SongCraft

The Blankets that Bat's suggested are good but they're really small. 

no, they are not.

they are 8 feet long, by 4 and a half feet wide.....

and they are designed SPECIFICALLY  for sound absorbtion, not for moving furniture.

and they are WAY more efficient than foam.
i know, i've tried both.

batsbrew

and they are designed SPECIFICALLY  for sound absorbtion, not for moving furniture.

and they are WAY more efficient than foam.
i know, i've tried both.

Sorta kinda, and sadly the web page for the product is the source of the confusion! I really wish vendors in this space would try to be more accurate!


The blanets that Bat is suggesting will provide isolation, or transmission loss, between adjoining spaces - and that's what they are designed to do. They probably won't provide a lot of absorption, except at very high frequencies, and absorption is not even specified... which makes sense.


There is a lot of confusion surrounding room treatment. The short version:


Room treatments can be divided into two basic categories - soundproofing (isolation or transmission loss) and room behavior, which includes absorption, diffusion, and reflection.


I'm not really clear on what the OP is trying to accomplish, but since Bat brought up those blankets let's tackle isolation first.


The goal is to prevent sound from entering, or leaving, the space. The ONLY solutions are mass (preferably a limp mass) and an airtight space. Since the later is rather impractical<G>, most folks go with mass. Adding mass to the walls won't be practical since the space is rented, but some mass can be added by using loaded vinyl sheets or loaded blankets - which the referenced product appears to be. Note that you need a LOT of mass to stop low frequency energy, but not too much for higher frequencies.


Some of the questions and comments suggest that the OP is looking to simply treat the room to make it more listenable.


This may not be as difficult as it first appears. Since the room is small it is not reverberant, which means that only the 'bad' reflections need to be treated. The size also limits the room modes that can build up, meaning there should be few low frequency bumps.


If room treatment is the goal I would suggest getting a lot more info on the blankets, since they will not absorb much (according to the published specifications anyway.) But if isolation is the goal they look like a great starting point!

batsbrew

SongCraft

The Blankets that Bat's suggested are good but they're really small. 

no, they are not.

they are 8 feet long, by 4 and a half feet wide.....

and they are designed SPECIFICALLY  for sound absorbtion, not for moving furniture.

and they are WAY more efficient than foam.
i know, i've tried both.

You stand corrected. I hope you will accept my apologies.   

Yes, I'm sure they are way more efficient than foam.  Besides, I would not suggest foam.  My preference is wool.  

Also, I always take it with a grain of salt when some companies advertise their products, usually they tend to exaggerate a little, not that I'm referring to the above mentioned product.  I'm just saying. 

The past week had been painful and restless for me, not being able to get enough sleep does not help. 
-

i own the audimute blankets.

i use them for sound control.

not isolation.

only mass will do that.


i offer my personal experience with the audimute blankets, and that is all.

they work, in an area like Rain's room, the best you can hope for, is to tame the acoustics inside the room.

SongCraft

You stand corrected. I hope you will accept my apologies.  

i think you mean 'I stand corrected'

heheh

i was correct to begin with.....

wst3

batsbrew

and they are designed SPECIFICALLY  for sound absorbtion, not for moving furniture.

and they are WAY more efficient than foam.
i know, i've tried both.

Sorta kinda, and sadly the web page for the product is the source of the confusion! I really wish vendors in this space would try to be more accurate!


The blanets that Bat is suggesting will provide isolation, or transmission loss, between adjoining spaces - and that's what they are designed to do. They probably won't provide a lot of absorption, except at very high frequencies, and absorption is not even specified... which makes sense.


There is a lot of confusion surrounding room treatment. The short version:


Room treatments can be divided into two basic categories - soundproofing (isolation or transmission loss) and room behavior, which includes absorption, diffusion, and reflection.


I'm not really clear on what the OP is trying to accomplish, but since Bat brought up those blankets let's tackle isolation first.


The goal is to prevent sound from entering, or leaving, the space. The ONLY solutions are mass (preferably a limp mass) and an airtight space. Since the later is rather impractical<G>, most folks go with mass. Adding mass to the walls won't be practical since the space is rented, but some mass can be added by using loaded vinyl sheets or loaded blankets - which the referenced product appears to be. Note that you need a LOT of mass to stop low frequency energy, but not too much for higher frequencies.


Some of the questions and comments suggest that the OP is looking to simply treat the room to make it more listenable.


This may not be as difficult as it first appears. Since the room is small it is not reverberant, which means that only the 'bad' reflections need to be treated. The size also limits the room modes that can build up, meaning there should be few low frequency bumps.


