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Author Topic: Just tried out these bad boys  (Read 6460 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 »
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

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.

Offline Sean Gallemore

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Re:Just tried out these bad boys
« Reply #32 on: August 22, 2003, 08:05:09 AM »
yes, it is 6.

well shit

log base 6 baby!

if it makes my ears bleed, I like it!

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 »
yes, it is 6.

well shit

log base 6 baby!

if it makes my ears bleed, I like it!

base 10, base 10!

Offline zhianosatch

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Re:Just tried out these bad boys
« Reply #35 on: August 22, 2003, 04:14:37 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... ;)

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

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!

Offline VA_TAPER

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Re:Just tried out these bad boys
« Reply #38 on: August 27, 2003, 02:15:40 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
"Then you have those who are completely loyal to Trey. Of course, they are the Republicans. Trey can play horribly, make mistakes, probably lie to the audience yet his backers will not waiver in their staunch support of him." | You may ask your self, how do you get a free bottle of champagne at dinner?  "Guest on Guest Violence"
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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 »
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...

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?

Offline Sean Gallemore

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Re:Just tried out these bad boys
« Reply #42 on: August 28, 2003, 05:29:08 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?

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...

Offline Sean Gallemore

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Re:Just tried out these bad boys
« Reply #44 on: August 28, 2003, 06:06:43 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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