| VidCheck - Automated
Video QC and Intelligent Automated Correction
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VidCheck
produces unique and advanced software for automated
Quality Control and checking of video and audio
in file-based media.
VidChecker
is 2nd Generation auto QC
and is faster, easier to use, and is far more
cost effective than older products. It does a
thorough check of checking file, video and audio
parameters and quality. It can also automatically
correct errors - not just 'legalization' but
Intelligent Automated Correction.
VidFixer
extends the range of corrections
and includes transcoding
VidApps
are plugins for QC and correction of video files
in NLEs such as Final Cut Pro, Avid, and Adobe
After Effects & Premiere Pro
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 Vidchecker
awarded a 'Pick Hit' by Broadcast
Engineering
at NAB 2012
VidChecker now integrated
with ContentAgent
and Amberfin iCR
New Products VidFixer
and VidApps
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 VidChecker
is for
- Broadcasters receiving file-based TV programs, shows,
films, news, commercials …
- Distributors of file-based commercials, music video,
other media …
- VoD and Cable service providers
- Post production houses
who face the challenges of checking file parameters,
and contained video and audio in many different
- Containers: MPEG-2 TS, MPEG-2 PS, MXF, MP4, MOV,
ASF, AVI, LXF, GXF, FLV, F4V, MKV
- Formats: Web, SD, HD, D-Cinema and many custom formats
- Video: MPEG-2, IMX, XDCAM, D10, HDV, DV25, DVCPro50,
DVCPro100/HD, AVC/H.264, VC-1, ProRes, DNxHD/VC-3,
MJPEG
- Audio: MPEG, PCM, AES, WAV, AAC, WMA, DV, Dolby
Digital AC-3, Dolby Digital Plus
VidChecker is simple
to install on PCs / servers. The software is optimized
to make use of recent multi-core and multi-thread CPUs
to maximise processing speed. It is fully scalable from
a single license that enables 4 files to be processed
at the same time, to 8 or 12 files simultaneously on
a single server, or spread across many servers working
together in a VidChecker Grid for
enterprise installations requiring very high throughput.
The XML based API allows it to integrated
into production workflows, with asset management and
automation systems, encoders and transcoders.
Checking AND Correction
VidChecker
not only does thorough QC checks of file, video and
audio parameters but also automatically ‘Checks
and Corrects’ video and audio to ensure
video is good to distribute and transmit. This includes
meeting new audio loudness legislation US ‘CALM’
Act and ATSC, EBU recommendations, and can automatically
write out corrected files.
 Intelligently
corrects over limit Video Levels:
- Video Luma level - including black levels
- Video Chroma - color limit errors
- Video RGB - gamut/legality problems
Video 'legalizers' simply clamp or clip peak values
that exceed the limits. This squeezes the range of picture
contrast, can produce color artefacts where the colors
become saturated and visual artefacts when the video
is re-encoded. VidCheck
has developed intelligent algorithms
(patent applied for) that dynamically analyze
the image to correct limit violations while maintaining
the integrity and quality of the picture.
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Original - overlimit highlights |
Legalizer - color artefacts |
VidChecker
correction |
Intelligently corrects over limit Audio Peak
levels and Loudness:
- Audio peak level - levels that are too high
- Audio Loudness measured to ITU-R BS.1770 and normalised
to required program loudness levels -
 makes
sure that audio levels are correct and legal
The US Commercial Advertisement Loudness Mitigation
(CALM) Act requires the Federal Communications
Commission to regulate the audio of commercials from
being broadcast at louder volumes than the program material
they accompany. This became US Federal Law in December
2010.
 The
ATSC has issued recommended practice A/85 for Audio
loudness for DTV. It recommends use of ITU-R BS.1770
for loudness measurement and techniques to control peak
levels and loudness. The EBU has issued loudness normalisation
recommendation R128.
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