Forum for former BBC staff

Forum for former BBC staff
http://www.ex-bbc.net/cgi-bin/yabb/YaBB.pl >> For Those Of Sound Mind >> Is the PPM dead? http://www.ex-bbc.net/cgi-bin/yabb/YaBB.pl?num=1291654849 Message started by Administrator on Dec 6^th, 2010, 5:01pm

Title: Is the PPM dead?
Post by Administrator on Dec 6^th, 2010, 5:01pm

http://tech.ebu.ch/docs/r/r128.pdf

The introduction to this weighty document says:-

The EBU has studied the needs of audio signal levels in production, distribution and transmission of broadcast programmes. It is of the opinion that an audio-levelling paradigm is needed based on loudness measurement.
In addition to the average loudness of a programme (‘Programme Loudness’) the EBU recommends that the descriptors ‘Loudness Range’ and ‘Maximum True Peak Level’ be used for the normalisation of audio signals, and to comply with the technical limits of the complete signal chain as well as the aesthetic needs of each programme/station depending on the genre(s) and the target audience.

Please read on...

So there you have it. Problem solved.