Comments?

[archive]

From: "Mucha, Kevin S (Kevin)" <kmucha@x???xx.xxxx
Date: Fri Dec 3, 1999 4:53 pm
Subject: Comments?

All-
I have sent Dan a few quick drawings (gifs) to upload to the site today as I
am curious for comments that anyone may have. I began describing my
scenario in part yesterday. This is a garage special. The structure is
wood framed, wood sided. I closed off the garage door through framing and
two layers of 3/4 plywood on the exterior. Inside I constructed a metal
stud frame completely detached (2" gap) from the existing structure using
roofing rubber as an isolation barrier between the walls and the floor. 6
inches of insulation went in and then the first layer of 5/8" gypsum. I
then used resilient channel and put up another layer of 5/8" on the walls
and 3/8" on the ceiling. The middle wall has rc on both sides and two
layers of 5/8" on the tracking side and one on the control room. The
original rafters (4) in the building spanned the width at the wall height of
9'. I removed these and put in a total of 10 doubled ties at a height of
ten and a half feet. My plans are to then attach either plywood or masonite
to the bottom of the ties with the cavity lined with 4" of 703 for a panel
resonator. I have some airplane noise to deal with and I think this will
further help as most of the noise is already reduced (thanks to Dan for some
tips on this in a r.a.p. thread). I also feel this will help against
boominess in the room due to it's limited dimensions. Finally, I will have
a polycylindrical diffuser behind the mix position and two bass traps
(rolled fiberglass in wire construction) in the two corners of the tracking
room. A wood floor will also be installed. I understand the dimensions are
no where near optimal but it's what I had to deal with. I have not yet
completed construction yet so I have not yet determined what other
acoustical treatment will be needed. Sorry for the lengthy post but I
admire the knowledge found in this group and welcome any comments.

Kev.

Kevin S. Mucha

Netcare Networking Services
Training Manager

Lucent Technologies

[archive]

From: "Mucha, Kevin S (Kevin)" <kmucha@x???xx.xxxx
Date: Fri Dec 3, 1999 5:13 pm
Subject: RE: Comments?

> From: "Mucha, Kevin S (Kevin)" <kmucha@l...>
>
<snip>-
< I have not yet completed construction yet so I have not yet
determined what other
> acoustical treatment will be needed. Sorry for the lengthy post but I
> admire the knowledge found in this group and welcome any comments.>
>
It seems I type faster than I think. (yet). damn.

[archive]

From: Dan Nelson <dprimary@x??????xxxxx.xxxx
Date: Fri Dec 3, 1999 5:35 pm
Subject: Re: Comments?

Kevin's files are in the file area now.

[archive]

From: Dan Nelson <dan@x???xx.xxxx
Date: Thu Dec 9, 1999 8:17 pm
Subject: Re: Comments?

Are you designing the bass traps something like tube traps. I've been
thinking of building something like them myself, out of the formed insulation
they use for chilled water and steam pipes. I believe this it what ASC uses in
the construction of tube traps.

Dan Nelson

[archive]

From: "Mucha, Kevin S (Kevin)" <kmucha@x???xx.xxxx
Date: Thu Dec 9, 1999 9:44 pm
Subject: RE: Comments?

Dan-
That's exactly what I was thinking for the tracking room. There's a couple
of designs out there but the one I was thinking was using fiberglass, heavy
wire fencing with plywood bases. Two 18" circular plywood bases with
another 14" base fastened and centered on top of each. Role the fence and
attach it to the inner base so you now have a spool. Wrap the fiberglass
around that and then another round of fence attached to the outer base.
Cover with burlap. I believe you can even make half of it a diffuser but
adding a thin layer of plastic to half a vertical side. I've heard of using
the pipe insulation but have never heard anyone talk about the results.
Please let us know how they work out as I am certainly curious.

Thanks,

Kevin S. Mucha

[archive]

From: Dan Nelson <dprimary@x??????xxxxx.xxxx
Date: Fri Dec 10, 1999 5:43 am
Subject: Re: Comments?

Can you point me to some of the designs? I believe ASC uses mass loaded vinyl
for the diffuser side of the tube trap.

Dan Nelson

[archive]

From: "Mucha, Kevin S (Kevin)" <kmucha@x???xx.xxxx
Date: Fri Dec 10, 1999 4:12 pm
Subject: RE: Comments?

Dan-
Mostly picked up designs off the Internet. Let me know do some looking and
I'll see what I can find.

Kevin S. Mucha

[archive]

From: "Anthony B. Kitson" <anthony@x???????xxxxxx.xxxx
Date: Fri Dec 10, 1999 4:46 pm
Subject: Re: Comments?

----- Original Message -----
From: Dan Nelson <dan@a...>
To: <acoustics@o...>
Sent: Friday, December 10, 1999 4:17 AM
Subject: Re: [acoustics] Comments?

> From: Dan Nelson <dan@a...>
>
>
> Are you designing the bass traps something like tube traps. I've been
> thinking of building something like them myself, out of the formed
insulation
> they use for chilled water and steam pipes. I believe this it what ASC
uses in
> the construction of tube traps.
>

And I can vouch for their effectiveness. In my recording room there are
three of these, crammed full of compressed down batt insulation, bout two
foot deep and going floor to ceiling. Put them in and listened as the bass
cleared out of the room and everything opened up nice and clear.
Recommended... and cheap too :)

Anthony B. Kitson BSEE AES
Pinnacle Recording Studio
www.pinnaclestudio.com