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Dolby® Digital Plus extends the capabilities of Dolby Digital technology, optimizing sound quality and efficiency for a richer, cinematic audio experience.

Scalable and extensible, optimizes audio quality and efficiency for available bandwidth

Supports a wide range of existing and emerging home theater, broadcast, online, and mobile applications

Provides up to 7.1 channels of cinematic surround sound for a more involving experience and dramatic special effects

Enables compatibility with millions of existing home theater systems via simple conversion to Dolby Digital

Dolby Digital Plus is a versatile, scalable digital audio coding technology that extends the capabilities of Dolby Digital. It delivers up to 7.1 channels of cinematic surround sound and supports a wide range of bit rates that ensure optimized sound quality and efficiency to match available bandwidth. It also enables advanced applications such as multiple program support and audio stream mixing.

These advances are just a few reasons why Dolby Digital Plus delivers a more enveloping audio experience for existing and emerging applications, including new digital broadcast TV formats, Internet-delivered audio, and high-definition video discs.

Why Dolby

Dolby Digital Plus is set to revolutionize the audio experience and quality in mobile devices. It provides, for the first time, a true multichannel solution for delivering high-definition movie or concert content. Your customers can download, store, and play premium home theater quality entertainment on their phones anywhere they go.
Dolby Digital Plus also enables an entirely new use case. When connected to a home theater via HDMI™, a phone with Dolby Digital Plus can deliver a discrete 5.1-channel surround sound experience. Quality is similar to that of a Blu-ray Disc™. Dolby Digital Plus also ensures compatibility with Hollywood content recorded with Dolby Digital.

For the most advanced sound possible in a mobile phone, Dolby Digital Plus is a must. It delivers an uncompromised entertainment experience and integrates easily into today’s high-performance mobile devices. 

Dolby Digital Plus Mobile Specifications

Channels: 1.0 to 7.1, discrete

Data rate: 32 kbps–6 Mbps, scalable; typical range on HD optical discs is 768 kbps–1.5 Mbps

Supports Dolby metadata: Yes

Connections: HDMI, IEEE 1394

Mixing/streaming capabilities: Yes

Backward compatibility: Yes; S/PDIF to legacy A/V receivers (640 kbps data rate)

Connector Signal Types: Signal:
Line output Two-, six-, eight-channel analog
S/PDIF Two-channel PCM, Dolby Digital
HDMI 1.1/HDMI 1.2 Two-, six-, eight-channel PCM, Dolby Digital
HDMI 1.3 Two-, six-, eight-channel PCM, Dolby Digital, Dolby Digital Plus, Dolby TrueHD bitstreams


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