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Terry C Terry C is offline
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Default Soundproof wall

I've been checking into ways to bolster sound-proofing in an existing
wall, and it occurred to me that the recording gurus on r.a.p. may
have experience doing this.

Basically, it's one large, long wall that was built by artists in an
NYC loft, so it's probably standard cheap sheetrock over studs. The
current wall is acoustically transparent, even to mid and high
frequencies.

Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?

Any suggested materials or construction techniques would be much
appreciated.

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Don Pearce[_3_] Don Pearce[_3_] is offline
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Default Soundproof wall

On Thu, 06 Oct 2016 06:39:36 -0400, Terry C wrote:

I've been checking into ways to bolster sound-proofing in an existing
wall, and it occurred to me that the recording gurus on r.a.p. may
have experience doing this.

Basically, it's one large, long wall that was built by artists in an
NYC loft, so it's probably standard cheap sheetrock over studs. The
current wall is acoustically transparent, even to mid and high
frequencies.

Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?

Any suggested materials or construction techniques would be much
appreciated.


You can buy heavyweight sheetrock for soundproofing. Put up a second
set of studs, not touching the ones already there.

d

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Phil Allison[_4_] Phil Allison[_4_] is offline
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Default Soundproof wall

Terry C wrote:

I've been checking into ways to bolster sound-proofing in an existing
wall, and it occurred to me that the recording gurus on r.a.p. may
have experience doing this.

Basically, it's one large, long wall that was built by artists in an
NYC loft, so it's probably standard cheap sheetrock over studs. The
current wall is acoustically transparent, even to mid and high
frequencies.

Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?

Any suggested materials or construction techniques would be much
appreciated.


** Then most effective soundproofing layer you can add is sheet lead - for example:

http://marsmetal.com/sheet-lead/sound-barriers/

Also effective is adding a solid brick wall alongside the plaster one.

If sound has another pathway between the two spaces, like via the roof cavity, then you are wasting your time doing either.

If you are really serious about this, get an expert to take a look at the situation - likely save you lotsa time and money on silly notions that will not work.


..... Phil

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John Williamson John Williamson is offline
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Default Soundproof wall

On 06/10/2016 11:39, Terry C wrote:
I've been checking into ways to bolster sound-proofing in an existing
wall, and it occurred to me that the recording gurus on r.a.p. may
have experience doing this.

Basically, it's one large, long wall that was built by artists in an
NYC loft, so it's probably standard cheap sheetrock over studs. The
current wall is acoustically transparent, even to mid and high
frequencies.

If it's that transparent to audio frequencies, you may end up having to
build a room within a room. There may then be problems with weight,
depending on the construction. If it's the roof area of an old
warehouse, they were built to keep the roof up, and not be used for storage.

As has been said, you can get heavy duty sheetrock, but even using that,
you will still get transmission through the floor structure. I've seen
sheetrock laminated with a rubber based damping layer, which is even
better, and putting rockwool between the old and new sheetrock layers
helps, too.

Is the floor concrete or wood? If the latter, you will have great
difficulty stopping sound transmission.

As Phil says, your best bet is to get a qualified person in who can also
advise you on any structural problems there may be.


--
Tciao for Now!

John.
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Klay Anderson[_2_] Klay Anderson[_2_] is offline
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Default Soundproof wall

On Thursday, October 6, 2016 at 4:39:56 AM UTC-6, Terry C wrote:
I've been checking into ways to bolster sound-proofing in an existing
wall, and it occurred to me that the recording gurus on r.a.p. may
have experience doing this.


Also see http://www.controlnoise.com/db-bloc-sound-barrier/

They also have tips and techniques.

Klay.


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JackA JackA is offline
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Default Soundproof wall

On Thursday, October 6, 2016 at 6:39:56 AM UTC-4, Terry C wrote:
I've been checking into ways to bolster sound-proofing in an existing
wall, and it occurred to me that the recording gurus on r.a.p. may
have experience doing this.

Basically, it's one large, long wall that was built by artists in an
NYC loft, so it's probably standard cheap sheetrock over studs. The
current wall is acoustically transparent, even to mid and high
frequencies.

Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?

Any suggested materials or construction techniques would be much
appreciated.


Lead, 1/4" Thick, I'm serious!