If room treatment is the goal I would suggest getting a lot more info on the blankets, since they will not absorb much (according to the published specifications anyway.) But if isolation is the goal they look like a great starting point!

bill, i think you are confused.
the blankets are called "sound absorption blankets"

not "isolation blankets".

and here is some info, right off the link i provided:


Audimute Sound Absorption Sheets are not soundproofing blankets, but may indeed reduce volume levels if the space is properly treated. When hung throughout the room, these sheets absorb echoes, reverberation and noise reflection. [class="audimutegreen"][style="color: rgb(58, 77, 7); line-height: 13.1875px;"]Audimute Sound Absorption Sheets have been tested in an acoustic laboratory and have an impressive NRC rating of .70.





this is exactly my experience with this product.

batsbrew

wst3

Sorta kinda, and sadly the web page for the product is the source of the confusion! I really wish vendors in this space would try to be more accurate! 

The blanets that Bat is suggesting will provide isolation, or transmission loss, between adjoining spaces - and that's what they are designed to do. They probably won't provide a lot of absorption, except at very high frequencies, and absorption is not even specified... which makes sense.


There is a lot of confusion surrounding room treatment. The short version:


Room treatments can be divided into two basic categories - soundproofing (isolation or transmission loss) and room behavior, which includes absorption, diffusion, and reflection.


I'm not really clear on what the OP is trying to accomplish, but since Bat brought up those blankets let's tackle isolation first.


The goal is to prevent sound from entering, or leaving, the space. The ONLY solutions are mass (preferably a limp mass) and an airtight space. Since the later is rather impractical<G>, most folks go with mass. Adding mass to the walls won't be practical since the space is rented, but some mass can be added by using loaded vinyl sheets or loaded blankets - which the referenced product appears to be. Note that you need a LOT of mass to stop low frequency energy, but not too much for higher frequencies.


Some of the questions and comments suggest that the OP is looking to simply treat the room to make it more listenable.


This may not be as difficult as it first appears. Since the room is small it is not reverberant, which means that only the 'bad' reflections need to be treated. The size also limits the room modes that can build up, meaning there should be few low frequency bumps.


If room treatment is the goal I would suggest getting a lot more info on the blankets, since they will not absorb much (according to the published specifications anyway.) But if isolation is the goal they look like a great starting point!

wst3,

 i think you are confused.
the blankets are called "sound absorption blankets"

not "isolation blankets".

and here is some info, right off the link i provided:


Audimute Sound Absorption Sheets are not soundproofing blankets, but may indeed reduce volume levels if the space is properly treated. When hung throughout the room, these sheets absorb echoes, reverberation and noise reflection. [class="audimutegreen"][style="color: rgb(58, 77, 7); line-height: 13.1875px;"]Audimute Sound Absorption Sheets have been tested in an acoustic laboratory and have an impressive NRC rating of .70.





this is exactly my experience with this product.

Thanks guys.  

Already submitted the blanket idea to my wife and she dug it, so we may actually go for it earlier than I initially thoughts.

And to be clear, my intention is to treat acoustics, not to soundproof the place. I have the whole house to myself 8-10 hours a day and I work at very low volume most of the time, anyway. 

As I said, besides an occasional electric guitar track, I won't really record much audio, and nothing that loud. It's mostly a songwriting/midi recording/mixing environment. 

batsbrew

bill, i think you are confused.
the blankets are called "sound absorption blankets"

not "isolation blankets".

and here is some info, right off the link i provided:


Audimute Sound Absorption Sheets are not soundproofing blankets, but may indeed reduce volume levels if the space is properly treated. When hung throughout the room, these sheets absorb echoes, reverberation and noise reflection. [class="audimutegreen"][style="color: rgb(58, 77, 7); line-height: 13.1875px;"]Audimute Sound Absorption Sheets have been tested in an acoustic laboratory and have an impressive NRC rating of .70.

this is exactly my experience with this product.

That may well be, and I'm not debating that. 


What I am debating is a thoroughly useless, meaningless specification - an NRC of .70 is as meaningless as a frequency response of "20Hz to 20kHz". It tells me nothing! From their web site the product could just as easily be for isolation, and in fact that was my impression.

I've not used that product, so I'll leave now...

Just a thought. If you can get by with the blankets to reduce reflections/flutter echos then ARC could possibly be used to correct the nulls and peaks in the listening position. Not a perfect solution but possibly a Good bang for the Buck. It would really help if you could come up with a portable cloud for the desk. I spent a lot of money on room treatment and worked with an acoustician for a couple of weeks and still had issues in the 125-300hz range that we just could not tame without an extensive room modification. I added ARC and those issues were corrected, in the listing area, for a lot less than it would have cost to modify the room. I did need to hang a cloud using hooks screwed into the ceiling joists but the holes can easily be repaired with a little spackle and paint. Really happy to hear you have a new room to work with. I'm sure you'll make the best of it. Kind regards, Rick