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atomsk
Advanced Member
United States
1,660 posts
Joined: Jan, 2009
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 Posted - 2009/12/27 : 04:04:31
So i listen to some dubstep here and there, so im listening to some right now.. I got a 2.1 set up with a 60 watt sub, so when i listen to the bass i can hear it do something like this...
Lower Deep bass: lower part of the floor rumbles
Mid deep bass: can feel it in my legs
High deep bass: can feel it in my lower body
Higher deep bass: can feel it in my chest and head
Is it just what bass dose, or how dubstep is made?
And sometimes i can feel it move from front to back.
I have no bass boosters on, my sub is on my floor around the center of the set up, the satellites are mid ear level, i dont have much in my room to block sound and i live in a flat/apartment....
So why is this?
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Meathead
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United Kingdom
4,217 posts
Joined: Sep, 2006
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Posted - 2009/12/27 : 04:25:16
I'll let someone who actually knows what they are talking about explain why, but yes that's what bass does. It does it in every genre. I imagine you're only just noticing it now in Dubstep because it is much more bass dominent than, for example, Hardcore.
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"Music creates order out of chaos; for rhythm imposes unanimity upon the divergent, melody imposes continuity upon the disjointed, and harmony imposes compatibility upon the incongruous." -Sir Yehudi Menuhin
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atomsk
Advanced Member
United States
1,660 posts
Joined: Jan, 2009
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Posted - 2009/12/27 : 04:33:01
quote:
Originally posted by Meathead:
I'll let someone who actually knows what they are talking about explain why, but yes that's what bass does. It does it in every genre. I imagine you're only just noticing it now in Dubstep because it is much more bass dominent than, for example, Hardcore.
Ok now i dont feel that dumb, i thought it was what it did but wasnt 100% sure...and yes to the bass and dubstep thing
anyone care to explain this?
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Meathead
Advanced Member
United Kingdom
4,217 posts
Joined: Sep, 2006
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Posted - 2009/12/27 : 04:39:26
quote:
Originally posted by atomsk:
Ok now i dont feel that dumb, i thought it was what it did but wasnt 100% sure...and yes to the bass and dubstep thing
anyone care to explain this?
http://www.physicsclassroom.com/Class/Sound/u11l1c.cfm
EDIT
Actually that might not help. To understand why the floor rumbles for lower bass notes and your knees start knockin' or your head starts boppin' for others you need to understand what sound is. Google and Wiki should be able to help.
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"Music creates order out of chaos; for rhythm imposes unanimity upon the divergent, melody imposes continuity upon the disjointed, and harmony imposes compatibility upon the incongruous." -Sir Yehudi Menuhin
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Edited by - Meathead on 2009/12/27 04:43:13 |
Starstruck
Advanced Member
Australia
1,152 posts
Joined: Jul, 2008
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Posted - 2009/12/27 : 04:52:15
It's because of the sine wave hitting different frequencies man. Each note hits a difference main frequency. You'll find the higher the note is, the higher the frequency, and visa versa. The low amount that shakes the floor is probably 35-50 hz.. Keep in mind that 20-40hz isn't very audible, the Human ear only recognizes down to 20 hz. The deep rumbly bass you feel is around 50-63 hz, whilst the higher it gets for example, 150hz, is when it starts to get into the mid range and have a more recognizable timbre to the sound. But you wont find any part of a subbass peaking at 150, because it's probably an octave too high, just giving an example.
regardless, you're using a sub as well. Subs amplify low end frequencies.
In dubstep, theres alot of LFO modulation on the actual bass, LFO = Low frequency oscillator. The modulation of this can be altered and automated in pitch, speed etc, thus creating that wobble sound. The wider the pitch wobble, i guess the more different frequencies the bass hits.
