7720AD8-DD-HD | HD/SD Audio De-embedder & Dolby-E™/AC-3 Decoder & Re-embedder | Evertz | Net-AV
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HD/SD Audio De-embedder & Dolby-E™/AC-3 Decoder & Re-embedder

Model: 7720AD8-DD-HD

  • Audio de-embedder and re-embedder for 4 groups of audio
  • Dolby® E/AC-3 decoding for selected audio source
  • Dolby Metadata is embedded in HD VANC for downstream device decoding
  • 8 AES inputs for backup, voice-over or Dolby-E/AC-3 content
  • Adjustable video delay to match Dolby decoder audio delay
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The 7720AD8-DD-HD Audio De-embedder and Dolby® Decoder & Re-embedder extracts embedded audio from 4 specified groups as defined by SMPTE ST 299-1 from a 1.5Gb/s serial HDTV or as defined by SMPTE ST 272 from a 270Mb/s serial SDTV video signal. One selected channel is processed by the on-card Dolby Decoder. If the channel contains Dolby-E or Dolby Digital (AC-3), it will yield up to 8 additional discrete audio channels, 2 channels of stereo downmix and the associated Dolby-E metadata. Up to 16 selected channels may be optionally delayed up to 1.2 seconds and re-embedded into the output video and/or directed to AES outputs. Video output may be optionally delayed to help with lip sync. If PCM audio is embedded, the device acts as a simple 4 group audio de-embedder. 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.). Metadata can be monitored using VistaLINK® and dial norm parameters can be modified. For lip sync cohesion and ease of editing, Dolby-E data is organized in blocks with lengths matching the associated video frame. The decoder will match the beginning of each output block with the start of video, as provided with the genlock input. Additional delay can be dialed up by the user, up to 1.2 sec. The 8 AES inputs can be configured as a backup, in the event the primary is lost, or as a voice-over source. VistaLINK® enables control and configuration capabilities via Simple Network Management Protocol (SNMP). This offers the flexibility to manage the module status monitoring and configuration from SNMP enabled control systems such as Evertz VistaLINK® PRO locally or remotely.
  • Audio de-embedder and re-embedder for 4 groups of audio
  • Dolby® E/AC-3 decoding for selected audio source
  • Dolby Metadata is embedded in HD VANC for downstream device decoding
  • 8 AES inputs for backup, voice-over or Dolby-E/AC-3 content
  • Adjustable video delay to match Dolby decoder audio delay
  • Automatic switchover to backup audio source on loss of selected Dolby stream
  • Headphone jack for monitoring stereo down-mix or any input source
  • Two full audio mixers with 16 output channels
  • Card edge display
  • VistaLINK® capable for remote monitoring and control via SNMP (using VistaLINK® PRO) when installed in 7800FRframe with a 7700FC VistaLINK® Frame Controller
  • Program input supporting both HD (1.5Gb/s) and SD (270Mb/s)
  • Reference input supporting NTSCM, PAL-B and tri-level for meta data phasing
  • 8 AES inputs for backup/voice-over source
  • Metadata input
  • 2 processed HD outputs (1 protected with bypass relay)
  • 8 AES de-embedded and processed outputs
  • 1 DB-9 Dolby metadata (RS-422/485) on same connector as input
  • Module Status
  • Video Signal presence
  • Selected audio group presence
  • Dolby decoder processing status
  • Genlock health/compatibility
  • AES signal presence
 
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