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Author Topic: DIY Acoustics and Soundproofing Thread  (Read 245503 times)

Offline hamsterjamster

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Re: DIY Acoustics and Soundproofing Thread
« Reply #400 on: November 20, 2010, 12:49:39 AM »
you can clad 1/3 of your room (rear part) with the absorptive material..yung gitna you can have reflective materials..they can be angled para mas controlled ang tapos..90 degrees ang tapon eh..

Offline mikep

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Re: DIY Acoustics and Soundproofing Thread
« Reply #401 on: November 20, 2010, 09:53:22 PM »
I'm building my home theatre room

Plan for sound proofing:
 a) cover entire wall as (Wall + 1" air gap + 12mm gypsum + 2" 48kg density glass fiber + 9mm gypsum)

Plan for acoustic treatment"
 a) 4 - 2' x 8' bass traps made from 4" 48kg density glass fiber

For acoustic treatment, should I surround the inner wall, floor to ceiling, with 48kg density glass fiber + cloth or just make 2' x 4' panels and hang them at reflection points?


First, work on your room.  You have an almost square room.  You will have modal problems on the lower frequencies.

Second, what is the purpose of doing this ? Wall + 1" air gap + 12mm gypsum + 2" 48kg density glass fiber + 9mm gypsum?  What isolation are you trying to achieve?  STC?  Better if you use wall + 4" air gap + 2" 48 kg/m3 on metal frames + 2 pcs. 12 mm gypsum placed staggered.

Third, for home theaters, make your front absorptive, 2" glass fiber, front, sides and ceiling, diffusive at the rear.  Angle the walls especially the reflective sides to direct reflections to the rear.

There are subject matters of home theater acoustics in the net.  Just have the patience in looking for them.

PS, the 2 ft X 8 ft. 4" 48 kg/m3 glass fiber absorbers as LF absorbers or traps will not have much effect.  They do not go down to the absorption of frequencies that you want absorbed.  Better to use Helmholtz resonators or similar panel absorbers.

Good luck.
www.facebook.com/TRACKSAcoustics/Studios
guitars: gretsch 6122-1962; rickenbacker 330; epi elite casinos; gibson les paul standards, tribute, faded, double cut; gibson sg standards, faded; fender strats MIAs, MIJs, MIMs; fender tele MIAs, MIJs, MIMs; etc

Offline albert_n16

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Re: DIY Acoustics and Soundproofing Thread
« Reply #402 on: November 20, 2010, 10:58:48 PM »
Thanks Sir Mike for the response.

Initially I want to do a little soundproofing to keep the sound from going out and disturbing the neighbors while watching. But since the room is located far from them, I thought that there's no need for that.

When you say make the front absorptive you mean cover the whole front with 2" fiber glass? or a 2' x 4' x 2" panel will do? Should I do the same for the sides and the ceiling?

I still can choose either to hang 2' x 4' x 2" panels or to cover the walls with fiber glass.

Helmholtz resonators might be my next DIY after building the QRD Diffuser for the rear part of the room.

Offline mikep

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Re: DIY Acoustics and Soundproofing Thread
« Reply #403 on: November 22, 2010, 05:10:31 PM »
When you say make the front absorptive you mean cover the whole front with 2" fiber glass? or a 2' x 4' x 2" panel will do? Should I do the same for the sides and the ceiling?

I still can choose either to hang 2' x 4' x 2" panels or to cover the walls with fiber glass.


It needs to be computed, to get the right T60.  But, just for pwede na purposes, cover the entire front wall with 2" glass fiber, 2 panels of 4' X 8' per side of left and right walls, front area, with 1" glass fiber 48 kg/m3.  That can get your HT going until you decide what to put in the back and back side wall portions.  The back wall should be diffusive.  If you are building QRDs, build 4 pcs 4' X 8' for the rear portion of the walls.  It would be nice to put Helmholtz to control your LF energy.  You would need approximately 1.5 X 4' X 8' per side of back wall, or you can hang them in the ceiling.

Good luck.
www.facebook.com/TRACKSAcoustics/Studios
guitars: gretsch 6122-1962; rickenbacker 330; epi elite casinos; gibson les paul standards, tribute, faded, double cut; gibson sg standards, faded; fender strats MIAs, MIJs, MIMs; fender tele MIAs, MIJs, MIMs; etc

Offline albert_n16

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Re: DIY Acoustics and Soundproofing Thread
« Reply #404 on: November 22, 2010, 09:50:56 PM »
I definitely will start with this. I've done some research and learned to keep the back  side and rear wall diffusive. Very close to what you suggested.

