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Dolby Digital Plus, or Enhanced AC-3 (E-AC-3), is an advanced surround sound audio codec designed specifically for evolving media. It employs exclusive compression algorithms to efficiently reduce the file size of digital audio programs. This allows easier transmission and storage. It also brings multichannel capability to bandwidth-constrained applications including mobile networks and Internet-delivered entertainment. From home theaters and PCs to mobile phones and tablets, you will get the renowned Dolby cinema experience from all your entertainment devices.

The Dolby Digital Plus Advantage

A new era in home and mobile entertainment has arrived. Consumers increasingly stream online content to their living room systems, PCs and mobile devices — and they expect the same high-quality surround sound they get from HD broadcast and packaged media. Encoding.com now supports Dolby Digital Plus technology to ensure that our customers will be ready to deliver superior quality audio to any audience.

Transcoding to Dolby Digital Plus Using Encoding.com

As always, encoding your audio using our cloud-based service offers numerous advantages including massively parallel processing, elastic capacity, proven enterprise-grade workflows and the quality assurance that comes with world-class technical focus and expertise. Using Dolby Digital Plus technology via the Encoding.com platform, you will benefit from access to an array of powerful features via the API and our other UIs including:

- HE AAC and HE AAC+ audio codecs for superior audio quality

- Dolby Digital Plus EAC3 audio codec for multi-channel audio

- Detect and repair audio features to improve content

- Audio Normalization features to control audio levels for specific mobile devices

How Does Dolby Digital Plus Stack Up?

Designed into iOS software, the built-in video player now supports adaptive bit rate switching during playback. As a user watches a video on their iPhone, iPad, or iPod device, the iOS player will detect the user's available bandwidth and automatically switch to the appropriate bit rate during playback. This process provides for a much better viewing experience: higher quality (bit rate) videos streamed for faster WiFi connections while lesser quality videos are streamed in low bandwidth situations such as is the case with AT&Ts 3G network (especially in San Francisco). And, Apple's version of adaptive bit rate streaming can be utilized by any HTTP server.

Apple calls this Apple's HTTP Live Streaming. To take advantage of this, you need to create a set of files including a master .m3u8 streaming instruction file, a .m3u8 file for each bitrate you have specified , and all the video segments (MPEG .ts) in the duration specified. The rest is Apple magic.