06.02.2003 12:00 PM
ABC News cleans live feeds with Snell & Wilcox pre-processors

ABC News is using the Snell & Wilcox Prefix CPP100 compression pre-processor to clean videophone signals that originate from the Middle East for its live news coverage. Mike Strein, assistant director of Technology and Strategic Planning for ABC, said a pair of the compact units are installed in the TV-3 newsroom operation center at the network’s New York headquarters.

The CPP100 features recursive, semi-transversal, median, spatial and linear filters, MPEG de-enhancement filters and optional high performance decoder for composite input. It has user selectable or MPEG specific presets, a panel lock and system bypass facility and on screen status facility.

Feeds are sent live from the Middle East via videophone, then passed through the Snell CPP100 in N.Y., where artifacts caused by the harsh conditions and transmission are reduced prior to going to air by adjusting the bit rate.

The performance of digital video compression systems such as MPEG can be significantly improved by removing unwanted components of the signal, including video noise, cross color from decoders and satellite impulse noise. The Prefix CPP100’s proprietary design incorporates seven filters to allow the unit to remove unwanted signal elements. The CPP100 also allows enhancement or reduction of high frequency signal content.

Sophisticated video analysis circuits built into the CPP100 not only provide optimum noise reduction, but also generate signals which are embedded in the auxiliary data of the SDI output for use as early warning signals by the compression encoder (for shot change, 3:2 sequence film/video identification, etc).

For more information visit www.snellwilcox.com.

Back to the top

Post New Comment
If you are already a member, or would like to receive email alerts as new comments are
made, please login or register.

Enter the code shown above:

(Note: If you cannot read the numbers in the above
image, reload the page to generate a new one.)

No Comments Found

Thursday 10:05 AM
NAB Requests Expedited Review of Spectrum Auction Lawsuit
“Broadcasters assigned to new channels following the auction could be forced to accept reductions in their coverage area and population served, with no practical remedy.” ~NAB

202 Communications /   Friday 12:41 PM
Albis Technologies Appoints New Head of Access Solutions
ignite strategic communications /   Thursday 03:48 PM
2015 HPA Tech Retreat(r) Unveils Expanded Session Schedule

Featured Articles
Discover TV Technology