This Advertising Guidance helps broadcasters to comply with BCAP Code rule 4.7 concerning sound levels in advertising.  The basic principle of BCAP’s rule is that viewers should not be presented with advertising in commercial breaks where the sound level is significantly higher, as a whole or for individual commercials, than the sound level of the surrounding programming.  The guidance is split into two parts:  the rule (and its interpretation) and the relevant technical standards.



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