Dolby Laboratories Atmos Benutzerhandbuch - Seite 15

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Figure 10: Dolby Atmos for home theaters supports as many as 24 speakers on the floor and 10 speakers

producing overhead sound.

Dolby surround upmixer

If you invest in building a Dolby Atmos home theater, you want to get full use of it, even if

the content you're playing isn't mixed in Dolby Atmos. That's where the Dolby surround

upmixer comes in.

If you choose to enable it, the Dolby surround upmixer expands the audio of legacy

channel-based content to take advantage of your entire system, including overhead or

Dolby Atmos enabled speakers. The Dolby surround upmixer employs the original

soundtrack to create a highly accurate rendering of the environment in the movie while

simultaneously honoring and maintaining the artists' intent for the mix.

Unlike previous wideband upmixing technologies, the Dolby surround upmixer operates on

multiple perceptually spaced frequency bands for a fine-grained analysis of the source

signal. The Dolby surround upmixer can individually steer frequency bands, producing

surround sound with precisely located audio elements and a spacious ambience. The Dolby

surround upmixer is included in the Dolby Atmos technology bundle and replaces the Dolby

Pro Logic II family of upmixers, offering greater flexibility and superior audio performance.