4K, versioning, and file-based operational efficiency (new podcast interview)

MC talks about 4K, versioning, and industry trends in this exclusive interview with Dan Addy, Founder and Managing Director of DTT Broadcast.   Dan Addy: People are buying 4K TV’s just because that’s what everyone else is doing and that’s what the marketing tells them to do. If you go into a Currys PC World …

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What should I look for in file-based audio correction?

Emotion Systems - Loudness checklist learn about...

File-based audio correction presents a number of challenges. You may wish to work with a variety of media files, e.g. mov, wav, or different flavours of mxf files. The media file may have audio that isn’t solely programme content. For example, tone and silence at the beginning and residual audio at the end. A compliance …

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Loudness Compliance: The 10-Point Checklist

10 Point Loudness Compliance Checklist from Emotion Systems - Programme (Program) Loudness Compliance for post, television broadcast, and playout

Historically we had peak-level based (PPM) audio measurement and the compliance spec said we were not to pass a certain PPM level. Commercials exploited this by keeping the sound close to the maximum peak, and as a result, it was louder.   The new loudness specification Over the last few years, the audio specification has …

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Why are Loudness and PPM important?

Why are Loudness and PPM important? Loudness and PPM are used as references to control the maximum audio levels in broadcast material. The issue is that a program and the commercial that follow it may have the same maximum PPM levels, but the commercial will frequently be perceived as louder. Having a loudness measurement means …

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Automating iTunes authoring, mastering, and the new compliance requirements

If you authoring and mastering iTunes and using -24 LUFS as per the new spec, you may want to read on. (Here’s a link to Apple ‘s spec for ProRes Audio Channel Data Assignment and Levels, in case you’d like more detail.)    We’ve heard that a lot of the clients who require transmission ready files also need …

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What Should (or Shouldn’t) a Loudness Tool Do?

What Should a Loudness Tool Do?   The requirement is to be able to analyse the audio, check for compliance and attenuate / normalise without any degradation of audio quality, and where audio is embedded within a video source signal or file, video is in no way degraded.   1. Measurement First of all any …

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Iain Davies

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