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Anonymous users2024-02-07Dolby AC 3 is a compression and decompression system. It uses advanced digital compression technology, applying Dolby's original special technology, to compress and encode the six channels (channels) of completely independent left, right, center, left surround, right surround and subwoofer into two channels, which are recorded on film or disc. When **, it is restored to six channels by the decoder**.
In order to achieve wide dynamic range, high signal-to-noise ratio, high resolution, and ensure the fidelity of the signal, each channel is recorded in a completely independent way, and then compressed and encoded. For compression, Dolby Laboratories uses the basic principles of sound psychology to keep it quiet when there is no signal, and when there is an audio signal, it uses a stronger signal to mask noise in the auditory range and remove parts of the signal that are inaudible to the human ear or of similar frequency but low in volume and negligible. This greatly reduces the amount of content that needs to be processed, allowing the AC 3 to achieve high digital audio compression efficiency, while still giving a very complete and realistic feel.
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Anonymous users2024-02-06Dolby sound is the sound of the sound that meets the noise reduction standards of Dolby in the United States, and is certified by Dolby.
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Anonymous users2024-02-05Dolby Audio is a sound technology developed by Dolby Laboratories to deliver a better audio experience. The sound effects of Du Jing Chan Song mainly include the following:1
Dolby Surround Sound: Dolby Surround Sound is a multi-channel sound technology that distributes different sounds to different speakers to achieve a more realistic and three-dimensional audio effect, making listening to movies more immersive. 2.
Dolby Digital: Dolby Digital Liangzheng is an encoding technology for digital audio, which can compress audio data to make the file size smaller, while maintaining good sound guess quality, suitable for ****, digital TV, digital broadcasting and other fields. 3.
Dolby Volume Balance: Dolby Volume Balance technology can automatically adjust the volume of the audio to avoid volume jumps or large differences when watching movies or listening, providing a more balanced audio experience. In short, Dolby Audio is designed to deliver a better audio experience that allows users to hear more realistic, clear, and stereo sound.
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Anonymous users2024-02-04Categories: Entertainment & Leisure >> Movies.
Analysis: In the past, the hi-fi sound system we know has two loudspeakers on the left and right, which can make people feel a stereo sound in the left and right directions, but this is only a flat stereo sound, and cannot produce sound changes in the front and back aspects.
In order to produce stereo sound with a change in depth, two surround sound speakers are added to the rear, and through the change in the circuit, part of the signal is taken out from the left and right channels, and then released through the rear surround speakers.
Another higher level of surround sound is Dolby surround sound (also known as Dolby Stereo). This kind of surround sound is launched by Dolby Laboratories in the United States,It needs to be configured with a total of five speakers in the front left, center and right,Rear left and right,A total of four channels of information are generated,Of which the rear two speakers are just a mono signal in parallel,There is no left surround and right surround。
Dolby surround sound is called in the same sense as Dolby stereo, except that it emphasizes a sound that is different from the others. But what is Dolby Directional Logic? In fact, it is not the new Dolby stereo system, and the directional logic is for decoding technology.
Because Dolby stereo is a digital stereo sound that uses coding technology, and decoding technology uses a direction identification circuit or directional logic circuit, all sounds that use Dolby's circuit technology are called Dolby directional logic sound; Decoders with Dolby's proprietary specific decoding technology are called Dolby Pro Logic decoders.
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