Stricter regulations across the globe, the worldwide need for standardized audio level loudness processing, the need for logging and graphing mixed with long-term records maintenance for compliance verification, and the convergence of SDI/IP and ASI technologies all make for a challenging time in the broadcast industry.
Loudness is making a lot of noise these days, but what does it really mean? There is certainly no shortage of gurus who are happy to posit answers, but are they addressing the right questions?
For decades audiences have been complaining about the differences in perceived loudness between different parts of a television service, most commonly that the commercials seem louder than the programmes. Finally broadcasters, prompted in many cases by regulators, have addressed the issue.
The authors, experts in audio measurements, explain the BS1770 loudness measurement standard, its recent revisions, and how to verify that a loudness meter conforms to its requirements. (pictured Richard Cabot). For images and figure reference please click to read the original version on the tv-bay digital magazine
Much has been said about audio loudness and there can be few people in broadcast who are unaware of the new legislation being introduced by various countries to control this problem.
We all watch TV with the remote control close at hand; not just to change channel but more often than not, to ride the volume control because programme and commercial loudness varies from show to show, channel to channel.
Anyone involved in our industry cant have failed to notice the amount of noise broadcasters, manufacturers and legislators are making about audio loudness. As topics go, this one is currently red hot.
The NAB show is not the first event that comes to mind for pro-audio kit but in fact rivals any audio-specific exhibition on the planet. The following is a summary of significant new sound equipment seen during a tour of this year's exhibits.
We all watch TV with the remote control close at hand; not just to change channel but more often than not, to ride the volume control because programme and commercial loudness varies from show to show, channel to channel.
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