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Posted by spamme0 on October 27, 2009, 1:02 pm
.p.jm.@see_my_sig_for_address.com wrote:
show/hide quoted text
> wrote:
>
>>>>> And the total noise is reduced by about 1dBC.
>>>> Oh ! dbC, now, is it ? Aren't we the fine ones ? Too proud
>>>> to use the old dbA weight, are we ? :-)
>> Pride has nothing to do with it. People who read, thought about and
>> understood
>> the problem statement would probably understand that the A-curve
>> significantly suppresses the low frequencies where the problem lies.
>> If I had A-weighted ears, I wouldn't have a problem.
>> But, just for you, I put up a webpage:
>> http://spamme0.netii.net/Noise.html
>
> "You see this page, because the system administrator of 000webhost.com
> is currently checking this website for malicious content. This
> redirect will be removed once we will finish manually checking all
> files on this account."
>
> Who the fuck hosts your website, the UN's HRC ? Perhaps
> Canada's version of same ?
>
>> There are spectral plots of the noise and even an mp3 of the sound.
>> You can analyze it with any weighting you choose.
>> Hope the link works. Given the amount of animosity in the group,
>> I didn't want to expose my real isp web address.
>
> I see you missed the signifigance of the Monty Python HTML
> tags ..... why am I not suprised ?
>
>
>>> Hmmmm, didn't I suggest almost exactly the same thing, in the original
>>> thread?
>>> Angle iron, eh??????
>>> Didn't I say that a "duct" thick enough and heavy enough would guarantee
>>> quiet?
>
> If yuo did, then you are a fool, and wrong again.
>
>
>
OK, try this one
http://nm7u.tripod.com/homepage/Noise.html throwaway websites are not always reliable.
mike
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Posted by Steve on October 27, 2009, 3:20 pm
show/hide quoted text
> .p.jm.@see_my_sig_for_address.com wrote:
>> wrote:
>>>>>> And the total noise is reduced by about 1dBC.
>>>>> Oh ! dbC, now, is it ? Aren't we the fine ones ? Too proud
>>>>> to use the old dbA weight, are we ? :-)
>>> Pride has nothing to do with it. People who read, thought about and
>>> understood
>>> the problem statement would probably understand that the A-curve
>>> significantly suppresses the low frequencies where the problem lies.
>>> If I had A-weighted ears, I wouldn't have a problem.
>>> But, just for you, I put up a webpage:
>>> http://spamme0.netii.net/Noise.html
>> "You see this page, because the system administrator of 000webhost.com
>> is currently checking this website for malicious content. This
>> redirect will be removed once we will finish manually checking all
>> files on this account."
>> Who the fuck hosts your website, the UN's HRC ? Perhaps
>> Canada's version of same ?
>>> There are spectral plots of the noise and even an mp3 of the sound.
>>> You can analyze it with any weighting you choose.
>>> Hope the link works. Given the amount of animosity in the group,
>>> I didn't want to expose my real isp web address.
>> I see you missed the signifigance of the Monty Python HTML
>> tags ..... why am I not suprised ?
>>>> Hmmmm, didn't I suggest almost exactly the same thing, in the original
>>>> thread?
>>>> Angle iron, eh??????
>>>> Didn't I say that a "duct" thick enough and heavy enough would
>>>> guarantee quiet?
>> If yuo did, then you are a fool, and wrong again.
> OK, try this one
> http://nm7u.tripod.com/homepage/Noise.html
> throwaway websites are not always reliable.
> mike
Yup... air noise because of undersized RA ductwork because it wasn't done
right to begin with. The blower noise is being transmitted through the duct
and also the joists that the furnace is sitting on.
Correct the ductwork issues like I told you, isolate the furnace so its not
sitting on the joists(either hang it, or use isolation pads), and in
addition, add a vibration isolation boot between the new RA duct and the
furnace.
No its not gonna be free. your can either correct it as I told you or you
can live with it.... there is no bandaid.
|
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Posted by Tony Hwang on October 28, 2009, 12:30 am
Steve wrote:
show/hide quoted text
>> .p.jm.@see_my_sig_for_address.com wrote:
>>> wrote:
>>>>>>> And the total noise is reduced by about 1dBC.
>>>>>> Oh ! dbC, now, is it ? Aren't we the fine ones ? Too proud
>>>>>> to use the old dbA weight, are we ? :-)
>>>> Pride has nothing to do with it. People who read, thought about and
>>>> understood
>>>> the problem statement would probably understand that the A-curve
>>>> significantly suppresses the low frequencies where the problem lies.
