Originally Posted by jamiebosco
Maybe the RTA in REW? - I think I recall the scene you're talking about, next time I fire up REW I'll check a few scenes in Hans Zimmer: Live in Prague
I took your suggestion and played around with REW this morning and learned something very interesting I thought I would share.
I captured some peak spectrum graphs using the RTA function of REW like you suggested (thanks for the lead!
Each graph is the peak measured during the passage along with the noise floor (measurement taken with a quiet room). This is my normal system tune that I use for listening to music and movies. MV at -10 (I usually listen at -5 but this is more measurement friendly for the rest of the house). Pay no attention to the actual volume, my setup is not volume calibrated. It is a calibrated UMIK, however.
Looks like the chaper 33 rumble is in the 14-16 hz range. Subsequently, I watched several other passages using the live view of the RTA and there are several passages with this 14-16hz rumble at various volumes.
Looks like the strong, house rattling passage at 1:34 is around 35hz. Seems kinda odd it would be that high based on your experience with it @jamiebosco
Could be the other components of that passage. I noticed that the peak is one thing but the total spectrum used in that passage matters almost just as much.
The revelation for me is the 3rd graph. This is a capture of the peak spectrum during 2 of the many notes played in chapter 35 at time stamps 1:53:16 and 1:53:19. Each line is one note, a couple seconds long each.
The purple has a peak at 27.4 hz and another (harmonic?) at 13.8hz.
The blue note peaks at 30.8 hz and 15.36 hz.
What are the impacts to the sound of those notes if your system cannot reproduce 13.8 and 15.36 hz?
I'm just a hobbiest here but maybe this is why my ULF capable sub sounds so awesome to me!
If you have REW and Hans Zimmer: Live in Prague - start the RTA and watch the spectrum live as you play through chapter 35 Interstellar Cornfield Chase. Set the screen to view only 5hz to 100 or 150hz. Pay attention to the spectrum peaks of each note (primary and harmonics?). Also notice that around 1:53:15 the spectrum from 15hz all they way to zero all of a sudden jumps 25dB as "your eyeballs wobble"! Who says music has no content below 20hz!