Originally Posted by MKtheater
I have doing some testing with SPL's and Star Wars 2:AOTC should be 5 stars, not 3. It hit past 126 db's more often than any other movie. I have not tried Cloverfield yet but I did test WOTW.
I agree. The low-end in SW2 is pretty impressive, but other than the opening scene, not too much below 20-25Hz. Lots of sound in the 30-80Hz range, esp the lightsabers that make your chest and pant legs vibrate as they swing by...good stuff, would like to see a blu-ray someday...
As far as Transformers 2 not having much below 30Hz, that depends a lot on where the film was mixed, and what they had to monitor with. Most mixing stages cannot monitor stuff below 20Hz, and really can't do much below 30Hz, same as most movie theaters. They may have limited the amount of below 30Hz content with that in mind....typical exhibition venue playback capabilities.
One exception I can think of is the Todd-AO soundstage where BlackHawk Down was mixed, they trucked in 22 BagEnd subs to monitor the low end.....that's why the 7Hz content is so strong in that mix in the "Irene" scene....it's meant to to be there, and was monitored by the sound guys.
Something else to think about
: On most mixing stages (like most theaters), the front and surround channels are usually high-passed around 40Hz (to prevent damage to the speakers, usually vented boxes tuned to around 40Hz), so if there is some extreme LF content there, the mixer cannot hear it, nor can the theater audience. If that low freq info stays on the track during DVD/Blu-Ray prduction, it is being reproduced by our subs due to bass management on our receivers....when it was never heard by the mixer...I wonder how often that happens.