Jack
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JackA JackA is offline
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Default Soundproof wall

On Thursday, October 6, 2016 at 8:13:03 AM UTC-4, Phil Allison wrote:
Terry C wrote:

I've been checking into ways to bolster sound-proofing in an existing
wall, and it occurred to me that the recording gurus on r.a.p. may
have experience doing this.

Basically, it's one large, long wall that was built by artists in an
NYC loft, so it's probably standard cheap sheetrock over studs. The
current wall is acoustically transparent, even to mid and high
frequencies.

Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?

Any suggested materials or construction techniques would be much
appreciated.


** Then most effective soundproofing layer you can add is sheet lead - for example:

http://marsmetal.com/sheet-lead/sound-barriers/

Also effective is adding a solid brick wall alongside the plaster one.

If sound has another pathway between the two spaces, like via the roof cavity, then you are wasting your time doing either.

If you are really serious about this, get an expert to take a look at the situation - likely save you lotsa time and money on silly notions that will not work.


.... Phil


OMG, we agree!! :-)

Thanks.

Jack

No, was done in the president's office where I worked, Staff meetings held, but everyone outside knew was being said. Installed lead, and you can scream your lungs out inside, but silence on the outside.
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Scott Dorsey Scott Dorsey is offline
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Default Soundproof wall

Terry C wrote:
I've been checking into ways to bolster sound-proofing in an existing
wall, and it occurred to me that the recording gurus on r.a.p. may
have experience doing this.

Basically, it's one large, long wall that was built by artists in an
NYC loft, so it's probably standard cheap sheetrock over studs. The
current wall is acoustically transparent, even to mid and high
frequencies.

Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?


Walls don't really block sounds, they just diffract them. Adding more and
more mass by putting sheetrock on will reduce high frequencies by making the
wall heavier and more rigid so that sound does not make it vibrate so much.
However, this doesn't do much at low frequencies until you start getting into
very very thick concrete.

At low frequencies the solution is to float a room inside the room, which
is expensive but remarkably effective.

May I recommend the F. Alton Everest book on small studio acoustics?
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
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geoff geoff is offline
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Default Soundproof wall

On 7/10/2016 3:52 AM, JackA wrote:


No, was done in the president's office where I worked, Staff meetings
held, but everyone outside knew was being said. Installed lead, and
you can scream your lungs out inside, but silence on the outside.


I made a pair of LS3-5As out of MDF instead of birch ply, but lined the
inside with 1/8 lead sheet. Inert (but heavy) little f'ers.

There are specialist soundproofing grades of fibreglass(?) insulation
that could go between two parallel walls, or even inside a single, wall
cavity that could help. mainstream now to the point of available at
normal building supplies outlets.

For my studio I scored (v.cheap !) some supposedly boron-fibre material
that was not required for the local police training academy firing range.

geoff
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geoff geoff is offline
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Default Soundproof wall

On 7/10/2016 3:49 AM, JackA wrote:
On Thursday, October 6, 2016 at 6:39:56 AM UTC-4, Terry C wrote:
I've been checking into ways to bolster sound-proofing in an existing
wall, and it occurred to me that the recording gurus on r.a.p. may
have experience doing this.

Basically, it's one large, long wall that was built by artists in an
NYC loft, so it's probably standard cheap sheetrock over studs. The
current wall is acoustically transparent, even to mid and high
frequencies.

Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?

Any suggested materials or construction techniques would be much
appreciated.


Lead, 1/4" Thick, I'm serious!

Jack


In a loft ?

I see the headline "NYC building collapse".

geoff


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JackA JackA is offline
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Default Soundproof wall

On Thursday, October 6, 2016 at 3:02:42 PM UTC-4, geoff wrote:
On 7/10/2016 3:52 AM, JackA wrote:


No, was done in the president's office where I worked, Staff meetings
held, but everyone outside knew was being said. Installed lead, and
you can scream your lungs out inside, but silence on the outside.


I made a pair of LS3-5As out of MDF instead of birch ply, but lined the
inside with 1/8 lead sheet. Inert (but heavy) little f'ers.

There are specialist soundproofing grades of fibreglass(?) insulation
that could go between two parallel walls, or even inside a single, wall
cavity that could help. mainstream now to the point of available at
normal building supplies outlets.

