Eyeheight’s LE-2M legalisers are employed during the 2018 Wimbledon Tennis Championships for the monitoring of video and audio signals.

Eyeheight’s legaliser picked for 2018 Wimbledon Tennis Championships

The LE-2M video legaliser from Eyeheight is responsible for video and audio monitoring for the transmission of the annual tennis tournament

Eyeheight’s video legalising technology has been deployed at the annual Wimbledon Open tennis tournament for the BBC output via Hyperactive Broadcast, a provider of post-production and live workflow solutions for both film and TV. Held at the All England Club in south-west London, this year’s tournament is being transmitted to audiences worldwide from June 25 through to July 15.

The installation of Eyeheight’s LE-2M allows operators to detect incoming SDI or HD-SDI video at 1080i/50/59.94, 720p/50/59.84, 625/50 or 525/59.94, and applies the “appropriate” legalising format. It then ensures that incoming signal video is held within user-selected colour-space parameters: RGB, YUV, composite (PAL or NTSC), or RGB-and-composite combined. Legalisation can be performed to conform with EBU-R 2003 standard SDI settings, and 7.5 IRE or 0 IRE Pedestal.

Additional features of the LE-2M legaliser include Eyeheight’s clobberRing automatic luma overshoot and undershoot suppression, together with luma and chroma gain, black-level adjustment, hue rotation, adjustable clipping levels and soft-clipping knee levels.

In the audio domain, the LE-2M-K variant provides control of perceptual loudness, and true peak level using ITU-R BS.1770 multi-channel loudness and estimation algorithms. These are coupled with correction algorithms to ensure compliance with loudness and peak-programmer level requirements. Embedded stereo or surround audio loudness can be continuously monitored, allowing system gain to be adjusted across all channels to stay within the loudness limit while preserving the audio imaging.

Martin Moore, sales director at Eyeheight, commented: “Summer sports can be quite challenging for OB camera crews, given the wide variation in light levels and the potential for bright reflections bouncing in from the public enclosure. The LE-2M chosen for this event will ensure that video content capture throughout the series conforms fully to internationally agreed signal levels.”

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