Broadcast live video recorder

The Viz Video Engine is a cost-effective broadcast live video recorder for SDI acquisition. The recorder is controlled and managed by our Media Asset Management system, Viz One.

Key Features

  • Four channels of selectable HD or SD recording per 1U chassis
  • Enables SDI acquisition in Viz One
  • Fail-safe reliability provided by redundant RAID storage, power supplies, and network ports
  • Cost-effective and easy to implement
 

A single engine handles four channels, each capable of recording files from an extensive selection of HD and SD broadcast video formats. All video is wrapped in the MXF format, stored locally and made accessible through an FTP interface. Files are automatically moved and transcoded to centrally managed storage by Viz One. This means assets can be searched, previewed and edited from Viz One – even while recording is still ongoing. Once recording completes Viz One automatically deletes unwanted media.

Feed Acquisition

For feed acquisition, the recorder is controlled by our feed scheduler, Viz Dart.  An operator makes a booking for recording of a particular source feed and enriches it with metadata, using Viz Dart’s scheduling client. Viz Dart monitors the schedule, controls the recording and notifies Viz One of the new asset. Once notified, files are automatically moved and transcoded to centrally managed storage by Viz One. This enables searching, previewing and editing of the feed from within Viz One within a few seconds of feed acquisition starting, and while it is still ongoing.

Tape Ingest

For tape ingest, the recorder is controlled by our capture utility in Viz One. The tool opens as a desktop client that can control most standard types of VTRs. The ingest operator specifies the required in and out points, adds metadata and starts the recording. For efficiency, a list of clips can be ordered as a single batch job. Both VTR and recorder are controlled by the utility, which also notifies Viz One about the new asset. At notification, files are automatically moved and transcoded to centrally managed storage by Viz One. This enables searching, previewing and editing of the tape in Viz One within a few seconds of tape ingest starting, and while it is still ongoing.

Viz Video Engine Tech Specs

Key Features

  • Four video channels of selectable HD or SD recording**
  • Compact 1U rack-mountable chassis
  • Broad video, audio and data compatibility
  • 6TB useable RAID storage
  • Supports MXF-Op1a format
  • FTP interface for easy file-based media exchange
  • Hardware redundancy for fail-safe reliability
  • Video channels can also be used for clip playback

Video

HD Video (MXF OP1a)

  • AVC-Intra 50 / AVC-Intra 100
  • DVCPRO HD / DVCPRO 100
  • XDCAM HD422 50

SD Video (MXF OP1a)

  • DV 25 / DVCPRO 25 / DVCPRO 50
  • IMX 30 / IMX 50

Audio

  • 16 / 24 bit PCM audio @ 48 KHz

Data

  • EIA-608 / EIA-708 Closed Captioning
  • VBI / VANC Ancillary

 

Workflow diagram

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