What is the use of Dolby Sound? Please make it easy to understand.

Dolby sound effects can effectively improve sound quality. It is an additive and subtractive noise reduction method introduced by the American Dolby Company to improve audio. It is generally used in relatively high-end situations.

Dolby sound effect synthesizes four-channel stereo sound into two channels through specific encoding methods during recording, that is, the original left channel (L), right channel (R), center The four signals of channel (C) and surround channel (S) are encoded and synthesized into LT and RT composite two-channel signals. During playback, the encoded two-channel composite signals LT and RT are restored through the decoder. It is the encoded left, right, center and surround four independent signals that are independent of each other. After amplification, they are input to the left speaker, right speaker, center speaker and surround speaker respectively.

Sound effects refer to the effects created by sound. They refer to the noise or sounds added to the vocal cords to enhance the realism, atmosphere or dramatic information of a scene. The so-called sounds include musical sounds and sound effects. Including digital sound effects, environmental sound effects, MP3 sound effects (normal sound effects, professional sound effects).

Sound effects or Audio effects are artificially created or enhanced sounds used to enhance the sound processing of art or other content in movies, video games, music or other media