Since the height of floor to ceiling is exactly 8', two 4' x 8' panels per side are just right to totally cover the front side of the walls with fiberglass.

Now, since the two front corners are fully covered with fiber glass. Will there be a significant effect on placing 2' x 8' 4" panels on the 4 corners of the room, wall to wall? Or will Helmholtz suffice to handle low frequency?

The current design for the ceiling is to fill it with 1" 48kg density fiberglass and cover it with perforated gypsum. The choice of gypsum is to allow some high frequency to be reflected as not to deaden the acoustic of the room.

Quote:
"If you are building QRDs, build 4 pcs 4' X 8' for the rear portion of the walls."

My rear wall is just 12' x 8' so 3 pieces of these will fill the entire rear wall.

Again, thanks for the replies from the members of this forum. I'm almost done with the design and ready to order fiber glass at Philippine Insulation in Sucat.


Offline daleee

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Re: DIY Acoustics and Soundproofing Thread
« Reply #405 on: November 24, 2010, 12:40:33 PM »


ano po yung tawag dun sa pa 2 panels na nasa likod ng drumset at para san un? Thanks!

Offline mikep

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Re: DIY Acoustics and Soundproofing Thread
« Reply #406 on: November 24, 2010, 07:13:19 PM »
I can remember what I placed in those, but the one next to it is a polycylindrical diffuser.  Those panels are either wide band absorbers or low frequency traps.

FWIW
www.facebook.com/TRACKSAcoustics/Studios
guitars: gretsch 6122-1962; rickenbacker 330; epi elite casinos; gibson les paul standards, tribute, faded, double cut; gibson sg standards, faded; fender strats MIAs, MIJs, MIMs; fender tele MIAs, MIJs, MIMs; etc

Offline Silaw

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Re: DIY Acoustics and Soundproofing Thread
« Reply #407 on: December 01, 2010, 08:46:00 PM »
hi. first-timer here in the acoustics subforums.

have backread almost all the posts in this thread, and followed up on leads. planning to build a small studio, you see, and so i went on the search for rockwool / mineral fiber. here's my results:


1. went to wilcon ali mall and had them ask the main branch if they carried rockwool (i also used the terms mineral wool, mineral fiber, fiber glass rolls/batting). they didn't carry any of those; apparently what they have is insulite (foam in between two aluminum-foil surfaces, sold in rolls). 15mm is the thickest they had, and i can lift a 1 x 25m roll of that with my hand and foot, so that's a no-go.

2. called up mc home depot in ortigas and asked for the same thing. same thing happens; although the guy also offered acoustic boards when i told him what i was going to use the insulation for. an 8-piece pack of 2x4ft acoustic boards is around 1200.

3. ace hardware and other hardware stores also just carry this aluminum-foam sandwich insulation. none of the fiber glass / rockwool stuff.


so can anybody help me out here? why is rockwool so hard to find? where do i find rockwool or fiberglass, and how much do they currently cost?
also, are there any significant differences between same-density rockwool sold in blocks and rolled-up rockwool (assuming this thing exists)?


also, extra tips? here's going to be my setup (my primary goal at this point is sound proofing, not acoustic treatment):

floor area: 16x13ft
ceiling: will be lowered to 8ft from 9ft, same treatment as walls
walls: 1ft chb wall, 4" air gap+metal studs, rockwool or fiberglass (whatever i can get my hands on), gypsum boards
door: was thinking of double solid wooden doors, rubber-sealed on all edges. but i'd settle for a single door if it works.
floor: no idea, help? for sure it's going to be carpeted

Could I have been anyone other than me?
Could I have been anyone?

Offline daleee

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Re: DIY Acoustics and Soundproofing Thread
« Reply #408 on: December 02, 2010, 10:20:19 AM »
How about this:


What do you call those panels behind the drummer? What does it do? And what is its effect to whoever is inside the soudbooth especially if drums are inside the soundbooth?

Offline skin

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Re: DIY Acoustics and Soundproofing Thread
« Reply #409 on: December 02, 2010, 11:04:36 AM »
hi. first-timer here in the acoustics subforums.

have backread almost all the posts in this thread, and followed up on leads. planning to build a small studio, you see, and so i went on the search for rockwool / mineral fiber. here's my results:


1. went to wilcon ali mall and had them ask the main branch if they carried rockwool (i also used the terms mineral wool, mineral fiber, fiber glass rolls/batting). they didn't carry any of those; apparently what they have is insulite (foam in between two aluminum-foil surfaces, sold in rolls). 15mm is the thickest they had, and i can lift a 1 x 25m roll of that with my hand and foot, so that's a no-go.

