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Just wondering if this is a trend many more have been experiencing, as I don't think I am the only one (I think possibly some other brands as well), but when I have been comparing my Yamaha 663 to my old Onkyo 595, the onkyo 595 plays the DTS tracks usually a lot more louder, and on the odd occasion, depending on the title that little bit louder.


Now with my Yamaha 663, I have notice some titles appear to be a bit more quieter, many usually on the same level and I cannot tell the difference, and some playing louder.


Maybe it is the way how the decoders on av receivers are like nowadays?


I do recall similar threads posted here and there and people have notice the same thing.
 

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The usual reason DTS is louder is because the DD and DTS tracks start with the same master soundtrack, but DD had dialnorm and DTS does not. The DD Dialnorm is set to something like -4 dB for reasons I forget, but that seems to be approximately the standard, if memory serves.


DD would be the same level as DTS if it's dialnorm value was 31 (unity) all other things being equal.


However, it's possible, for reasons I won't bother speculating about, that DD and DTS would not be encoded from the identical master, or they processed them in some way to create a difference. Or you have some setting which effects one, and not the other, like a DRC setting which only effects DD.
 
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