1. Over the years, Canadians have increasingly expressed irritation over the unnecessary loudness of television commercials, which is due in part to the use of audio processing techniques to make commercial messages seem louder than regular programming.[1]
2. In 2006, the International Telecommunications Union (ITU) established an international standard to measure the loudness of television programs.[2] In November 2009, based on the ITU’s standard, the Advanced Television Systems Committee (ATSC)[3] developed a practice that enables the broadcasting industry to effectively measure and control the loudness of commercial messages.[4]
3. The ATSC’s recommended practice sets out methods for broadcasters and television service providers to ensure that commercials are received at an even volume relative to regular programming. This would address the concern of viewers over the need to constantly turn down the volume of commercials.
4. In response to Canadians’ complaints about loud commercials and given the availability of equipment based on the above-noted international standards, the Commission sought comment on possible measures to solve the problem.
5. The Commission received over 7,000 comments in response to its Call for comments on measures to control the loudness of commercial messages, Broadcasting Notice of Consultation CRTC 2011-102, 17 February 2011. The complete record for this proceeding can be found on the Commission’s website at
www.crtc.gc.ca under “Public Proceedings.