Dolby Laboratories Program Optimizer DP600 Instrukcja Użytkownika Pobierz pdf (Strona 7)

Dolby DP600 Program Optimizer: Postproduction

Technical Paper

The DP600-C provides le-based encoding, decoding, and conversion between the

following audio formats.

In/Out

Dolby

Digital

Dolby

Digital Plus

Dolby

Pulse*

Dolby E PCM MPEG-1 LII

Dolby Digital √ √ √ √ √

Dolby Digital Plus √ √ √ √ √

Dolby Pulse √ √ √ √ √

Dolby E √ √ √ √ √

PCM**

√ √ √ √ √

MPEG-1 LII

√ √ √ √ √

* Includes support for all AAC formats (AAC, HE AAC, HE AAC v.2)

** PCM input to one to eight channels via WAV of AIFF

The DP600 supports preexisting metadata or generates new metadata for all Dolby

formats and PCM (via the WAV metadata chunk).

Dolby Digital to Dolby Digital Plus Transcoding

The DP600-C supports a unique, quality-preserving Dolby Digital to Dolby Digital

Plus transcoder. This provides a simple migration path for next-generation services

utilizing existing le-based content. For example, VOD les that currently include a

multichannel Dolby Digital audio elementary stream can produce a Dolby Digital Plus

audio elementary stream without the need to demux, decode, reencode, and remux

the original le-based audio stream.

Upmixing Functionality

An optional software upgrade adds the ability to adapt legacy two-channel audio

for use in 5.1-channel applications. This process engine is based on a specially

developed Dolby algorithm which is not prone to center channel build-up and creates

a wider natural-sounding sweet spot. This algorithm also ensures that subsequent

downmixing is free from artifacts typically found with other solutions.

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Dolby Laboratories Program Optimizer DP600 Instrukcja Użytkownika Strona 7