Very loud, bring ear protection! The crackling of the engines will make your entire body shake. Other than that just comfy clothes you can walk on the sand in. It's a real unique experience, you're in for a treat!
I've never heard it IRL but I absolutely love this sound, also from back then when the Space Shuttle launched. IDK why, but it is just such a perfect sound to me. As if it were the best indicator of the tremendous amount of energy being released there.
The deep bass notes go soo low and have this wild elastic ringing tonal quality to them. Like someone is playing a huge kit of koto drums or something. You can really start to hear acoustic dispersion effects as well.
Gee, K. L., Mathews, L. T., Anderson, M. C., & Hart, G. W. (2022). Saturn-V sound levels: A letter to the Redditor. The Journal of the Acoustical Society of America, 152(2), 1068-1073.
https://web.archive.org/web/20220831190741id_/https://asa.sc...
"While this peak level represents acoustic amplitudes that would propagate nonlinearly to rapidly form shocks and result in perception of jet “crackle” (e.g., see Gee et al., 2016), will it melt concrete or set grass or one’s hair on fire? It will definitely not."
The total power output of Concorde was around half that of a 747, but for takeoff Concorde needed to use after burners - which I guess is the same mechanism at play here.