• Dolby E Decoder DP572

    The Dolby E Decoder DP572 decodes Dolby E–encoded program material for use in broadcast and postproduction facilities prior to final DTV and HDTV transmission.

    Dolby E Decoder DP572 Benefits

    The Dolby® E Decoder DP572 was designed to ease the transition from two-channel to multichannel audio for DTV broadcasters and program producers. It decodes up to eight channels of high-quality audio, plus Dolby Digital metadata, from a Dolby E signal encoded on a single AES3 pair, external fiber, satellite link, digital videotape, digital audiotape, or from a video server.

    It's easily integrated into your postproduction and broadcast facilities. The DP572 can accept both PCM and Dolby E signals, and it can switch automatically to provide seamless integration of multichannel and archived stereo programming.

    Multichannel programming typically uses a "5.1 + 2" Dolby E configuration, with six of the eight channels carrying a 5.1 program and the other two an Lt/Rt (matrix surround-encoded) or stereo two-channel program. Alternate channel configurations are available for multilingual or other specialized applications.

    The Dolby DP572 requires a standard video black reference signal. It can also be used in 24-frame applications when accompanied with the Dolby E Tri-Level Sync Interface DP579.

    Multichannel Audio with Dolby E

    Dolby E provides the ability to carry up to eight channels of audio with metadata over existing stereo infrastructures.

    • Coded Audio Frames that Match the Video Frames

      Ensures that audio-follow-video edits are free of mutes, glitches, or other aberrations, so you can switch, route, and perform edits directly on the digital bitstream without decoding and reencoding

    • Dolby E Audio

      Provides up to eight channels and carries Dolby Digital metadata generated by the program’s producers for final delivery to the home viewer's Dolby Digital decoder

    • PCM In/Delay Out Port

      Lets you insert a voiceover into the decoded Dolby E program or insert local stereo audio without the need for additional equipment; automates switching between stereo and multichannel programming within a transmission chain

    • Front-Panel Status LEDs

      Indicate the configuration of the Dolby source signal, as well as output channel activity, video reference, main input, PCM delay, input data, and more

    Dolby DP572 Specifications

    Audio Coding Algorithm

    • Dolby E

    Dolby E Program Configurations

    • User-selectable: 5.1; 3 × 2; 5.1 + 1 + 1; 6 × 1; 5.1 + 2; 8 × 1; 4 × 2
    • Others selectable

    Audio Sampling Rate

    • 48 kHz

    Video Frame Rates

    • 29.97 fps (NTSC); 
25 fps (PAL)
    • 23.98, 24, 30 fps (requires Dolby E Tri-Level Sync Interface DP579)

    Frequency Response

    • 20 Hz to 20 kHz, ±0.25 dB

    Distortion

    • <0.01% at 1 kHz
<0.02%, 20 Hz to 20 kHz

    Dynamic Range

    • >110 dB

    Delay

    • Encoding: fixed, one video frame PCM delay channel: fixed, one video frame PCM delay channel: fixed, one video frame or minimal delay

    Power Requirements

    • 90–264 VAC, 50–60 Hz, auto-sensing, 15 W maximum; designed to operate from a centrally switched power source

    Dimensions and Weight

    • 1-U rackmount: 44 × 483 × 324 mm (1.75 × 19 × 12.75 in.)

    • Net: 2.7 kg (5.9 lb)

    Environmental Conditions

    • Operating: 0°C–50°C (32°F–122°F), natural convection cooling; 0%–98% relative humidity (noncondensing)
    • 
Nonoperating: −20°C to 70°C (−4°F to 158°F)

    Regulatory Notices

    • North America: This unit complies with the limits for a Class A digital device pursuant to Part 15 of the FCC rules and Industry Canada ICES-003 Class A requirements. It is UL Listed for the US and Canada.

    • Europe: This unit complies with the requirements of Low Voltage Directive 73/23/EEC and EMC Directive 89/336/EEC and carries the CE marking accordingly.

    Dolby DP572 Front Panel

    Display and Controls

    • Two-line, 16-character LCD with control keys for status indication and setup operations

    Status LEDs

    • Indicate output channel activity, video reference, Dolby E program configuration, main input, PCM delay, input data (bit depth), fault, and error

    RS-232 Serial Remote Port

    • 8-pin female mini-DIN connector for remote control and software upgrades

    Headphone Output

    • 6.35 mm (1/4-in.) standard stereo headphone jack for confidence monitoring

    Dolby DP572 Rear Panel

    Digital Audio Input

    • BNC female with loop-through, unbalanced, 75Ω, signal levels per AES-3ID-1995 (SMPTE 276M) specifications, external 75Ω termination required

    Digital Audio Outputs

    • Two BNC female connectors for each output: 1/2, 3/4, 5/6, 7/8; unbalanced, 75Ω, signal levels per AES-3ID-1995 (SMPTE 276M)

    Video Reference Input

    • BNC female with loop-through, unbalanced, NTSC program or black for 29.97 fps; PAL program or black for 25 fps; Dolby Black for 24 fps; 23.98, 24, 30 fps when using a DP579 Dolby E Tri-Level Sync Interface; signal levels per SMPTE 154, external 75Ω termination required

    PCM In/Delay Out Port

    • Two BNC female, unbalanced, 75Ω, signal levels per AES-3ID-1995 (SMPTE 276M)

    Linear Timecode Output Port

    • BNC female, unbalanced, per SMPTE 12M

    RS-485 Serial Remote Input Port

    • 9-pin female D-connector for software upgrades

    Status Port

    • 9-pin female D-connector, 0–5 V TTL levels

    Auxiliary Output Port

    • 9-pin female D-connector, RS-232, full duplex

    Metadata Output Port

    • 9-pin female D-connector; compatible with metadata inputs on DP569, DP570, or DP571