At the same time, chances are you're listening to the dubstep in a very "coloured" room. Meaning you're getting alot of inaccurate frequency representations, particularly in the low end. Which is why you'll always see studios with acoustic foam strategically placed around the room, most including bass traps to diffuse the low end frequencies in every corner. But keep in mind you're using a sub as well, which all they do are amplify low end frequencies.
At the same time, you dont need to bother about any of the room stuff i explained, just to give you a bit of an insight :).
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Edited by - Starstruck on 2009/12/27 05:03:24 |
Dante
Advanced Member
Vatican City State (Holy See)
1,185 posts
Joined: Dec, 2009
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Posted - 2009/12/27 : 05:28:32
I'm not an expert, so this may not be spot on, but here goes my attempt:
Sounds are mechanical waves that affect physical objects more directly than electromagnetic waves (light, gamma rays, etc). I'm guessing the rumbling part is caused by resonance. For instance, you've probably heard the stuff about opera singers breaking glass if they hit a high C note. While that is very exaggerated, it's actually not entirely fiction. All glass resonates at it's own frequency, and you can find this frequency by tapping the glass with whatever, and that sound produced is the frequency at which the glass will resonate if exposed to loudly enough. The thicker(denser) the glass, the lower the frequency. I'm not expecting you to have any "aaah 5400Hz, of course" moments if you tap glass, but if you can figure out the frequency, produce a sine wave at that frequency and then amplify the amplitude of the sound wave enough, the glass will start to resonate and if it resonates enough, break.
Of course this doesn't only apply to glass, it's just a good example. Your floor, legs and head have their own frequencies at which they will resonate, which is why you feel the bass separately at different bass frequencies.
Now I just have to figure out which frequency will make your head explode! :p
edit: oh lol meant to post this on my näkk account but whateva!
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http://soundcloud.com/bballs
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Edited by - Dante on 2009/12/27 05:29:09 |
näkkk
Advanced Member
Norway
755 posts
Joined: Feb, 2009
16 hardcore releases
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Posted - 2009/12/27 : 05:30:01
That's better.
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http://www.myspace.com/nakkenboro - Freeform etc
http://www.myspace.com/cillitgb - Gabba
http://www.youtube.com/user/noddynudel - stuff
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atomsk
Advanced Member
United States
1,660 posts
Joined: Jan, 2009
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Posted - 2009/12/27 : 05:49:48
quote:
Originally posted by Dante:
edit: oh lol meant to post this on my näkk account but whateva!
quote:
Originally posted by näkkk:
That's better.
I guess you had your friend do that for you? lol
and thanks james!
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Lilley
Advanced Member
Australia
3,740 posts
Joined: Jul, 2006
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Posted - 2009/12/27 : 14:33:10
quote:
Originally posted by Dante:
Now I just have to figure out which frequency will make your head explode! :p
didnt they find it in mars attacks?
also could the floor shake due to very low frequency transparency?
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nearly in line....
.....strange continuity problems
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Future_Shock
Advanced Member
Australia
2,483 posts
Joined: Apr, 2007
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Posted - 2009/12/27 : 16:58:56
quote:
Originally posted by Starstruck:
It's because of the sine wave hitting different frequencies man. Each note hits a difference main frequency. You'll find the higher the note is, the higher the frequency, and visa versa. The low amount that shakes the floor is probably 35-50 hz.. Keep in mind that 20-40hz isn't very audible, the Human ear only recognizes down to 20 hz. The deep rumbly bass you feel is around 50-63 hz, whilst the higher it gets for example, 150hz, is when it starts to get into the mid range and have a more recognizable timbre to the sound. But you wont find any part of a subbass peaking at 150, because it's probably an octave too high, just giving an example.
regardless, you're using a sub as well. Subs amplify low end frequencies.
In dubstep, theres alot of LFO modulation on the actual bass, LFO = Low frequency oscillator. The modulation of this can be altered and automated in pitch, speed etc, thus creating that wobble sound. The wider the pitch wobble, i guess the more different frequencies the bass hits.
