• Dolby Multichannel Audio Decoder DP564

    The Dolby DP564 is a multichannel Dolby Digital audio reference decoder for DTV broadcast, postproduction, DVD authoring, and game development. It supports Dolby Digital, Dolby Digital Surround EX, Dolby Pro Logic, Dolby Pro Logic II, and regular two-channel PCM soundtracks.

    Dolby no longer manufactures this product but will continue to support it as per warranty. Check our list of partner products for more options.

    Ensure the Highest-Quality Audio

    Critical monitoring of your signal is essential to ensure that the highest-quality audio reaches your listeners. As our reference Dolby® Digital decoder, the Dolby Multichannel Audio Decoder DP564 is the ideal monitoring tool for all quality-control applications.

    Control Flexibility

    The Dolby DP564 provides easy selection and monitoring of Dolby Digital's unique downmixing capabilities, listening modes, and compression modes. This gives you an accurate way to verify how material originally produced and transmitted in 5.1 will sound when played back through Dolby Pro Logic® or Dolby Pro Logic II, two-channel stereo, or mono home systems.

    Monitor Surround Mixes with Standard Headphones

    Built-in Dolby Headphone processing, with a dedicated volume control, allows you to monitor surround sound over standard headphones. The Dolby DP564 provides a comprehensive set of functions such as test noise, speaker trims and delays, bass redirection, mutes, and solos for the configuration and control of multichannel monitoring environments.

    Remote Control for Dolby DP564

    The Dolby GPI/O Controller CAT549 provides basic remote-control functions for the Dolby Multichannel Audio Decoder DP564 and Dolby Multichannel Audio Tool DP570. 

    It extends the processor's basic front-panel functions and controls from the rack to the user and provides basic remote-control functions including volume, mute, and dim, as well as 12 user-assignable tasks. Its removable cover permits console monitoring.

    Broadcast Industry

    Look to Dolby for the comprehensive tools, content services, and solutions you need to create, distribute, and deliver the highest-quality audio and imaging content.

    DP564 Benefits

    • Complete Dolby Digital Monitoring Functions

      Select and monitor all Dolby Digital downmixing capabilities and listening and compression modes.

    • Multifunction Front Panel Display

      View status indications and setup operations.

    • Built-in Dolby Headphone Processing

      Monitor multichannel mixes with standard stereo headphones.

    Dolby DP654 Front Panel

    • Multifunction Display

      For status indication and setup operations

    • Keypad

      Access to all Dolby downmix, decode, listening, and compression modes and user-assignable presets; input and monitoring selection

    • Volume Controls

      Master and headphone levels

    • Headphone Output

      6.35 mm (1/4-inch) standard stereo headphone jack, user-selectable: Dolby Headphone or Stereo modes, +7 dBu maximum output into 50Ω nominal

    • RS-232 Serial Remote Port

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

    Dolby DP564 Rear Panel

    • Digital Audio Inputs

      Three total: two BNC female connectors, unbalanced, 75Ω, signal levels per AES-3id-1995 (SMPTE 276M); one fiber-optic via Toslink™ connector

    • AES Reference Input

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

    • Digital Audio Outputs

      Four BNC female connectors, unbalanced, 75Ω, signal levels per AES-3id-1995 (SMPTE 276M)

    • Analog Audio Outputs

      0 dBFS = +24 dBu; balanced floating; eight 3-pin XLR male connectors, 24-bit DAC

    • Linear Timecode Output Port

      One SMPTE 12M-1995, BNC female, unbalanced, nominal output signal 1 Vp–p, output impedance 50Ω

    • RS-485 Serial Remote Control Input/Output Port

      9-pin female D-connector for remote control and software upgrades

    • General Purpose Input/Output Port

      37-pin female D-connector, TTL compatible, may be configured to be level or edge sensitive using either polarity; supports Dolby GPI/O Controller CAT549

    • Ethernet Port

      RJ-45 female connector, 10/100 Base-T with autodetection

    Dolby DP564 Specifications

    Audio Coding Algorithms

    • Dolby Digital
    • Dolby Digital Surround EX
    • Dolby Pro Logic II
    • Dolby Pro Logic
    • Dolby Headphone

    Downmix Modes

    • Lt/Rt, Stereo, Mono

    Listening Modes

    • Full, 3 Stereo, Phantom

    Compression Modes

    • Line, RF, and Custom modes with adjustable parameters

    Audio Input Sampling Rates

    • 32, 44.1, 48, 88.2, and 96 kHz

    Audio Output Sampling Rates

    • 32, 44.1, and 48 kHz

    Frequency Response

    • Digital outputs: 20 Hz to 20 kHz, ±0.01 dB
    • Analog outputs: 20 Hz to 20 kHz, ±0.5 dB


    • <0.02%, 20 Hz to 10 kHz

    Dynamic Range

    • >106 dB

    Channel Trim Level Adjust

    • +6 to –20 dB in 0.125 dB steps


    • 100 dB at 1 kHz

    Test Noise

    • Auto: Sequences wideband or band-limited pink noise through enabled channels at 2-second intervals
    • Manual: Feeds continuous noise to selected channel when unit is in trim level mode

    Power Requirements

    • 90–264 VAC, 50–60 Hz, auto-sensing, 40 W maximum; designed to operate from a centrally switched power source

    Dimensions and Weight

    • 2-U rackmount: 88 × 483 × 376 mm (3.5 × 19 × 14.8 inches)
    • Net: 4 kg (8.5 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.
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