2. called up mc home depot in ortigas and asked for the same thing. same thing happens; although the guy also offered acoustic boards when i told him what i was going to use the insulation for. an 8-piece pack of 2x4ft acoustic boards is around 1200.

3. ace hardware and other hardware stores also just carry this aluminum-foam sandwich insulation. none of the fiber glass / rockwool stuff.


so can anybody help me out here? why is rockwool so hard to find? where do i find rockwool or fiberglass, and how much do they currently cost?
also, are there any significant differences between same-density rockwool sold in blocks and rolled-up rockwool (assuming this thing exists)?


also, extra tips? here's going to be my setup (my primary goal at this point is sound proofing, not acoustic treatment):

floor area: 16x13ft
ceiling: will be lowered to 8ft from 9ft, same treatment as walls
walls: 1ft chb wall, 4" air gap+metal studs, rockwool or fiberglass (whatever i can get my hands on), gypsum boards
door: was thinking of double solid wooden doors, rubber-sealed on all edges. but i'd settle for a single door if it works.
floor: no idea, help? for sure it's going to be carpeted



Call these numbers 9074068, 7823046 / 3576065.  They might have what you need.

Offline mikep

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Re: DIY Acoustics and Soundproofing Thread
« Reply #410 on: December 03, 2010, 01:47:16 AM »
How about this:


What do you call those panels behind the drummer? What does it do? And what is its effect to whoever is inside the soudbooth especially if drums are inside the soundbooth?

Those are mid band absorbers built in a form of gobos.  They are placed at the back to contain the sound and deaden the drum sound a bit.  In a big room, you normally would need gobos to contain the sound and make it less reverberant.  That way your sound, drums, etc., will be more dry with the mics picking up less of the room sound.
www.facebook.com/TRACKSAcoustics/Studios
guitars: gretsch 6122-1962; rickenbacker 330; epi elite casinos; gibson les paul standards, tribute, faded, double cut; gibson sg standards, faded; fender strats MIAs, MIJs, MIMs; fender tele MIAs, MIJs, MIMs; etc

Offline peeves24

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Re: DIY Acoustics and Soundproofing Thread
« Reply #411 on: December 31, 2010, 10:54:04 AM »
saan kaya nakakabili ng 1/2" neoprene rubber?

gagamitin ko lang sa DIY sway brace

Offline peeves24

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Re: DIY Acoustics and Soundproofing Thread
« Reply #412 on: January 25, 2011, 09:08:50 AM »
my home studio build starts today





this is the actual space with the new concrete roof deck


Offline pmack

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Re: DIY Acoustics and Soundproofing Thread
« Reply #413 on: January 26, 2011, 09:26:15 AM »
floating floor din yan pards?

Offline peeves24

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Re: DIY Acoustics and Soundproofing Thread
« Reply #414 on: January 26, 2011, 09:24:08 PM »
hindi pre. concrete slab na naman yung flooring ko. wala na rin budget para patibag pa yun

Offline peeves24

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Re: DIY Acoustics and Soundproofing Thread
« Reply #415 on: January 28, 2011, 10:55:00 AM »


sir mikep nung nakapasok sa studio na to parang walang sound proofing elements sa walls at ceiling. nakita ko puro acoustic treatment lang at ok naman yung isolation. meron po ba kayong nagawang measurement na stc rating nitong room na to? how much noise is attenuated if you are on the lobby when a band is playing?

Offline killikillers

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Re: DIY Acoustics and Soundproofing Thread
« Reply #416 on: February 07, 2011, 12:00:13 PM »
i need help on soundproofing my room please  :-(
posted my reply on pinoydrums

http://talk.philmusic.com/board/index.php/topic,17630.75.html

Offline mikep

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Re: DIY Acoustics and Soundproofing Thread
« Reply #417 on: February 09, 2011, 07:02:38 PM »
sir mikep nung nakapasok sa studio na to parang walang sound proofing elements sa walls at ceiling. nakita ko puro acoustic treatment lang at ok naman yung isolation. meron po ba kayong nagawang measurement na stc rating nitong room na to? how much noise is attenuated if you are on the lobby when a band is playing?
The sound proofing elements are inside the walls.  These is comprised of various sandwiches of gypsum boards, metal studs, cement boards and glass fiber insulation.  The walls have an STC of greater than 55 so minimal sound can be heard outside even though a band is rehearsing.

