Hello new to the board here. I have noticed the board in the past years just didn’t seem interested in signing up till now.
I can vouch for a rumble if not a bus that waits across the road I can feel the low frequency from the engine and its frequency is around between 30Hz I have seen this on Spectrum Lab when testing the living room. I think its 35Hz not that I care because I want to isolate the room so I don’t hear the damn thing!
I can occasionally feel it in the concrete based flooring that is only 8” thick that has steel pipes running underneath that is covered over by concrete.
The lows must be travelling though the road and up the buildings foundations then though the brick/walls not sure if I can feel it on the ground floor all I know is I have felt it before and even a Chinook helicopter from a 1/3 mile away the twin rotator blades produce a unique low frequency tone.
The sound waves are hitting the top of the roof then travelling though the building and so I notice a mild tremor vibration in the floor.
The building was made I guess in the 1950’s so it wasn’t deigned for state of the art noise control.
So as for the chest no I only feel it though my feet up my legs and to the ole noodle that tells me where to look.🙂
I read, some time ago, that the avarage male chest has a resonent (sp) freq of 80hz and when a kick drum hits at 80hz, it "thumps" the chest.
I spent most of yesterday servicing some Turbo 24" horn loaded subs, and whilst doing so a small test was conducted. Unfortunately, I was wearing tight-ish jeans, so trouser flapping was not observed at any frequency. However maximal tee-shirt sleeve resonance, (AKG branded Fruit of the Loom size XL), was observed at 27 Hz. Chest resonance, for me, was 83Hz, and for my assistant, (the boss's 10 YO grandson, helping out for the day), 147Hz. However, These are just initial results, with limited controls, and more work needs to be done.
Why not simply sit in the chair and with mouse besides you slowly click on each size wave tone step-by-step from (20Hz 21Hz 22Hz and so on and on up frequency bands) while taking down notes on paper what tones vibrate the seating, what tones vibrate your body, what tones are annoyingly too hush/high on the ear, what tones dip down or nulls, what tones are pleasant enough that you can feel, what tones sound even and uniform on the ear and this is done (when turning your head) you make the tone say 60Hz sound equal on both ears when looking to left, yet when turning the head facing forwards the tone sounds like its on right ear and its really off-putting.
Get the idea!
When we run sweep in the system then look at the graph, I kinder think it looks cool until I’m actually sitting the seat and notice its not all that good it has few missing things. Then it occurred to me to sit in the seat while playing the size waves.
Get the idea!
When we run sweep in the system then look at the graph, I kinder think it looks cool until I’m actually sitting the seat and notice its not all that good it has few missing things. Then it occurred to me to sit in the seat while playing the size waves.
I've done that JBL. it works great. I've also made the speakers totally flat in my room with an EQ and could not stand it. Flat is cool....if that is your taste.
"I think it is all three DJK. Woofs, mids, and HF. "
INTEGRATE. transitive verb. 1: to form, coordinate, or blend into a functioning or unified whole.
If you get the system really thumping you in the chest, turn off the mids and see what it sounds like.
INTEGRATE. transitive verb. 1: to form, coordinate, or blend into a functioning or unified whole.
If you get the system really thumping you in the chest, turn off the mids and see what it sounds like.
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Absolutely not.
I used to demonstrate this with a pair of Klipschorns. Crank it up until it was really thumping, and then pull the fuse for the HF. All the thump went away and the formerly tight bass sounded like mud and mush.
I used to demonstrate this with a pair of Klipschorns. Crank it up until it was really thumping, and then pull the fuse for the HF. All the thump went away and the formerly tight bass sounded like mud and mush.
The 'punch' of percussive sounds are roughly concentrated between 100-800Hz. The sounds above 800Hz are considered as part of the ‘attack’ of the sound. The 'attack' of the sound gives an accent to the ear of the 'punching' sound. Although the 'attack' can not be felt by the body, it does make the ear correspond to the part of the audio band that can be felt. This gives more evocative feel to the punch. For instance, if you eq individual instruments like a drumkick with more >1500Hz to raise the attack, it will also sound like it adds more 'punch'.
(Of course the point where the feeling is taken over by hearing is not centred on one spot like 800Hz, but instead covers a wider area.)
(Of course the point where the feeling is taken over by hearing is not centred on one spot like 800Hz, but instead covers a wider area.)
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Question: how loud does it have to be to actually feel it in your chest?
I can (theoretically) hit 109dB in room, yet I doubt I'm even close. Sure, the floor shakes (I'm on the first floor), stuff vibrates a little, but visceral impact? Nope.
I can (theoretically) hit 109dB in room, yet I doubt I'm even close. Sure, the floor shakes (I'm on the first floor), stuff vibrates a little, but visceral impact? Nope.
I've wondered this myself. I've been in nightclubs where the bass thump from techno music hits you hard enough to affect (or give the illusion of) your breathing.
Maybe several t-tqwt with lms 5400 Ultras and a couple of Crown XTi 6002 might do the trick.
Hmmm...
Not sure if that'd go down so well in a teenager's bedroom system.
Think my mids need to be able to move more air if I'm gonna get this "punch".
Yeah, that might be tricky. I have heard stories of folks that used to get the old electro voice 30" and mount them in closet doors, if you've got a spare closet maybe you could hunt one down 😉
"The chest resonance of the average male is circa 130Hz" My fillings fall out at about 2.375Hz.
Peter C.
Peter C.
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