Dolby DP600 Program Optimizer

Dolby Program Optimizer DP600

The Dolby® Program Optimizer DP600 is an innovative audio platform that provides a file-based workflow solution for loudness correction, audio conversion, and upmixing.

The DP600 is specifically designed for use in cable, satellite, IPTV, terrestrial TV, radio, and postproduction facilities. It includes the world’s first intelligent audio analysis and automated loudness normalization engine, along with the ability to encode, decode, convert, or transcode between the following formats:

Dolby Digital Plus, Dolby Digital, and Dolby E


Other common broadcast media file and audio formats

It also features a newly designed algorithm for upmixing legacy two-channel audio for 5.1-channel delivery.

Automated Loudness and Metadata Correction

Content producers and broadcasters can reduce loudness complaints by using the DP600 to provide viewers with a consistent audio experience across programs, channels, and networks. The DP600 expands upon the Dialogue Intelligence™ technology developed for the Dolby Broadcast Loudness Meter LM100, allowing it to:

Normalize the loudness of audio programs while preserving their original dynamic range*

Analyze the loudness of file-based audio bitstreams coded in Dolby Digital Plus, Dolby Digital, Dolby E, and HE AAC with Dolby metadata

Validate and correct the dialnorm audio metadata parameter without the need for decoding and reencoding the original audio bitstream

Provide intelligent speech-based loudness normalization for both PCM audio and MPEG-1 LII audio

* In very rare cases involving extreme loudness corrections that require gain, soft limiting will occur only during program peak levels that would exceed clipping after applying this type of loudness correction.

Audio Encoding/Decoding and Cross-Conversion

The DP600-C version of the Program Optimizer provides faster-than-real-time file-based encoding, decoding, and conversion between all of Dolby’s audio formats (Dolby Digital Plus, Dolby Digital, and Dolby E), and PCM, MPEG-1 LII, AAC, and HE AAC v2, while preserving the audio metadata.

In addition, it offers a unique, high-quality, single-step Dolby Digital to Dolby Digital Plus transcoder that preserves the metadata and minimizes tandem coding losses. This allows the audio from existing media archives to be converted to next-generation broadcast formats. The DP600 also supports Dolby Pro Logic II encoding for two-channel matrix-encoded content derived from multichannel source files.

Upmixing Functionality

Customers interested in enhancing two-channel audio for use in 5.1-channel applications can purchase an optional software upgrade that adds an intelligent file-based upmixing capability to the DP600.

This unique process is based on a newly developed Dolby algorithm that:

Creates a wider, natural sounding sweet spot

Ensures that subsequent downmixing is free from artifacts

Can be adaptively integrated into the same DP600 workflow profiles utilized for file-based loudness correction, encoding, decoding, conversion, and transcoding

Workflow Flexibility and Ease of Use

The Dolby DP600 platform:

Supports several types of applications, including archiving, automated quality control, content conversion, and media asset management.

Offers considerable potential for integration with third-party systems through an open Web services–based API.

Features a hot folder ingest process that is simple to set up and use. In this mode, users can select a specific profile, and all media files moved to the hot folder will be automatically processed based on the profile and delivered to a user-defined folder upon completion.

Why Dolby

Automated loudness analysis and correction: Provides a more consistent, reliable, and high-quality experience without the need to manually validate and correct each piece of media

Patented Dialogue Intelligence algorithm: Effective speech-based loudness normalization; automatically sets and/or corrects dialnorm values within media files

Automated file conversion and transcoding: Simplifies conversion of archives to next-generation formats

Intelligent upmixing capability: Enhances legacy two-channel content

Hot folder mode: Simplifies integration into existing workflows

Touch-screen status display: Simplifies upgrades, system provisioning, maintenance, and operation

Adaptable and extensible design: New features and supported audio formats available through simple software updates

Upgrade Options

UU/600 ($2,695)
This DP600 and DP600-C upgrade adds two-channel (including Lt/Rt matrix-encoded programs) to five- or 5.1-channel upmixing functionality.

UC/600 ($8,500)
This upgrade adds faster-than-real-time file-based encoding, decoding, conversion, and transcoding of Dolby Digital Plus, Dolby Digital, Dolby E, PCM (.wav and .aiff), MPEG-1 LII, AAC, and HE AAC v2 (.mp4 and .aac) to the DP600 base configuration.




DP600 Program Optimizer Front View Medium
DP600 Program Optimizer Rear View Medium
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DP600 Front Panel

Main Status Display
Touch-screen, 6.4-inch diagonal VGA (640 × 480 dpi)

System Status LEDs
Power, alarm, temperature, drive activity

USB 2.0 Port
Type A; for licensing software and updates

DVD Drive (Behind Main Status Panel)
For software upgrades and updates

Removable Panel
For access to hard drives

DP600 Rear Panel

Power Supplies
Dual-redundant power supplies

PS/2 Ports
Two, for keyboard and mouse

USB 2.0 Ports
Four Type A

15-Pin SVGA Port
For a local video monitor

Ethernet Ports
Two 10/100/1000Base-T with auto-detection

Media File Formats Supported

GXF (SMPTE 360M), including single programs spanned over up to five files

MXF Operational Patterns per SMPTE 390M (OP-Atom)

SMPTE 378M (OP-1a)

SMPTE 391M (OP-1b with internal essence file formats only)

MXF Container (essence) support per SMPTE 379M (GC)


SMPTE 383M (GC-DV minus support for audio essence interleaved in DV)


SMPTE 386M (IMX with D-10 audio)

MPEG-2 program stream

MPEG-2 single program transport stream

MP4 file format

Media Server Platforms Supported
Omneon® MediaDeck™, Spectrum™

Linear Audio Types Supported

WAV, including multiple mono, broadcast, and multichannel WAV files with or without a Dolby audio metadata WAV chunk, as interleaved or discrete

AIFF, including multichannel as interleaved or discrete files

16-, 20-, and 24-bit PCM (within any of the listed media file formats above)

Coded Audio Types Supported

Dolby Digital Plus (E-AC-3), Dolby Digital (AC-3), Dolby E, HE AAC with Dolby metadata, AAC, MPEG-1 LII

Additional Processing Engines Supported

Dolby Pro Logic II encoding
Proprietary two-channel to 5.1-channel upmixing

Loudness Estimation/Correction Algorithm(s)

Dialogue Intelligence, patented

Proprietary coded audio loudness correction algorithm, patent pending

ITU-R BS.1770-1 audio loudness measurement including measurement of true-peak level as per ITU-R BS.1770-2

EBU R128 audio loudness measurement

System Components
Two Dual-Core Xeon® CPUs, 2 GB system memory

Operating System

File System Protocols

Third-Party API
Provided as a Web service utilizing Simple Object Access Protocol (SOAP) over HTTP

Power Requirements
100–240 VAC, 50–60 Hz, 300 W; incorporates dual-redundant power supplies

Dimensions and Weight
3-U rackmount: 638.5 x 483 x 133 mm
Net: 18 kg (39.7 lb)

Environmental Conditions
Operating: 0°C–40°C (32°F–104°F), fan cooling, 20%–80% relative humidity (noncondensing)

Regulatory Notices
UL, FCC, CE, and RoHS compliant

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