Just for your info.

All television has a maximum setting for volume on broadcats, measured in decibels.

So no channel is really louder than another, and adverts are not louder than the programs. To get them to sound louder, the people doing the sound filter out certain frequencies, and boost others, mainly the mid range, which makes it sound louder, but in effect it is the same volume as everything else.

In pop music this is done as well, so a song featuring a guy on acoustic guitar singing will actually have a much broader dynamic range than a dance song with 50 instruments, because in a dance song you will filter out a lot of frequencies to make the song sound more energetic.

 

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