Sorry for the late reply.  Oftentimes, I cannot access Philmusic.
www.facebook.com/TRACKSAcoustics/Studios
guitars: gretsch 6122-1962; rickenbacker 330; epi elite casinos; gibson les paul standards, tribute, faded, double cut; gibson sg standards, faded; fender strats MIAs, MIJs, MIMs; fender tele MIAs, MIJs, MIMs; etc

Offline peeves24

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Re: DIY Acoustics and Soundproofing Thread
« Reply #418 on: February 11, 2011, 06:47:24 AM »
thanks sir mike! akala ko walang gypsum sa walls. i should've looked closer  :-D

by the way, are there any other suppliers of isomax clips or rsic-1 clips here locally? i checked out basic machinery already and they do sell isomax clips but i dont think i can afford their price quote which if summed, would cost more than all my gypsum, light steel framing and fg blankets combined.

im all set to get rsic-1 clips online, i just want to do a last minute check.



i thought that this might be interesting to others who want to put functional sliding windows on their studios. may ginamit ako ng pvc windows na nabibili sa wilcon/home depot at mukang ok naman yung isolation lalo na kung 2 windows ang ikakabit mo. eto yung simple test na ginawa ko para macheck yung noise reduction na galing sa kick drum - i documented a 22db reduction. konting modification lang sa window na to, like replacing the regular glass with thicker laminated glass, e malaki na rin sigurong improvement. i'll buy another window and do the mods this saturday.


Offline I3one_Head

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Re: DIY Acoustics and Soundproofing Thread
« Reply #419 on: March 10, 2011, 07:20:23 PM »
Mga Boss pacheck nga kung uubra ang plano ko. I'm planning to build a studio, Concrete floor at isa lang concrete wall. The other sides would be Hardiflex na lang, lalagyan pa ng foam dun sa gitna? (sandwiched yung foam). I don't care much about the acoustics inside, ang habol ko is to soundproof para hindi makabulahaw sa kapitbahay. So mglalagay parin ako nung puzzlemat sa floor at carpeted pa. tapos yung walls lalagyan ko rin ng foam. Masoundproof kaya yun? Tight budget e. 10-15k lang kaya ko for the materials + labor. thanks!

Offline skin

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Re: DIY Acoustics and Soundproofing Thread
« Reply #420 on: March 11, 2011, 11:13:55 AM »
Mga Boss pacheck nga kung uubra ang plano ko. I'm planning to build a studio, Concrete floor at isa lang concrete wall. The other sides would be Hardiflex na lang, lalagyan pa ng foam dun sa gitna? (sandwiched yung foam). I don't care much about the acoustics inside, ang habol ko is to soundproof para hindi makabulahaw sa kapitbahay. So mglalagay parin ako nung puzzlemat sa floor at carpeted pa. tapos yung walls lalagyan ko rin ng foam. Masoundproof kaya yun? Tight budget e. 10-15k lang kaya ko for the materials + labor. thanks!

Kailangan room within a room para soundproof.

Offline h0tb0x

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Re: DIY Acoustics and Soundproofing Thread
« Reply #421 on: April 04, 2011, 10:33:29 AM »
Hello mga sir! tanong ko lang po, balak ko kasi sana magtayo ng maliit na studio para praktisan ng banda, magkano kaya aabutin yung pag soundproof dito?? pwede nyo ba ako bigyan ng idea sa price ? salamat ng marami mga sir!
« Last Edit: April 04, 2011, 11:19:18 AM by h0tb0x »

Offline bulok

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Re: DIY Acoustics and Soundproofing Thread
« Reply #422 on: June 10, 2011, 12:58:12 PM »
anong materials ang pwede kong ilagay sa ceiling para pang sound proof? ply wood lang kasi yung kisame at ano yung pwede ko gawin para matanggal ang echo? yung mga materials na alam nyo na madali lang makita sa hardware at mura sana.. my ganun ba para sa problem ko? 

Offline skin

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Re: DIY Acoustics and Soundproofing Thread
« Reply #423 on: June 10, 2011, 03:13:32 PM »
anong materials ang pwede kong ilagay sa ceiling para pang sound proof? ply wood lang kasi yung kisame at ano yung pwede ko gawin para matanggal ang echo? yung mga materials na alam nyo na madali lang makita sa hardware at mura sana.. my ganun ba para sa problem ko? 

Kung soundproof, kailangan semento ceiling mo.

For the echo, puede na thick curtains.  Pero wala yun sa hardware.

Offline bulok

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Re: DIY Acoustics and Soundproofing Thread
« Reply #424 on: June 11, 2011, 01:04:40 AM »
Kung soundproof, kailangan semento ceiling mo.

For the echo, puede na thick curtains.  Pero wala yun sa hardware.

ah.. ok madali lang pala sa echo
yung ceiling kase plywood lang, paanong remedyo gagawin ko dun? anong material ilalagay ko at paano installation?