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Author Topic: Just tried out these bad boys  (Read 14326 times)

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Offline Sean Gallemore

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Re:Just tried out these bad boys
« Reply #30 on: August 21, 2003, 04:21:29 AM »
Quote from: VA_TAPER on August 20, 2003, 09:31:21 PM
Quote from: plucks on August 20, 2003, 06:14:43 PM
Quote from: zhianosatch on August 17, 2003, 06:55:52 PM
Over 142 dB? Even at a Ministry stack, I'd be skeptical.
every 10dB gain is double the sound you hear...So,

Good luck
Phil



your points are 100% on; but it's every 6db = doubling not 10db.

peace, chris

6?! uh oh, i feel some controversy here
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Offline zhianosatch

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Re:Just tried out these bad boys
« Reply #31 on: August 21, 2003, 11:15:12 AM »
yes, it is 6.
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Offline Sean Gallemore

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Re:Just tried out these bad boys
« Reply #32 on: August 22, 2003, 08:05:09 AM »
Quote from: zhianosatch on August 21, 2003, 11:15:12 AM
yes, it is 6.

well shit

log base 6 baby!

if it makes my ears bleed, I like it!
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Offline plucks

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Re:Just tried out these bad boys
« Reply #33 on: August 22, 2003, 04:10:07 PM »
Well, I did a little more research and here's how I understand it:
every +/-10 db is double or half of the percieved volume.

The 6dB difference is this:
Every halving or doubling in distance from stacks if they were set up in a straight/vertical setup will result in +/- 6dB depending on your direction of movement.  The reason most concert PA stacks are set up at an angle is that it will result in a more spread out and even dB level.  This means that you won't really hear a major dB difference.

Hope this cleared some things up!

Phil
« Last Edit: August 26, 2003, 11:59:28 AM by plucks »
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Offline zhianosatch

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Re:Just tried out these bad boys
« Reply #34 on: August 22, 2003, 04:12:58 PM »
Quote from: Stealth Master Schwilly on August 22, 2003, 08:05:09 AM
Quote from: zhianosatch on August 21, 2003, 11:15:12 AM
yes, it is 6.

well shit

log base 6 baby!

if it makes my ears bleed, I like it!

base 10, base 10!
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Offline zhianosatch

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Re:Just tried out these bad boys
« Reply #35 on: August 22, 2003, 04:14:37 PM »
Quote from: plucks on August 22, 2003, 04:10:07 PM
Well, I did a little more research and here's the scoop:
every 10 db increase or decrease is double or half of the percieved volume.

The 6dB difference is this:
Every halving or doubling in distance from stacks in a straight-vertical setup will result in +/- 6dB depending on your direction of movement.  The reason most concert PA stacks are set up at an angle is that it will result in a more spread out and even dB level.

Hope this cleared some things up!

Phil

time to bust out my physics book and notes. i'll have the answer saturday night.

biaatches... ;)
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Offline Sean Gallemore

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Re:Just tried out these bad boys
« Reply #36 on: August 26, 2003, 04:47:02 AM »
but it armen, bust it

SPL is way beyond me
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Offline zhianosatch

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Re:Just tried out these bad boys
« Reply #37 on: August 26, 2003, 11:47:05 AM »
oh shoot, i forgot about this
tonight it is!
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Offline VA_TAPER

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Re:Just tried out these bad boys
« Reply #38 on: August 27, 2003, 02:15:40 PM »
Quote from: plucks on August 22, 2003, 04:10:07 PM
Well, I did a little more research and here's how I understand it:
every +/-10 db is double or half of the percieved volume.

The 6dB difference is this:
Every halving or doubling in distance from stacks if they were set up in a straight/vertical setup will result in +/- 6dB depending on your direction of movement.  The reason most concert PA stacks are set up at an angle is that it will result in a more spread out and even dB level.  This means that you won't really hear a major dB difference.

Hope this cleared some things up!

Phil

looks like we're both right actually:
http://ccms.ntu.edu.tw/~karchung/decibels/decibels1.ppt

it seems both 6db and 10db are considered doubling of volume, there is even contention among the experts!

peace, chris
« Last Edit: August 27, 2003, 02:53:13 PM by VA_TAPER »
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Offline plucks

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Re:Just tried out these bad boys
« Reply #39 on: August 28, 2003, 02:45:28 PM »
Yes, they are both doubling, but in different categories.
10 db is the percieved doubling
6 db is the doubling of gain.

It sure can get confusing.
Right on!  

Thanks for the ppt.  

Phil
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Offline Sean Gallemore

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Re:Just tried out these bad boys
« Reply #40 on: August 28, 2003, 05:17:17 PM »
Quote from: plucks on August 28, 2003, 02:45:28 PM
Yes, they are both doubling, but in different categories.
10 db is the percieved doubling
6 db is the doubling of gain.

It sure can get confusing.
Right on!  

Thanks for the ppt.  

Phil

what the fuck?!?! how can two different logarithms be run on the same scale?  this is way beyond me...
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Offline zhianosatch

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Re:Just tried out these bad boys
« Reply #41 on: August 28, 2003, 05:18:50 PM »
no way, it's sweet... didn't they teach you anything in PHYS 131?
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Offline Sean Gallemore

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Re:Just tried out these bad boys
« Reply #42 on: August 28, 2003, 05:29:08 PM »
Quote from: zhianosatch on August 28, 2003, 05:18:50 PM
no way, it's sweet... didn't they teach you anything in PHYS 131?

i had peters! didn't you get the low down on that old crusty?
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Offline zhianosatch

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Re:Just tried out these bad boys
« Reply #43 on: August 28, 2003, 05:51:22 PM »
i knew him 'fore you did... yellow by day's end...
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Offline Sean Gallemore

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Re:Just tried out these bad boys
« Reply #44 on: August 28, 2003, 06:06:43 PM »
Quote from: zhianosatch on August 28, 2003, 05:51:22 PM
i knew him 'fore you did... yellow by day's end...
we need to post a pic of that phucker with chalk all up and down his side ;D
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