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. The Sound of HDTVBased on core Dolby® Digital technologies, the established standard for cinema, broadcast, and home theater surround sound. Full Interactive Support for Blu-ray BonusView and BD-LiveGet the interactive BonusView™ and BD-Live™ features on ™, like director's commentary, alternate dialogue, or alternative language soundtracks. Premium Mobile ListeningAdds depth and power for clear, realistic sound through headphones and speakers using Dolby Audio, and provides faster downloads as well. Dolby Digital Plus: Consistent Quality on Every DeviceEnjoy vibrant, high-quality surround sound from all your favorite content with Dolby Digital Plus™. Whether you're watching movies, TV shows, online videos, or concerts, Dolby Digital Plus ensures that you always get consistent audio quality.

The TechnologyDolby Digital Plus is an audio technology based on Dolby Digital 5.1, the established standard for cinema, broadcast, and home theater surround sound. It's part of a complete ecosystem that includes content creation, program distribution, device manufacture, and customer experience. How It WorksBased on both psychoacoustic and cognitive models of audio perception, Dolby Digital Plus delivers HD-quality audio for streaming, on-demand, and downloaded content by using some of our most advanced algorithms. Dolby Digital Plus makes it possible to store and transmit high-quality digital sound to deliver the best audio quality possible on many different kinds of devices. Compatibility with Current EquipmentEquipment with Dolby Digital Plus will unlock its full feature set, including 5.1- and 7.1-channel capability (depending on the program).If your system includes only Dolby Digital, you'll still get 5.1-channel surround sound, with the highest-quality Dolby Digital signal possible—Dolby Digital Plus content is easily converted to a traditional Dolby Digital signal. Dolby Digital Plus Products and ContentYou can get the Dolby Digital Plus experience by purchasing home theater equipment, such as A/V receivers, Blu-ray™ players, or TVs with Dolby Digital Plus. It's available on PCs, tablets like the, and on.

Dolby Digital Plus is also a core format for, built into Windows 10 and the new Microsoft Edge browser, available on and the Surface™.Look for content encoded with Dolby Digital Plus on and on streaming platforms such as Netflix, Vudu, or Amazon Fire TV. Compare Dolby Digital Plus to Other TechnologiesDolby Digital Plus is one of many technologies that deliver surround sound. But how does it compare to other technologies?Dolby Digital Plus is the established standard for 5.1-channel surround sound on DVDs and HD broadcasts. It's part of the Blu-ray Disc standard, so you can experience the clearest multichannel surround sound from your entertainment. And it's built into Windows 10, giving you crisp, clear sound from Windows apps and through the Microsoft Edge browser. Disc Authoring ToolsDolby Media Producer software delivers cost-effective, professional audio encoding for Blu-ray and DVD. The complete suite includes a full range of applications for complete authoring control.

BonusView and BD-LiveTake full advantage of interactive features on Blu-ray: you can use the low-bit-rate mode of Dolby Digital Plus to add as many as 5.1 channels of extra material such as director's commentary or alternative language tracks. Legacy CompatibilityDolby Digital Plus supports all Dolby Digital metadata, so consumers with legacy equipment will enjoy the same quality surround sound they've always had. PostproductionSoundtracks for premium programming are likely already in 5.1-channel surround sound. Available tools will let you monitor your mix for various playback scenarios and help ensure you meet delivery specifications. Legacy CompatibilityWhen the Dolby Digital Plus bitstream finds a Dolby Digital decoder at the receiving end, it automatically generates a 5.1-channel Dolby Digital signal at 640 kbps. Consumers with legacy equipment will enjoy the same quality surround sound they've always had.

Create Just One VersionDolby Digital Plus is the only delivery format that can use the same stream for delivery to TVs, set-top boxes, and mobile devices. Ideal Companion for Video CodecsAdvanced compression algorithms allow delivery of discrete 5.1-channel surround sound at 192 kbps, half the data rate typically used. And 7.1 channels can be delivered at data rates as low as 384 kbps. Worldwide AdoptionDolby Digital Plus is part of broadcast standards worldwide, including DVB™/ETSI, DECE, ATSC, and DLNA®. Create Just One VersionDolby Digital Plus is the only delivery format that can use the same stream for delivery to TVs, set-top boxes, and mobile devices. Maximizes Device PerformanceDolby Digital Plus for mobile devices includes extensive postprocessing that compensates for the limitations of the built-in speakers.

It dramatically improves the sound consumers hear on their mobile devices. Seamless Ad InsertionScalability and seamless channel and bit-rate switching allow ad materials to be inserted into the bitstream while maintaining loudness consistency.

DTS (Dedicated to Sound) is a digital sound coding standard created by Universal Pictures. Compared with the Dolby Digital standard, DTS uses four times less compression and digitizes sound at 20 bits instead of 16. Therefore, DTS's sound quality is theoretically higher, at the cost of a higher bit rate. To be able to play DTS-encoded media, you need a certified DTS decoder.

Types of DTS

DTS falls into four different categories. The first is DTS 6, the most commonly used 5.1 standard, which can encode six-channel sound with less compression than the Dolby Digital standard. The first five channels are used for the satellite speakers, while the last is reserved for the subwoofer. These devices are normally identified by the presence of this logo:
The second is DTS ES (Digital Theater Sound Extended Surround), a 6.1 standard that uses an additional rear channel (rear central). DTS ES uses less compression than Dolby Digital EX:
DTS ES standard has two variants: DTS ES Matrix, which has a seventh channel interpolated with the primary channels called 'virtualization'. and DTS ES Discrete, which has an seventh independent channel.
The third category is DTS 24/96, which represents an audio format used for storing high-definition music with several channels. This format is primarily used in DVD Audio or audio tracks that accompany video DVDs. The name comes from the fact that the tracks are recorded in 24 bits at 96 kHz. It may be in either stereo or 5.1:
The final category is DTS Neo:6, a format for upmixing (or virtualizing) from a stereo sound source:
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