#1871083 - 01/11/08 08:03 PM
Air Conditioning Question
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hey_mavis
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Registered: 12/16/07
Posts: 29
Loc: Trinidad and Tobago
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So I have a noisy AC unit, what can I do about that? I have a one room studio and I pretty much only record vocals, so I turn off the AC for recording.
I am concerned however that the noise floor is a bit too high when it comes to mixing, is there a way to reduce the noise of the AC? Are there very quiet AC units available?
If I must I could buy and install an outside unit and build air ducts into the studio, but even with that, I am not sure how loud (or not) it would be.
thanks!
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#1871159 - 01/12/08 01:33 AM
Re: Air Conditioning Question
[Re: hey_mavis]
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bigearededdie
Senior Member
Registered: 01/11/06
Posts: 92
Loc: Spain
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I guess you have an external unit with an internal evaporator, right? If that is the case, which of the two units cause the noise?
Here in Spain Fujitsu sell ultraquiet wall evaporators (they still can be slightly heard though, and they aren't cheap). Other brands might have similar products too.
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#1871202 - 01/12/08 05:30 AM
Re: Air Conditioning Question
[Re: bigearededdie]
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hey_mavis
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Registered: 12/16/07
Posts: 29
Loc: Trinidad and Tobago
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I have a split unit by Peak I believe, the inner unit makes the noise.
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#1871771 - 01/13/08 06:06 AM
Re: Air Conditioning Question
[Re: hey_mavis]
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bigearededdie
Senior Member
Registered: 01/11/06
Posts: 92
Loc: Spain
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Well, I think the cheapest solution is to turn it off when you need to. But if I were in you situation and bored one day wothout knowing what to do, I try and work on it.
First I'd try and locate the vibrations in the machine if it has any and fix them. I once had a rattling noise with a splitter in my preious flat, so I opened it and fixed it with a hot melt glue gun (I was lucky it was easy).
Secondly, and this may sound ludicrous, but I would try and build a wooden box with rockwool or similar type insulation inside and with a folded air path. It should be designed to be hung on the wall and fit around the inner unit. That means more holes in the wall though, and a wierd looking biggish box on your wall. :-)
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#1875634 - 01/18/08 06:39 PM
Re: Air Conditioning Question
[Re: hey_mavis]
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Jazzman
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Registered: 08/15/01
Posts: 1409
Loc: ,,Hartland MI,USA
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One way would be to build a box with an insulated duct that goes to the top of the room, stay about 1'-0" from the top and add an insulation pad at the ceiling and make the pad twice the size of the duct opening and mount it to the ceiling over the duct opening. This should help with the noise issue. Since the cold air will fall back down from the duct there will be a chance for the air to mix in the room. Hot air at the ceiling space and cold air at the bottom. Cold air will fall. You should see a reduction in sound level.
For every turn in the duct the noise is cut down quite a bit. By having the insulation piece mounted to the ceiling, the sound will again hit the insulation pad and be reflected once more back down, reducing the noise again.
Is the A/C unit in the window or mounted in the wall?
Just a thought.
Jazzman
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#1875702 - 01/19/08 01:10 AM
Re: Air Conditioning Question
[Re: Jazzman]
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Rod Gervais
Senior Member
Registered: 10/08/03
Posts: 497
Loc: Central Village, CT
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Is the noise coming out of the ductwork itself - or out of the walls / ceiling?
i.e.: is it direct or flanking sound?
Rod
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