For my studio I scored (v.cheap !) some supposedly boron-fibre material
that was not required for the local police training academy firing range.

geoff


Can't top you there, made speakers from 3/4" press-board, but no "studio".
I see the LS3-5As are like $700 used! Looks like you can purchase a copy of the box itself, maybe as a kit.
Me, I had a pair of Radio Shack (Realistic) small speakers, acoustic suspension, but for their small size, they sounded pretty nice, just a single 4" decent speaker!

Jack
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Phil Allison[_4_] Phil Allison[_4_] is offline
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Default Soundproof wall

JackA wrote:



Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?

Any suggested materials or construction techniques would be much
appreciated.


Lead, 1/4" Thick, I'm serious!



** Makes the room nuclear radiation proof too !!!

One idea to add weight and stiffness that should be easy for the OP to do himself is gluing ceramic tiles onto the offending wall.

Often bargain priced wall and floor tiles available in limited quantities - the OP sounds like he needs a few hundred, 12 inch square tiles to cover his wall, plus a gallon or two of contact adhesive.




...... Phil













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gregz gregz is offline
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Default Soundproof wall

Terry C wrote:
I've been checking into ways to bolster sound-proofing in an existing
wall, and it occurred to me that the recording gurus on r.a.p. may
have experience doing this.

Basically, it's one large, long wall that was built by artists in an
NYC loft, so it's probably standard cheap sheetrock over studs. The
current wall is acoustically transparent, even to mid and high
frequencies.

Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?

Any suggested materials or construction techniques would be much
appreciated.


There is or was a heavy sheet rock designed for sound. That plus blown in
insulation. Better, install another isolated stud system.

Greg
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gregz gregz is offline
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Default Soundproof wall

Terry C wrote:
I've been checking into ways to bolster sound-proofing in an existing
wall, and it occurred to me that the recording gurus on r.a.p. may
have experience doing this.

Basically, it's one large, long wall that was built by artists in an
NYC loft, so it's probably standard cheap sheetrock over studs. The
current wall is acoustically transparent, even to mid and high
frequencies.

Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?

Any suggested materials or construction techniques would be much
appreciated.


http://www.acousticalsurfaces.com/so...soundbreak.htm

Greg
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JackA JackA is offline
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Default Soundproof wall

On Friday, October 7, 2016 at 12:30:57 AM UTC-4, Phil Allison wrote:
JackA wrote:



Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?

Any suggested materials or construction techniques would be much
appreciated.


Lead, 1/4" Thick, I'm serious!



** Makes the room nuclear radiation proof too !!!


That would come in handy, these days!!!


One idea to add weight and stiffness that should be easy for the OP to do himself is gluing ceramic tiles onto the offending wall.

Often bargain priced wall and floor tiles available in limited quantities - the OP sounds like he needs a few hundred, 12 inch square tiles to cover his wall, plus a gallon or two of contact adhesive.


Interesting!!

Does anyone remember the poor man's sound deadening, staple paper egg cartons to the wall or whatever? Just the shape helps curb sound reflecting.
Seem to recall, sound pressure must be absorbed and changed to heat!

Jack




..... Phil




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[email protected] makolber@yahoo.com is offline
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Default Soundproof wall

something to keep in mind re soundproofing

https://en.wikipedia.org/wiki/The_St...nightclub_fire

m
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Scott Dorsey Scott Dorsey is offline
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Default Soundproof wall

wrote:
something to keep in mind re soundproofing

https://en.wikipedia.org/wiki/The_St...nightclub_fire


Indeed, and it should be pointed out that what was done there was not only
unsafe but it really wasn't very effective either and only provided absorption
at the highest frequencies. This isn't soundproofing at all, but the crudest
possible acoustic treatment.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."
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gregz gregz is offline
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Default Soundproof wall

JackA wrote:
On Friday, October 7, 2016 at 12:30:57 AM UTC-4, Phil Allison wrote:
JackA wrote:



Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?

Any suggested materials or construction techniques would be much
appreciated.

Lead, 1/4" Thick, I'm serious!



** Makes the room nuclear radiation proof too !!!


That would come in handy, these days!!!


You can buy loaded vinyl. Heavy and probably expensive. I was cleaning out
an xray lab and saw a roll, looked like a floor mat. I went to pick it up,
must have been at least 60 lbs.

One idea to add weight and stiffness that should be easy for the OP to
do himself is gluing ceramic tiles onto the offending wall.

