in movie theaters, the Lucas Film Company in the United States developed a THX sound system designed for use in powered theaters. Afterwards, in order to reproduce the perfect sound effect in the cinema in the home environment, in

English name: Cinema DSP

This is a study by Japanese Yamaha Company

3D surround sound is a system that uses the human ear's hearing characteristics and auditory psychology to process ordinary stereo signals through a certain process and obtain a true three-dimensional stereo sound field through two speakers. More commonly used 3D surround sound systems are SRS, Spatializer, APX, QSound, Virtaul Dolby, etc. The 3D surround sound system has three major advantages: firstly, there are no special requirements for the sound source, and there is no need to process the program source; secondly, the original two-channel stereo can be used, and the true surround sound effect can be enjoyed with two speakers; the third is There are no strict requirements on the environment. Its disadvantages are also obvious. The positioning accuracy and sense of space of the sound are inferior to the aforementioned sound system.