20
The File RDelivery
Quality Control
In a significant shift from current practice, the broadcasters will stop performing a full technical quality check when receiving programmes. This responsibility for final QC is being pushed back on production companies, and in turn to post-production facilities. Apart from a beginning-middle-end spot-check, the broadcasters will rely on a certificate of technical compliance supplied along with the programme. It’s a bold move that is enabled by the use of Automated QC (AQC) software to ensure
that programme files are compatible and compliant. As well as all the necessary checks on the file structure and video content, AQC devices will check loudness, maximum true peak level and audio phase, along with a whole range of other audio parameters.
The difficulties of amending programme file masters once they have been encoded, means that it is sensible to perform QC as close to the craft suite as possible, so you can easily make
evolution Neil Hatton delves into AS-11 and the DPP’s content delivery guidelines.
2014 WILL BE VIEWED AS A YEAR OF HUGE REVOLUTION IN POST-PRODUCTION. BY OCTOBER 1ST, THE BROADCASTERS OF THE DIGITAL PRODUCTION PARTNERSHIP (DPP) WILL BE EXPECTING PROGRAMMES TO BE DELIVERED AS AS-11 FILES RATHER THAN ON TAPES. THEY WANT THEM TO BE QUALITY CHECKED AND TECHNICALLY CERTIFIED BY AN AUTOMATED DEVICE BEFORE THEY ARE SENT. THE PREFERRED METHOD OF DELIVERY WILL BE OVER AN IP NETWORK RATHER THAN SENDING A TAPE BY COURIER. IN ADDITION THE AUDIO WILL BE NORMALISED FOR LOUDNESS RATHER THAN PEAK LEVEL BY USING EBU R128. THAT’S QUITE SOME AGENDA FOR CHANGE WITHIN ONE YEAR!
Moving to files and eliminating videotape allows some significant advances in business processes as you get rid of the need for manual handling and real time processes. Files are also less vulnerable to format obsolescence; a big problem for videotape. VTRs are expensive in both capital and maintenance costs. File-based production can take advantage of cheaper commodity IT hardware and outsourced cloud-services such as QC, transcode and storage, assuming that you can afford the bandwidth to get these huge files there. A one hour AS-11 file weighs-in at close to 50 gigabytes.
hhb.co.uk
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