Why is dolby used

Dolby Digital is a multi-channel digital audio using lossy compression. All rights reserved. Filters 0. A trademark for an electronic device that eliminates noise from recorded sound and audio signals. On the left, a well-installed Atmos home theater system with four in-ceiling height speakers. On the right For Atmos, Dolby uses a slightly different twist on the nomenclature of home systems.

Traditionally a 5. If you then added two Atmos height speakers, Dolby would describe this system as a 5. If you see "a 7. Get CNET's comprehensive coverage of home entertainment tech delivered to your inbox. In addition to the gear, you'll also need Atmos content.

That's actually pretty easy. On disc it can be found on 4K and regular Blu-ray discs. It's even in a handful of video games. Chances are if the movie is 4K, it's also Atmos -- though that doesn't mean it's in Atmos everywhere you can find that movie. It might be available with Atmos on the 4K Blu-ray, but not on Amazon, for example. Just keep in mind there won't be compatibility issues.

If you buy a movie that features Atmos it will also have an audio track your current gear can play, minus the height channels. Is it worth upgrading all your gear to take full advantage of Atmos? It's cool, but if you're not a home theater junkie this might be more money than you need to spend if you're not using it.

When you're ready to upgrade anyway, chances are the gear you're considering will have Atmos. For example, most of our favorite receivers already work with Atmos , as do several of our favorite soundbars. Originally published two years ago.

Updated with information about Atmos Music and Apple's spatial audio. Got a question for Geoff? Still have a question? Tweet at him TechWriterGeoff , then check out his travel photography on Instagram. He also thinks you should check out his best-selling sci-fi novel and its sequel. Be respectful, keep it civil and stay on topic. Then Dolby topped themselves with Dolby Atmos, which adds height channels to give sound a more three-dimensional texture, which can be implemented in theaters and at home.

Brave was the first film to premiere with this tech, with many other mediums, like TV and music, also utilizing it. The video below covers Dolby Atmos, but also quickly covers the history of Dolby and its role in cinema. Dolby Laboratories has done a lot for sound and audio technology, and their contributions to cinema cannot be understated. They changed the game in the s, but they continue to push the envelope in tremendous ways.

Now that you know how Dolby changed the way we listen to movies, why not look into how IMAX changed the way we watched them? We cover its early history, its on-going innovations, and the different ways you can experience a film in IMAX. Create robust and customizable shot lists. Upload images to make storyboards and slideshows. Previous Post. Next Post. A visual medium requires visual methods. Master the art of visual storytelling with our FREE video series on directing and filmmaking techniques.

More and more people are flocking to the small screen to find daily entertainment. Now imagine that in your own home cinema. Not possible in your current home? Not a problem — the Atmos soundbar creates the same effect without imposing architectural changes. You can also take your sound experience beyond the screen. It also features automatic volume control.