Often bargain priced wall and floor tiles available in limited
quantities - the OP sounds like he needs a few hundred, 12 inch square
tiles to cover his wall, plus a gallon or two of contact adhesive.


Interesting!!

Does anyone remember the poor man's sound deadening, staple paper egg
cartons to the wall or whatever? Just the shape helps curb sound reflecting.
Seem to recall, sound pressure must be absorbed and changed to heat!

Jack


Weight is usually the key. Egg carton will just scatter higher freqs.

Greg
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John Williamson John Williamson is offline
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Default Soundproof wall

On 10/10/2016 08:34, gregz wrote:
JackA wrote:
Does anyone remember the poor man's sound deadening, staple paper egg
cartons to the wall or whatever? Just the shape helps curb sound reflecting.
Seem to recall, sound pressure must be absorbed and changed to heat!

Jack


Weight is usually the key. Egg carton will just scatter higher freqs.

Useful for quick and temporary treatment in a small mobile situation
such as a caravan being used as the announcer's booth at a festival
radio station. ;-)

Lots of cushions scattered around were also helpful and gave the talent
somewhere comfy to lounge round while they were waiting to be interviewed.

Of course, nowadays, such stations use something like a converted horsebox.
--
Tciao for Now!

John.
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Phil Allison[_4_] Phil Allison[_4_] is offline
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Default Soundproof wall

G wrote:

Phil Allison wrote:


One idea to add weight and stiffness that should be easy for the OP to
do himself is gluing ceramic tiles onto the offending wall.

Often bargain priced wall and floor tiles available in limited
quantities - the OP sounds like he needs a few hundred, 12 inch square
tiles to cover his wall, plus a gallon or two of contact adhesive.




Weight is usually the key. Egg carton will just scatter higher freqs.



** A 30 foot long wall of sheetrock covered in floor tiles would weigh about 1500 lbs. Long as the floor can handle it, should be decent sound barrier.


..... Phil


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JackA JackA is offline
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Default Soundproof wall

On Monday, October 10, 2016 at 3:34:52 AM UTC-4, G wrote:
JackA wrote:
On Friday, October 7, 2016 at 12:30:57 AM UTC-4, Phil Allison wrote:
JackA wrote:



Is there any effective way to provide better soundproofing by
installing a second layer of sheetrock with better sound blocking
qualities?

Any suggested materials or construction techniques would be much
appreciated.

Lead, 1/4" Thick, I'm serious!



** Makes the room nuclear radiation proof too !!!


That would come in handy, these days!!!


You can buy loaded vinyl. Heavy and probably expensive. I was cleaning out
an xray lab and saw a roll, looked like a floor mat. I went to pick it up,
must have been at least 60 lbs.


Yikes!!

One idea to add weight and stiffness that should be easy for the OP to
do himself is gluing ceramic tiles onto the offending wall.

Often bargain priced wall and floor tiles available in limited
quantities - the OP sounds like he needs a few hundred, 12 inch square
tiles to cover his wall, plus a gallon or two of contact adhesive.


Interesting!!

Does anyone remember the poor man's sound deadening, staple paper egg
cartons to the wall or whatever? Just the shape helps curb sound reflecting.
Seem to recall, sound pressure must be absorbed and changed to heat!

Jack


Weight is usually the key. Egg carton will just scatter higher freqs.


If it were are hard material, yes. Can't see how cardboard like material can reflect high frequencies. Besides, their shape is ideal. I'm talking old egg cartons, maybe they're now sold in metal containers to protect the free roaming chicken's gold!

Jack

Greg


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Scott Dorsey Scott Dorsey is offline
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John Williamson wrote:
On 10/10/2016 08:34, gregz wrote:
JackA wrote:
Does anyone remember the poor man's sound deadening, staple paper egg
cartons to the wall or whatever? Just the shape helps curb sound reflecting.
Seem to recall, sound pressure must be absorbed and changed to heat!


Weight is usually the key. Egg carton will just scatter higher freqs.

Useful for quick and temporary treatment in a small mobile situation
such as a caravan being used as the announcer's booth at a festival
radio station. ;-)


Not really. It won't even scatter high frequencies, to be honest.

Lots of cushions scattered around were also helpful and gave the talent
somewhere comfy to lounge round while they were waiting to be interviewed.


Now THAT makes more sense.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."
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