A new algorithm to regulate the volume of a noisy TV commercial appears

ById-iom

While watching television, the volume rises as soon as becoming a commercial, and it may be surprised, but guidelines for regulating the volume of such TV commercials are established in each country. In the United States, it is expected that stricter volume regulation will be realized by adopting a new algorithm in the course of repeated recursion that the method of clearing the guidelines is created and prohibited.

Federal Register | Implementation of the Commercial Advertisement Loudness Mitigation (CALM) Act
https://www.federalregister.gov/articles/2014/08/27/2014-20251/implementation-of-the-commercial-advertisement-loudness-mitigation-calm-act

Algorithms will start hunting down extra-loud TV commercials next year | The Verge
http://www.theverge.com/2014/8/29/6082663/fcc-adopts-better-enforcement-algorithm-for-too-loud-tv-commercials

In the United States in 2011Commercial Advertisement Loudness Mitigation Act, Public Law(CALM regulations) "CALM 111-311" was enacted, broadcast regulation will be carried outFederal Communications Commission(FCC) ordered the establishment of the volume control rule of the television commercial, as a result, the regulation item concerning the volume of the CM was decided in 2012, and the regulation was imposed on the volume.

ByPaul Townsend

However, according to the conventional FCC regulation, the upper limit of the average value of the volume of the television commercial was determined and regulated, so by adopting the "blank time" with the sound volume kept to the minimum, the average volume is lowered and the peak volume is kept high A deadlock technique to do is developed.

Therefore, the FCC reviewed the regulation contents, developed an algorithm that detects "blank time" which is very small volume adopted for the purpose of maintaining peak volume, excluding "blank time", and then setting the volume of the remaining part To the policy of averaging the upper limit value, we decided to start operation from June 4, 2015.

ByFoomandoonian

With this newly developed algorithm, the "loud TV commercials" with high peak volume are screened out across the board, and a more quiet television commercial is expected to be realized.

Even in Japan (PDF notice)Television CM material import standard "voice level operation standard"(Loudness criterion) was formulated, management of the volume level began in April 2013, but I would like to expect further improvement and operation of the mechanism to restrict unpleasant large volume with appropriate criteria based on human "feeling" It is place.