2021-10-09, 09:11 PM
I just took a look at Batman Begins. And I think it provides the answer.
The UHD 5.1 is indeed identical to the Cinema DTS track. In order to make the untouched Cinema DTS match the UHD levels we need to attenuate the surrounds by -3dB and boost LFE by +6dB just as zoidberg said. The key thing is that this causes the same clipping as with LOTR but that same clipping is on the UHD track.
So the reasonable conclusion to this is that zoidberg's +6dB LFE adjustment is correct for all post-1999 movies and any resulting clipping would have been present in the hardware decoded theatrical presentation.
The UHD 5.1 is indeed identical to the Cinema DTS track. In order to make the untouched Cinema DTS match the UHD levels we need to attenuate the surrounds by -3dB and boost LFE by +6dB just as zoidberg said. The key thing is that this causes the same clipping as with LOTR but that same clipping is on the UHD track.
So the reasonable conclusion to this is that zoidberg's +6dB LFE adjustment is correct for all post-1999 movies and any resulting clipping would have been present in the hardware decoded theatrical presentation.