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Audio information
Audio decoding format
Dolby Atmos
Introduced first in the cinema, Dolby Atmos brings a revolutionary sense of dimension and immersion to the
Home Theater experience. Dolby Atmos is an adaptable and scalable object based format that reproduces
audio as independent sounds (or objects) that can be accurately positioned and move dynamically
throughout the 3 dimensional listening space during playback. A key ingredient of Dolby Atmos is the
introduction of a height plane of sound above the listener.
Dolby Atmos Stream
Dolby Atmos content will be delivered to your Dolby Atmos enabled AV receiver via Dolby Digital Plus or
Dolby TrueHD on Blu-ray Disc, downloadable files and streaming media. A Dolby Atmos stream contains
special metadata that describes the positioning of sounds within the room. This object audio data is
decoded by a Dolby Atmos AV receiver and scaled for optimum playback through Home Theater speaker
systems of every size and configuration.
Dolby Digital
Dolby Digital is a compressed digital audio format developed by Dolby Laboratories, Inc. that supports
5.1-channel audio. This technology is used for audio on most DVD discs.
Dolby Digital EX
Dolby Digital EX creates total 6.1-channel audio from 5.1-channel sources that are recorded with Dolby
Digital Surround EX. This decoder adds a surround back sound to the original 5.1-channel sound.
Dolby Digital Plus
Dolby Digital Plus is a compressed digital audio format developed by Dolby Laboratories, Inc. that supports
7.1-channel audio. Dolby Digital Plus remains fully compatible with the existing multichannel audio systems
that support Dolby Digital. This technology is used for audio on BD (Blu-ray discs).
Dolby Enabled Speaker
A convenient alternative to speakers built into the ceiling, products utilizing Dolby speaker technology
employ the ceiling above you as a reflective surface for reproducing audio in the height plane above the
listener. Dolby enabled speakers feature a unique upward firing driver and special signal processing that
can be built into a conventional speaker, or a standalone speaker module, minimally impacting the overall
speaker system footprint while providing an immersive listening experience during Dolby Atmos and Dolby
surround playback.
Dolby Pro Logic II
Dolby Pro Logic II enables 5-channel playback from 2-channel sources. There are three modes available:
“Music mode” for music sources, “Movie mode” for movie sources, and “Game mode” for game sources.
Dolby Pro Logic IIx
Dolby Pro Logic IIx enables 7-channel playback from 2-channel or multichannel sources. There are three
modes available: “Music mode” for music sources, “Movie mode” for movie sources and “Game mode” for
game sources (for 2-channel sources only).
Dolby Surround
Dolby surround is a next generation surround technology that intelligently up mixes stereo; 5.1 and 7.1
content for playback through your surround speaker system. Dolby surround is compatible with traditional
speaker layouts, as well as Dolby Atmos enabled playback systems that employ in-ceiling speakers or
products with Dolby speaker technology.
Dolby TrueHD
Dolby TrueHD is an advanced lossless audio format developed by Dolby Laboratories, Inc. to offer a
high-definition home theater experience with the quality of the studio master. Dolby TrueHD can carry up to
eight channels of 96 kHz/24-bit audio (up to six channels of 192 kHz/24-bit audio) simultaneously. This
technology is used for audio on BD (Blu-ray discs).
DSD (Direct Stream Digital)
DSD (Direct Stream Digital) technology stores audio signals on digital storage media, such as SACD (Super
Audio CDs). The signals are stored at a high-frequency sampling rate (such as 2.8224 MHz and 5.6448
MHz). The highest frequency response is equal to or higher than 100 kHz, with a dynamic range of 120 dB.
This technology offers better audio quality than that used for CDs.
DTS 96/24
DTS 96/24 is a compressed digital audio format that supports 5.1-channel and 96 kHz/24-bit audio. This
format remains fully compatible with the existing multichannel audio systems that support DTS Digital
Surround. This technology is used for music DVDs, etc.
DTS Digital Surround
DTS Digital Surround is a compressed digital audio format developed by DTS, Inc. that supports
5.1-channel audio. This technology is used for audio on most DVD discs.
DTS-ES
DTS-ES creates total 6.1-channel audio from 5.1-channel sources that are recorded with DTS-ES. This
decoder adds a surround back sound to the original 5.1-channel sound. In the DTS-ES Matrix 6.1 format, a
surround back sound is recorded in the surround channels, and in the DTS-ES Discrete 6.1 format, a
discrete surround back channel is recorded.
DTS Express
DTS Express is a compressed digital audio format that supports 5.1-channel audio and allows a higher
compression rate than the DTS Digital Surround format developed by DTS, Inc. This technology is
developed for audio streaming services on the Internet and secondary audio on BD (Blu-ray discs).
Glossary
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