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#351346 - 07/03/11 08:38 AM Re: Upstairs bonus room: Slanted ceilings [Re: JohnK]
Da_Gimp_Pimp Offline
connoisseur

Registered: 06/23/07
Posts: 3972
Loc: Sitting down somewhere
Originally Posted By: JohnK
But to put some numbers to Alan's comment, a typically sized and furnished home room has an R60 reverberation time of around a half-second. R60 is the usual standard applied and represents the time in seconds(thousands for Mark's room)for the sound level to diminish 60dB after it's stopped playing. 60dB is used because it's about the difference between the loudest orchestral peaks around 100dB and room background noise levels around 40db. 60dB is therefore also about the widest practical dynamic range for a recording intended to be listened to at home.

In contrast to the half-second or so R60 at home, the finest concert halls have R60 times on the order of two seconds. Hence the difference that Alan notes.


I read that, and then had a seizure.
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#351348 - 07/03/11 10:03 AM Re: Upstairs bonus room: Slanted ceilings [Re: Da_Gimp_Pimp]
MarkSJohnson Online   happy
shareholder in the making

Registered: 09/27/04
Posts: 10665
Loc: Central NH
Well, duuuuh.

We ALL have seizures after reading JohnK's posts! smile
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#351350 - 07/03/11 10:20 AM Re: Upstairs bonus room: Slanted ceilings [Re: MarkSJohnson]
St_PatGuy Offline
axiomite

Registered: 03/07/05
Posts: 7373
Loc: Glendale, Arizona
It's because of his flashy avatar.
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#351353 - 07/03/11 02:45 PM Re: Upstairs bonus room: Slanted ceilings [Re: Da_Gimp_Pimp]
BobKay Online   content
connoisseur

Registered: 03/23/10
Posts: 2962
Loc: Massachusetts Badlands
Originally Posted By: Powertothepeople
Originally Posted By: JohnK
But to put some numbers to Alan's comment, a typically sized and furnished home room has an R60 reverberation time of around a half-second. R60 is the usual standard applied and represents the time in seconds(thousands for Mark's room)for the sound level to diminish 60dB after it's stopped playing. 60dB is used because it's about the difference between the loudest orchestral peaks around 100dB and room background noise levels around 40db. 60dB is therefore also about the widest practical dynamic range for a recording intended to be listened to at home.

In contrast to the half-second or so R60 at home, the finest concert halls have R60 times on the order of two seconds. Hence the difference that Alan notes.


I read that, and then had a seizure.


Are you implying a correlation? If so, you may just have forgotten your mid-day diazepam, 'cause you were too sh'faced to remember.
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#351358 - 07/03/11 04:37 PM Re: Upstairs bonus room: Slanted ceilings [Re: BobKay]
Da_Gimp_Pimp Offline
connoisseur

Registered: 06/23/07
Posts: 3972
Loc: Sitting down somewhere
laugh laugh

Off to my drug supply I go... You should be a pharmacist, Bob.
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#351382 - 07/04/11 09:25 AM Re: Upstairs bonus room: Slanted ceilings [Re: Da_Gimp_Pimp]
BobKay Online   content
connoisseur

Registered: 03/23/10
Posts: 2962
Loc: Massachusetts Badlands
Originally Posted By: Powertothepeople
laugh laugh

Off to my drug supply I go... You should be a pharmacist, Bob.


I am an apothecarian.
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