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 …

Continue reading »

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 …

Continue reading »

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 …

Continue reading »

From the summer of love to the summer of hope…

It was 50 years ago that Sgt. Pepper called the band to play… and the result was one of the greatest albums of all time. That was the summer of love.   This year has had its dark moments, but some of the recent events fill me with the thought that it will be the …

Continue reading »

Loudness: What is Gating?

What is Gating? Some audio clips may have a prolonged period of silence or low volume sound, which can skew the loudness calculation, resulting in any sound in the clip being altered to be too loud. For example, a nature documentary may have long periods of silence where animals are shown. These extended quieter periods …

Continue reading »

EBU R128s1 Loudness Compliance (Eff and Engine trial download)

https://br232.infusionsoft.com/app/linkClick/9080/1b7072d34c4981f1/465900/d72dac3e75cfc786

Recent changes in loudness recommendations by the EBU (R128s1) means that your short form content may need to comply to short term loudness. We have written a new loudness processor that allows program loudness and true peak compliance, and is also R128s1 compliant. The new processor also has an option for loudness range processing. We’d …

Continue reading »

Older posts «

Iain Davies

Get your technical question answered

I am happy to answer your technical questions or set up a time to screen share and go over your system setup. Just fill in the form and we will set up a time to meet.

Thanks and I will get back to you shortly.