This presentation delivered by SKY's Fraser Stirling. He explains SKY's video and audio media standards.

1. Sky Fraser StirlingTapelessMedia Standards

2. Sky Media StandardsPick a Codec any Codec There are two main concepts when considering media standards for Video and audio Accept and store a variety of different standards for HD and SD, transcoding when required Use an HD codec and SD codec which can be handled natively by the platform as a whole

3. Sky Media StandardsPick a Codec any Codec More analysis was required for the HD codec decision MPEG 2 was discounted due to it’s limited bit depth Pro-Res was discounted on interoperability grounds The following codec’s were considered;

4. Sky Media StandardsConclusions A detailed evaluation process of the codecs was performed based on; Picture Quality Interoperability Industry adoption AVC Intra 100 was chosen for HD content IMX 50 was chosen for SD content MXF Op1a standard is being used to wrap video, audio and ancillaries

5. Sky Media StandardsDon’t Forget Audio Audio is something that Sky takes great pride in A commitment has been made to work with uncompressed audio throughout the chain Multichannel audio metadata will be catered for by using S2020 and S436m This approach will allow us a far more content orientated approach to dynamic range and loudness Dolby D will still be used as transmission format

6. Sky Media StandardsHow Does This Help File Delivery If files can be delivered in the format which is handled natively to your system then it has great benefits to your output Improvements in processing power is allowing high quality ‘mezzanine’ video formats to be created on a greater percentages of computers Products like Signiant offer integration with the Edit platform vendors making it easier for HD programming to be created and delivered without using tape