>>>> If I had A-weighted ears, I wouldn't have a problem.
>>>> But, just for you, I put up a webpage:
>>>> http://spamme0.netii.net/Noise.html
>>> "You see this page, because the system administrator of 000webhost.com
>>> is currently checking this website for malicious content. This
>>> redirect will be removed once we will finish manually checking all
>>> files on this account."
>>> Who the fuck hosts your website, the UN's HRC ? Perhaps
>>> Canada's version of same ?
>>>> There are spectral plots of the noise and even an mp3 of the sound.
>>>> You can analyze it with any weighting you choose.
>>>> Hope the link works. Given the amount of animosity in the group,
>>>> I didn't want to expose my real isp web address.
>>> I see you missed the signifigance of the Monty Python HTML
>>> tags ..... why am I not suprised ?
>>>>> Hmmmm, didn't I suggest almost exactly the same thing, in the original
>>>>> thread?
>>>>> Angle iron, eh??????
>>>>> Didn't I say that a "duct" thick enough and heavy enough would
>>>>> guarantee quiet?
>>> If yuo did, then you are a fool, and wrong again.
>> OK, try this one
>> http://nm7u.tripod.com/homepage/Noise.html
>> throwaway websites are not always reliable.
>> mike
>
> Yup... air noise because of undersized RA ductwork because it wasn't done
> right to begin with. The blower noise is being transmitted through the duct
> and also the joists that the furnace is sitting on.
>
> Correct the ductwork issues like I told you, isolate the furnace so its not
> sitting on the joists(either hang it, or use isolation pads), and in
> addition, add a vibration isolation boot between the new RA duct and the
> furnace.
>
> No its not gonna be free. your can either correct it as I told you or you
> can live with it.... there is no bandaid.
>
>
Hi,
I wonder what the noise level is in db measured with sound(noise) level
meter???? Is the reading in danger zone to damage hearing for long term
exposure?
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Posted by Noon-Air on October 30, 2009, 11:12 am
show/hide quoted text
> Steve wrote:
>>> .p.jm.@see_my_sig_for_address.com wrote:
>>>> wrote:
>>>>>>>> And the total noise is reduced by about 1dBC.
>>>>>>> Oh ! dbC, now, is it ? Aren't we the fine ones ? Too proud
>>>>>>> to use the old dbA weight, are we ? :-)
>>>>> Pride has nothing to do with it. People who read, thought about and
>>>>> understood
>>>>> the problem statement would probably understand that the A-curve
>>>>> significantly suppresses the low frequencies where the problem lies.
>>>>> If I had A-weighted ears, I wouldn't have a problem.
>>>>> But, just for you, I put up a webpage:
>>>>> http://spamme0.netii.net/Noise.html
>>>> "You see this page, because the system administrator of 000webhost.com
>>>> is currently checking this website for malicious content. This
>>>> redirect will be removed once we will finish manually checking all
>>>> files on this account."
>>>> Who the fuck hosts your website, the UN's HRC ? Perhaps
>>>> Canada's version of same ?
>>>>> There are spectral plots of the noise and even an mp3 of the sound.
>>>>> You can analyze it with any weighting you choose.
>>>>> Hope the link works. Given the amount of animosity in the group,
>>>>> I didn't want to expose my real isp web address.
>>>> I see you missed the signifigance of the Monty Python HTML
>>>> tags ..... why am I not suprised ?
>>>>>> Hmmmm, didn't I suggest almost exactly the same thing, in the
>>>>>> original thread?
>>>>>> Angle iron, eh??????
>>>>>> Didn't I say that a "duct" thick enough and heavy enough would
>>>>>> guarantee quiet?
>>>> If yuo did, then you are a fool, and wrong again.
>>> OK, try this one
>>> http://nm7u.tripod.com/homepage/Noise.html
>>> throwaway websites are not always reliable.
>>> mike
>> Yup... air noise because of undersized RA ductwork because it wasn't done
>> right to begin with. The blower noise is being transmitted through the
>> duct and also the joists that the furnace is sitting on.
>> Correct the ductwork issues like I told you, isolate the furnace so its
>> not sitting on the joists(either hang it, or use isolation pads), and in
>> addition, add a vibration isolation boot between the new RA duct and the
>> furnace.
>> No its not gonna be free. your can either correct it as I told you or you
>> can live with it.... there is no bandaid.
> Hi,
> I wonder what the noise level is in db measured with sound(noise) level
> meter???? Is the reading in danger zone to damage hearing for long term
> exposure?
