DiscussWorldIssues - Socio-Economic Religion and Political Uncensored Debate - View Single Post - Is it just me, or does 16:9 seem to be a minority in widescreen?

**wsbizwsa** · 01-29-2009, 07:22 AM

Actually, most ads are not louder than the feature programs... the smart cookies that produce the audio for these ads often use and accentuate frequency ranges which are more audible to the human ear, thus making them seem louder. This is becuase in many places it is actually illegal or against broadcast rules to have ads louder than the feature presentations. Films and TV shows may not seem as loud becuase they take a more realistic approach when re-producing real-world sound, and use a much wider variety of sounds which may or may not fall within the optimum hearing ranges.

It actually boils down to the dialnorm metadata, or lack thereof. The commercials are pressed to the ceiling with dynamic range compression but on standard definition commercials they aren't required to have that information embedded. That information is read by the TV or audio processor to help normalize the levels between content. Which is why the most drastic difference in audio levels typically occurs when you are watching a HD show and then a local commercial comes blaring through.

01-29-2009, 07:22 AM	#29
wsbizwsa Join Date Oct 2005 Posts 360 Senior Member	Actually, most ads are not louder than the feature programs... the smart cookies that produce the audio for these ads often use and accentuate frequency ranges which are more audible to the human ear, thus making them seem louder. This is becuase in many places it is actually illegal or against broadcast rules to have ads louder than the feature presentations. Films and TV shows may not seem as loud becuase they take a more realistic approach when re-producing real-world sound, and use a much wider variety of sounds which may or may not fall within the optimum hearing ranges. It actually boils down to the dialnorm metadata, or lack thereof. The commercials are pressed to the ceiling with dynamic range compression but on standard definition commercials they aren't required to have that information embedded. That information is read by the TV or audio processor to help normalize the levels between content. Which is why the most drastic difference in audio levels typically occurs when you are watching a HD show and then a local commercial comes blaring through.
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