head rattling?

Posted on

Hold 'Em Czar
Member Since: Dec 30, 2004

anybody know about what frequency a human head would resonate at? just thinkin' about dooin' some NINish noize tune....

[ Back to Top ]


Perdido
Member
Since: Dec 15, 2004


Feb 25, 2005 02:38 pm

dunno about the head, but the human bowels resonate at between 2 and 4 HZ... its refered to as "brown noise". Supposedly, if you play that frequency loud enough, it will cause loss of control in the bowls, and a person will crap themselves. You could try an expirement with that. that way, you could throw it in there randomly during a song, and if they didnt have good subs, you couldnt tell it was there at all. Kind of a "sneak up behind you when you dont expect it" type of move.

I am not a crook's head
Member
Since: Mar 14, 2003


Feb 25, 2005 02:50 pm

hehe, Mythbusters just busted the brown noise myth on an episode I saw last week on the Discovery channel.

the guy sat in the middle of 3 or 4 cabinets loaded with 8 12" subs and they played tones in the lowest frequency ranges (between 2 and 9 Hz) and all it did was nearly drive everybody insane. No pooping :-)

It was kind of cool to see 24 12" speakers bouncing back and forth at 9Hz in unison though.

Perdido
Member
Since: Dec 15, 2004


Feb 25, 2005 03:03 pm

they wouldnt be able to bust a myth by using the wrong equipment... 12s on average have a free air resonant freq of 23-29 hz you need 15s or 18s for that project. and its not a myth, it was proven like 5 years ago... i remember reading the artical in a mag.

Hold 'Em Czar
Member
Since: Dec 30, 2004


Feb 25, 2005 03:03 pm

maybe they were outta phase though, hence not gettin' the full effect....hehe i laughed my *** of readin' that reply though. i've never heard of brown noize.

peace

wyd

Hold 'Em Czar
Member
Since: Dec 30, 2004


Feb 25, 2005 03:05 pm

i wouldn't go to Maxim or Stuff lookin' for answers about poop either. lol

I am not a crook's head
Member
Since: Mar 14, 2003


Feb 25, 2005 03:34 pm

Judging by the picture, I guess it was 15" drivers:


http://www.meyersound.com.au/images/Brownnote/speakers.jpg


Member
Since: May 09, 2004


Feb 25, 2005 03:50 pm

2-4 hz? Is there even a speaker in existance that can go that low?

Hold 'Em Czar
Member
Since: Dec 30, 2004


Feb 25, 2005 04:01 pm

yeah i really hope they had a real acoustician on hand to check for phase.....

Member
Since: May 09, 2004


Feb 25, 2005 04:03 pm

Thats true too, especially with the speakers all pointing at each other like that, could be some standing waves.

Perdido
Member
Since: Dec 15, 2004


Feb 25, 2005 06:49 pm

I just checked out that picture, and I see MANY dechnical deficiencies with their setup. the left speaker box most likely is canceling out the right side, the back has no hard surface to bounce off... the stool is set too high to catch the full power of 2 hz tones, there are absolutly NO walls or anything else for these speakers to resonate off.. generally, these people did not know what they were doing when attempting to dispell the brown noise theory.



on an interesting side note... thought this might be a good time to bring it to everyones attention.. the average earthquake registers on an RTA as being between 3 and 10 HZ.

Hold 'Em Czar
Member
Since: Dec 30, 2004


Feb 25, 2005 07:17 pm

and that scares the **** outta lot of ppl!

Member
Since: May 09, 2004


Feb 25, 2005 07:26 pm

I just read the story from the site the picture was posted from. Apparently, their version of the myth holds the spectrum at between 5 and 20hz. So they didn't even test lower than that.

That said, it seems they actually did do some thorough planning.

www.meyersound.com.au/brownnote.shtm

I didn't know that about the earthquakes. I'll have to remember that when I wan't to feel smart around my friends.

Member
Since: Apr 26, 2002


Feb 25, 2005 07:35 pm

Didn't south park have an episode about this before?

bace135 in the house tonight!
Member
Since: Jan 28, 2003


Feb 25, 2005 09:00 pm

I bought my SM58 off this guy who said that he used to do sound for MC Hammer when he toured. Apparently Hammer always wanted the biggest, loudest bass sound he could get, and one time they even broke a chandalier with the sound when they were in Russia. Anyways, he had a whole spiel about how the bass sound waves generated by the PA stacks they were using were 10 ft tall. He said that you subconsiously have to tighten your muscles to prevent the poopage, and after a while your muscles get tired, and you'll have to dookie (usually not in your pants though). He also said that in world war II bombs were designed to produsive low frequency sounds when they exploded to make soldiers crap themselves even if they didn't injure them. I don't know if any of this is true, but the SM58 he sold me works good.

I am not a crook's head
Member
Since: Mar 14, 2003


Feb 25, 2005 10:25 pm

Hell yeah Johnny, and it was all Cartman's idea

Im certainly not defending anything I see on the motorcycle building...er...Discovery channel any more, but somebody at least tried it and didn't get it to work. I'll believe it when I take a Disco Dump!

Ex-Wookie
Member
Since: Aug 29, 2003


Feb 25, 2005 11:07 pm

I have heard that the human brain will shake apart if it is exposed to a 7 Hz wave for a long enough period of time. Duno if it is true though.

And don't truck drivers get ulsers(sp) 'cause the engines resonate at 40 Hz or something?

...bringing sexy back
Member
Since: Jul 01, 2002


Feb 26, 2005 02:34 pm

american chopper day on discovery tomorrow...awESOME!

Hold 'Em Czar
Member
Since: Dec 30, 2004


Feb 26, 2005 02:42 pm

you kids and your TV's

bah humbug...

Related Forum Topics:



If you would like to participate in the forum discussions, feel free to register for your free membership.