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HD/SD-SDI Audio Embedder & Dolby E® Encoder

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The 7721AE8-DEE-HD Audio Embedder & Dolby-E® Encoder inserts 8 AES inputs as 4 embedded audio groups into a 1.5Gb/s HD or a 270Mb/s SD video signal as specified by SMPTE ST 299-1 or ST 272 respectively.

Eight channels can be processed by the on-card Dolby Encoder. The encoder will transform the 8 discrete channels into 2 channels containing Dolby-E® and the associated Dolby-E® metadata. The 2 channels of Dolby-E® can be embedded into the video output or output to an AES. This device also handles the Dolby-E® Metadata.

Metadata is optionally embedded in VANC and can be provided as an output for downstream devices (i.e. Dolby Encoders, Multichannel Audio Tool, etc.).

Up to 16 selected channels may be optionally delayed up to 1.2 seconds and embedded into the output video and/or directed to AES outputs. Video output may be optionally delayed to help with lip sync. For lip sync cohesion and ease of editing, Dolby-E® data is organized in blocks with lengths matching the associated video frame. The encoder will match the beginning of each output block with the start of video, as provided with the genlock input. Up to 1.2 seconds of additional delay can be dialed up by the user.

IntelliGain® Audio and Loudness Processor

  • Consistent audio loudness levels within a channel and/or program
  • Automatic detection and level adjust for loud commercials
  • Gain control within a program interval to preserve audio dynamic range
  • Artifact-free transitions between program and commercials
  • Elimination of drastic volume changes during commercials and interstitials


  • Dolby-E® encoding modes available: 5.1+2, 5.1+2x1, 2x4, 4+2x2, 4+2+2x1, 4+4x1, 4x2, 3x2+2x1, 2x2+4x2, 2x2+4x1, 2+6x1, 8x1, 5.1, 5+2, 5+2x1, 3x2, 2x2+2x1, 2+4x1, 6x1, 4, 2x2, 2+2x1, 4x1, 7.1, and 7.1 screen
  • Dolby-E® encoding frame rates of 23.98, 24, 25, 29.97 and 30 frame/sec
  • External color-black reference not required for Dolby-E® encoding
  • Video reference input is still provided and is compatible with bi-level and tri-level syncs
  • Adjustable video delay to match Dolby encoder audio delay
  • Dolby metadata is sourced from VANC or external RS-422 port (metadata authoring will be available in future releases)
  • Dolby metadata monitoring and processing (dial norm adjustment) of any metadata input
  • Optional professional upmix with +UMX
  • 8 AES inputs as well as 4 group de-embedder
  • Two audio mixers, one for AES/embedded audio, another for Dolby-E® encoding
  • Headphone jack (on card edge) for monitoring any input source
  • Card edge display
  • Card edge LEDs for module status, video signal presence, selected audio group presence, Dolby Decoder status, Video Reference health/compatibility and AES signal presence
  • VistaLINK® capable for remote monitoring, control and configuration capabilities via SNMP; using VistaLINK® PRO, CP-2116E or CP-2232E Control Panels. VistaLINK® is available when modules are used with the 3RU 7800FR frame and a 7800FC VistaLINK® Frame Controller module in slot 1 of the frame


Serial Video Input

Standard SMPTE ST 292-1, (1080i/60, 1080i/59.94, 1080i/50, 1080p/30(sF), 1080p/29.97(sF), 1080p/25(sF), 1080p/24(sF), 1080p/23.98(sF), 720p/50, 720p/60, 720p/59.94, 1035i/60, 1035i/59.94)
SMPTE ST 259-C (270Mb/s) 525 or 625 line component
Connector BNC per IEC 61169-8 Annex A
HD 115m @ 1.5Gb/s with Belden 1694A
SD 300m @ 270MB/s with Belden 1694A

Processed Serial Video Output

Standard Same as input or user controlled
Number of Outputs 2
Connector BNC per IEC 61169-8 Annex A
Signal Level 800mV nominal
DC Offset 0V ±0.5V
Rise and Fall Time Per standard
Overshoot < 10% of amplitude
Wide Band Jitter
HD < 0.16UI
SD < 0.10UI

Metadata Input/Output

Type Dolby E® Metadata SMPTE ST 2020
Connector Female DB-9
Baud Rate 115,200 baud
VANC Embedding SMPTE ST 2020

AES Audio Input

Standard SMPTE ST 276
Number of Inputs 8 unbalanced
Connector Female High Density DB-15 (breakout cable to BNC provided)
Input Level 0.1 to 2.5V p-p (5V p-p tolerant)
Input Impedance 75Ω
Return Loss > 25dB, 100kHz to 6MHz
Equalization Automatic to 1000m with Belden 1694a (or equivalent) @ 48kHz AES signal
Sample Rate 48kHz ±100ppm

AES Audio Output

Standard SMPTE ST 276, single ended AES
Number of Outputs 8 unbalanced
Connector Female High Density DB-15 (breakout cable to BNC provided)
Sample Rate 48kHz
Impedance 75Ω
Resolution Up to 24-bit

Genlock Input

Type NTSC, PAL, black or any tri-level, all autodetect
Number of Inputs 1
Connector BNC per IEC 61169-8 Annex A
Impedance Hi-Z or 75Ω (jumper configurable)
Return Loss > 40dB to 10MHz


Voltage +12V DC
Power 21 watts
EMI/RFI Complies with FCC Part 15 Class A, EU EMC Directive


Number of Slots 2

Ordering Information

Notes Requires 7700FC for full module control
7721AE8-DEE-HD HD/SD Audio Embedder & Dolby E® Encoder & Re-embedder

Ordering Options

Notes Rear plate must be specified at time of order - eg: [model]+3RU
+UMX Professional 2-channel Stereo to 5.1 Multi-channel Surround Sound Upmix
+IG IntelliGain Loudness Processor
Rear Plate Suffix
+3RU 3RU rear plate for use with 350FR, 7700FR-C, 7800FR or 7801FR Multiframes


350FR Portable Multiframe which holds 7 single slot modules
7700FR-C 3RU Multiframe which holds 15 single slot modules
7800FR 3RU Multiframe which holds 15 single slot modules
7801FR 1RU Multiframe which holds up to 4 single slot or 2 dual slot modules


7800FC VistaLINK® Frame Controller
CP-2116E-H Remote Control Panel
CP-2232E Remote Control Panel
WPAES8-BNCM-6F 6' BNC cable (included)