Dolby Atmos
Type of format | Lossless object-based audio format | |
---|---|---|
First released | 2012 | |
Developer | Dolby Laboratories | |
Compression Type | VBR | Bitrate | 18.64 Mbps |
Channels | 8 (48kHz, 96kHz), 6 (192 kHz), 4 height channels | |
Bits | 16-24 | |
Sample | 48 KHz, 96 kHz, 192 kHz | |
Filename extension | ? | |
Open Format? | No | |
Free Format? | No | |
Magic Number | ? | |
Dolby Atmos is an extension and successor of Dolby TrueHD developed by Dolby Laboratories. It is the same tech as Dolby TrueHD except it adds object-based metadata, real-time spatial sound, and additional height channels to created are more three-dimensional immersion without horizontal nor vertical limitations. It is very popular with movies and music albums. It's main competitor is DTS X.
Just like other Dolby Extensions, if a Dolby Atmos-enabled BD is played on a BD player that does not play Atmos content, it will fallback to the standard Dolby Digital (AC-3) track.
Atmos adds 4 additional height channels and is compatible with standard Dolby equipment with a 7.1 or 5.1 setup. Atmos content can support p to 24.1.10 channels. It is also possible to add Dolby Atmos with Dolby Digital Plus*.
The first movie to be released on Blu-ray with Dolby Atmos was Transformers: Age of Extinction in 2014.
Dolby Atmos studio at a media company in Hanover, Germany; you can see the height channels above. |
Regards to Video Games |
---|
Dolby Atmos has also been used for video games for PC, Xbox, and PlayStation game systems, but that variant of Atmos uses real-time interactive sounds. Dolby Atmos for Blu-ray was intended for linear audio soundtracks, not for interactive audio. If you're making a video game, but with an Dolby Atmos track, it can only be used for immersive background music, background sound effects, or a mix of both. It is unknown if the Java Xlet can control Atmos' object-based sounds, multichannel panning, and metadata in real-time. See:Dolby Atmos Documentation (for gaming) |
Footnotes
Links
- Pro.Dolby.com - Dolby Atmos
- Dolby Atmos ® for Compact Entertainment Systems: Immersive Surround Sound from a Stereo Form Factor - November 2016
- Dolby Atmos FAQs
- Dolby Atmos Documentation (for gaming)
Author(s) : Æ Firestone
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