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Quiet, isolated mic arm?
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TheVoiceOfBob
14th Avenue


Joined: 05 Oct 2006
Posts: 1411
Location: Pittsburgher in the Carolinas

PostPosted: Mon May 12, 2008 10:04 am    Post subject: Reply with quote

In this case, is the noise coming from transmission of vibration through the floor into the stand, or caused from the stand vibrating as a reaction to the floor vibrating? I'm trying to decide if isolation is the best approach or perhaps the opposite.
One thing I have always done for speakers was to use spikes on the stands or on the base so that they aren't "hovering" above the floor sitting on the carpet.
The Mr. Obvious in me says isolate. The Outside the Box Guy in me wants to look at it another way.
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Mike Sommer
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Joined: 05 May 2008
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Location: Boss Angeles

PostPosted: Mon May 12, 2008 10:44 am    Post subject: Reply with quote

Deirdre wrote:
It's my C-1 that is picking up the cat scratching its neck in the living room.
The weighted mic stand I'm using picks up footfalls in the house, and it's isolated by closed-foam pad and a rug! I just need a better setup.

First tell kitty to hold off 'till mommy is done paying the bills. Smile

Foot falls or sub harmonics are very troublesome to get rid of.
The more direct mass your mic stand has touching the floor the more noise will transfer through the mic stand. So, less mass touching floor = less noise transfer.
Audiophiles use sound points or audio platforms to isolate unwanted sound for such gear as turntables and the like.
http://www.dedicatedaudio.com/isolation

You could also try a audio sandbox. Have a box big enough to hold a mic stand, put audio points on the bottom of the box. Fill with sand. Place a square of plywood on top of the sand (not toughing the sides of the box) and place the mic stand on top of that.

I can't say a better mic stand or arm will solve the problem. Even if you hung a mic boom arm from the ceiling, you will still get sound transfer. And if you attach a mic boom to a heavy desk, the desk could amplify the noise.
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TheVoiceOfBob
14th Avenue


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PostPosted: Mon May 12, 2008 10:54 am    Post subject: Reply with quote

So my idea of the spikes might not be so looney?
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Jon Morss
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PostPosted: Mon May 12, 2008 11:23 am    Post subject: Reply with quote

I just recently picked up a Rode PSA-1 Studio Boom Arm for my mic set-up and I have not noticed an increase in noise. But, after reading some of the comments, I'll have to have a closer listen and see if I am missing anything. When I attached the clamp to my desk I did place some felt between the clamp connections and the desk. I wonder if this helps?

http://www.bhphotovideo.com/c/product/484972-REG/Rode_PSA1_PSA_1_Studio_Boom_Arm.html
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Frank F
Fat, Old, and Sassy


Joined: 10 Nov 2004
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Location: Park City, Utah

PostPosted: Mon May 12, 2008 11:49 am    Post subject: Reply with quote

I bought a standard one inch thick floor covering rug/rubber pad. The three legged stand is placed on the pad (cost about $12.00 USD). The pre-described set-up isolates the mic stand so well I am able to do all my "Saturday Nite Races spots without one bit of unwanted noise.

Just a thought for you to ponder D.B.

Toodles

F2
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todd ellis
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Joined: 02 Jan 2007
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PostPosted: Mon May 12, 2008 11:55 am    Post subject: Reply with quote

Quote:
You could also try a audio sandbox.


just remember to empty it every now and then ...
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Diane Maggipinto
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PostPosted: Mon May 12, 2008 12:10 pm    Post subject: Reply with quote

mary, i adore that your DH was pivotal in your "eureka!" moment.

speaking of ankle weights
+
the cat scratching its neck in the other room ...

Gasp

i KID!
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ricevoice
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Joined: 28 Dec 2007
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PostPosted: Tue May 13, 2008 5:39 am    Post subject: Reply with quote

todd ellis wrote:
Quote:
You could also try a audio sandbox.


just remember to empty it every now and then ...



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Bruce
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PostPosted: Tue May 13, 2008 6:09 am    Post subject: Reply with quote

Of course you could build your next house on a concrete slab like we do and you couldn't even hear an elephant's footsteps through the floor. But of course we idiots in the West often put the air conditioning on the roof, the low rumble of which goes right into the mic, so summer narrations are done til it hits 90º in the room, then you take an AC break, and then swim back into the studio for more sauna time.

I swear I'm moving to cooler climes before long!

B
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ccpetersen
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Joined: 19 Sep 2007
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PostPosted: Tue May 13, 2008 7:32 am    Post subject: Reply with quote

We have several different mic stands and setups we've experimented with. For the "big" studio (complete mic/pre-amp/mixer chain) what works best for our room is a three-point mic stand on a rubber mat, and the mic is in a shock mount. This works well, and unless I smack the stand as I'm working, it's tough to hear any vibrations.

For my "desk" studio, I have a swing-arm with a shockmount for the mic. The swing-arm is screwed onto the desk using a C clamp that has rubber padding between it and the desk. Unless i smack the arm or the desk as I'm reading, I hear very little to no vibration.

CC
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Diane Maggipinto
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Joined: 03 Mar 2006
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PostPosted: Tue May 13, 2008 7:46 am    Post subject: Reply with quote

bruce, that is precisely how it goes for me in utah! early to rise and narrate, midday siesta in the high heat, nighttime musings on mic again.
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Frank F
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Joined: 10 Nov 2004
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PostPosted: Tue May 13, 2008 8:58 am    Post subject: Reply with quote

Trade ya Bruce... We had FOUR inches of snow yesterday. There is still nearly four feet of the stuff outside the house... Your choice.

Toodles

F2
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bobsouer
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PostPosted: Tue May 13, 2008 11:06 am    Post subject: Reply with quote

Frank,

I'll take the snow any day, or month for that matter. Heat you can have.
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ronphi
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Joined: 11 Sep 2006
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Location: Arlington, TX

PostPosted: Mon Jun 16, 2008 4:56 pm    Post subject: Reply with quote

I know it's not much but this is my little corner of the VO world. I just installed the mic arm today. Not a major purchase to be sure but I feel a little more professional now. I am also able to work the mic better than when I had about a 4" desk stand that I had to put on top of two equipment boxes to get to mouth height. It cleared up desk space and lets me see the copy on my computer screen without having to look around the boxes.

I know you gals and guys are already aware of the benefits but sometimes it's nice to get excited over the little things.

I got the arm from Yoda's link earlier in the thread and Bill Elder recommended it. It's a Q-Mic and was only a shade over $50 with shipping. The mic hanging behind the screen is a Rhode NT-1A.


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bobsouer
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PostPosted: Mon Jun 16, 2008 5:05 pm    Post subject: Reply with quote

Ron,

Very nice. Thanks for giving us a peek.
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