Maximum permissive noise levels can be found in 29CFR
|
|
Posted by spamme0 on October 28, 2009, 6:16 am
Steve wrote:
show/hide quoted text
>> .p.jm.@see_my_sig_for_address.com wrote:
>>> wrote:
>>>>>>> And the total noise is reduced by about 1dBC.
>>>>>> Oh ! dbC, now, is it ? Aren't we the fine ones ? Too proud
>>>>>> to use the old dbA weight, are we ? :-)
>>>> Pride has nothing to do with it. People who read, thought about and
>>>> understood
>>>> the problem statement would probably understand that the A-curve
>>>> significantly suppresses the low frequencies where the problem lies.
>>>> If I had A-weighted ears, I wouldn't have a problem.
>>>> But, just for you, I put up a webpage:
>>>> http://spamme0.netii.net/Noise.html
>>> "You see this page, because the system administrator of 000webhost.com
>>> is currently checking this website for malicious content. This
>>> redirect will be removed once we will finish manually checking all
>>> files on this account."
>>> Who the fuck hosts your website, the UN's HRC ? Perhaps
>>> Canada's version of same ?
>>>> There are spectral plots of the noise and even an mp3 of the sound.
>>>> You can analyze it with any weighting you choose.
>>>> Hope the link works. Given the amount of animosity in the group,
>>>> I didn't want to expose my real isp web address.
>>> I see you missed the signifigance of the Monty Python HTML
>>> tags ..... why am I not suprised ?
>>>>> Hmmmm, didn't I suggest almost exactly the same thing, in the original
>>>>> thread?
>>>>> Angle iron, eh??????
>>>>> Didn't I say that a "duct" thick enough and heavy enough would
>>>>> guarantee quiet?
>>> If yuo did, then you are a fool, and wrong again.
>> OK, try this one
>> http://nm7u.tripod.com/homepage/Noise.html
>> throwaway websites are not always reliable.
>> mike
>
> Yup... air noise because of undersized RA ductwork because it wasn't done
> right to begin with. The blower noise is being transmitted through the duct
> and also the joists that the furnace is sitting on.
>
> Correct the ductwork issues like I told you, isolate the furnace so its not
> sitting on the joists(either hang it, or use isolation pads), and in
> addition, add a vibration isolation boot between the new RA duct and the
> furnace.
>
> No its not gonna be free. your can either correct it as I told you or you
> can live with it.... there is no bandaid.
>
>
To the ONE person in this newsgroup who replied with TWO, count 'em TWO
lines of text pointing me to relevant technical information...
THANK YOU VERY MUCH.
To those of you who insist that a noise problem is always an "undersized
duct problem"...in spite of experiments demonstrating that it
was NOT air noise...well...NO THANK YOU VERY MUCH!!
Contractor came out today. This dumb ol EE told him what to do.
He disregarded his work order and did what I asked. The system is now
as quiet as the proverbial church mouse.
To those of you who just like to bitch...have at each other...I'm outa here.
mike
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>
>>>>> And the total noise is reduced by about 1dBC.
>>>> Oh ! dbC, now, is it ? Aren't we the fine ones ? Too proud
>>>> to use the old dbA weight, are we ? :-)
>> Pride has nothing to do with it. People who read, thought about and
>> understood
>> the problem statement would probably understand that the A-curve
>> significantly suppresses the low frequencies where the problem lies.
>> If I had A-weighted ears, I wouldn't have a problem.
>> But, just for you, I put up a webpage:
>> http://spamme0.netii.net/Noise.html
>
> "You see this page, because the system administrator of 000webhost.com
> is currently checking this website for malicious content. This
> redirect will be removed once we will finish manually checking all
> files on this account."
>
> Who the fuck hosts your website, the UN's HRC ? Perhaps
> Canada's version of same ?
>
>> There are spectral plots of the noise and even an mp3 of the sound.
>> You can analyze it with any weighting you choose.
>> Hope the link works. Given the amount of animosity in the group,
>> I didn't want to expose my real isp web address.
>
> I see you missed the signifigance of the Monty Python HTML
> tags ..... why am I not suprised ?
>
>
>>> Hmmmm, didn't I suggest almost exactly the same thing, in the original
>>> thread?
>>> Angle iron, eh??????
>>> Didn't I say that a "duct" thick enough and heavy enough would guarantee
>>> quiet?
>
> If yuo did, then you are a fool, and wrong again.
>
>
>