At the same time, chances are you're listening to the dubstep in a very "coloured" room. Meaning you're getting alot of inaccurate frequency representations, particularly in the low end. Which is why you'll always see studios with acoustic foam strategically placed around the room, most including bass traps to diffuse the low end frequencies in every corner. But keep in mind you're using a sub as well, which all they do are amplify low end frequencies.
At the same time, you dont need to bother about any of the room stuff i explained, just to give you a bit of an insight :).
Pretty much. A little too specific but right on the money.
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New Future Shock Hardcore: https://soundcloud.com/futureshockgroup
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näkkk
Advanced Member
Norway
755 posts
Joined: Feb, 2009
16 hardcore releases
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Posted - 2009/12/27 : 18:17:53
quote:
Originally posted by Lilley:
quote:
Originally posted by Dante:
Now I just have to figure out which frequency will make your head explode! :p
didnt they find it in mars attacks?
No they just played some horrible country music, and I don't think it works on Americans since they made country :p
Atomsk: No, I actually registered a new account and forgot I was logged into it
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http://www.myspace.com/nakkenboro - Freeform etc
http://www.myspace.com/cillitgb - Gabba
http://www.youtube.com/user/noddynudel - stuff
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tru bass
Advanced Member
United Kingdom
1,996 posts
Joined: Jul, 2006
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Posted - 2009/12/27 : 19:04:33
everyone who posten in here has avoided the answer, resonance.
everything has a resonant frequency. the reality is that the bass is wobbling the whole room at the same frequency but some items in which the resonant frequency matches (or is close to) the frequency of the bass' frequency the vibration is of a larger amount.
that's a simple explanation as to why the vibration is amplified so much so that you experience it as just that area vibrating, however, the fact you suggest the resonance of the solids may correspond to the height at which it is felt is wrong.
that's a very simplified explanation of resonance btw, check wikipedia or feynman's lectures for more info..
And that is why i'm doing a mudda phukking masters in physics bitches
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http://soundcloud.com/shrubman
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Meathead
Advanced Member
United Kingdom
4,217 posts
Joined: Sep, 2006
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Posted - 2009/12/27 : 19:09:41
quote:
Originally posted by tru bass:
everyone who posten in here has avoided the answer, resonance.
I knew it was that but couldn't explain why so left it for someone else
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"Music creates order out of chaos; for rhythm imposes unanimity upon the divergent, melody imposes continuity upon the disjointed, and harmony imposes compatibility upon the incongruous." -Sir Yehudi Menuhin
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choonland
Advanced Member
Colombia
1,100 posts
Joined: Dec, 2007
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Posted - 2009/12/27 : 23:01:08
quote:
Originally posted by atomsk:
lower part of the floor rumbles
can feel it in my legs
can feel it in my lower body
can feel it in my chest and head
So why is this?
sounds like an orgasm 
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https://soundcloud.com/naturatech
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näkkk
Advanced Member
Norway
755 posts
Joined: Feb, 2009
16 hardcore releases
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Posted - 2009/12/27 : 23:22:18
quote:
Originally posted by tru bass:
everyone who posten in here has avoided the answer, resonance.
Actually read my post again, under the pseudonym Dante, and you will see I built it around resonance ;)
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http://www.myspace.com/nakkenboro - Freeform etc
http://www.myspace.com/cillitgb - Gabba
http://www.youtube.com/user/noddynudel - stuff
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atomsk
Advanced Member
United States
1,660 posts
Joined: Jan, 2009
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Posted - 2009/12/28 : 02:38:22
quote:
Originally posted by Naturatech:
quote:
Originally posted by atomsk:
lower part of the floor rumbles
can feel it in my legs
can feel it in my lower body
can feel it in my chest and head
So why is this?
sounds like an orgasm
Nahh one of those are more like "oh oh oh......omg its inside! crap!"
xD
jk
but thanks for all the reply's guys
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