![]() Perceptual digital audio coding takes advantage of the fact that the human ear screens out a certain amount of sound that is perceived as noise. The use of Dolby Digital for broadcast means metadata is required in addition to audio. ![]() A lot of streaming services, such as Netflix, Disney+, Apple TV+ and Amazon Prime Video, are supporting more and more Atmos content, too. AC3 audio is a high definition audio format for theater-quality surround sound. AC-3 (Dolby Digital): AC-3, also known as Dolby Digital, is a perceptual digital audio coding technique that reduces the amount of data needed to produce high-quality sound. 5.1 surround sound requires 6 discrete audio channels. The good thing is that Dolby wants to make Atmos widespread and has licensed its technology into a lot home theater systems and soundbars, as well as headphones and TVs. So if you're watching a movie at home, the soundbar, television and the content source- be it a movie from a streaming service from Netflix or HBO Max, or a physical disc like a DVD or a Blu-ray - all have to support Dolby Atmos. AC-3 is licensed from Dolby and follows their specifications. There have been many free apps that supported AC3 and all of them (except VLC) eventually got taken down or modified to no longer include AC3. Encoding audio to AC-3 is included in Vegas+DVD. The thing to note about Dolby Atmos is that every think in the audio chain has to support it, or you won't get its immersive effect. ago Except Dolby already has removed other free video players supporting AC3 from Google Play and continues to do so. ![]() It essentially gives you the effect of feeling like you're watching a movie in the cinema, with speakers positioned all around you, even when you're not. Dolby Atmos, as stated before, is a 3D immersive technology that allows a speaker or speaker system to fool your brain into thinking that sound is coming from all around you.
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