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16mm camera barney question. Let's shut up this beast!


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#1 Vadim Trofymenko

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Posted 15 January 2013 - 10:45 AM

Have a camera which loves to SPEAK loud!
Did a test today with a decibel meter, and I must admit that I was a little bit disappointed. Here are results:

Loaded with 400' magazine and film:

70db right next to the camera.
42db 15 feet away.

Loaded with 100' magazine and film:
56db right next to the camera.
41db 15 feet away.

Tried to record a dialogue and see if I can remove noise in post = nope.

Motor is very quite, noise is coming from the magazines and film.
Any ideas on how to make a camera barney?

Edited by Vadim Trofymenko, 15 January 2013 - 10:46 AM.

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#2 Brian Drysdale

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Posted 15 January 2013 - 11:37 AM

I don't know which camera you're using, but you can make a barney out of foam and plastic cloth. However, I don't think you'll reduce that noise figure by more than 6dbs. It sounds rather like it needs a blimp, which they used to make for cameras like the Arri 16ST. http://owyheesound.c...ex-16-blimp.php

I once made a blimp for a Bolex using chipboard. It wasn't too bad, although it was pretty large - sort of a bit larger than 35mm sync camera size.
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#3 Vadim Trofymenko

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Posted 15 January 2013 - 11:48 AM

I need something lightweight that really works. Anybody tried using this self adhesive foam?
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#4 Adrian Sierkowski

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Posted 15 January 2013 - 01:03 PM

One of the problems I think you'll find is that a good amount of noise is going to come out from where the lens is.. which just so happens to need a pretty clear path to form an image. This is why, on older cameras like the BLs, they blimped the lenses as well. I had a nice barney from Custom Upholster for my 2M which didn't make it that substantially quiet; but knocked her down enough to at least be able to get passable audio with camera noise you could-- in theory-- hide in the room-tone.
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#5 Vadim Trofymenko

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Posted 15 January 2013 - 01:08 PM

Maybe there is some secret workflow I don't know about?
Here is mine: Shoot on 16mm, shoot audio on tascam dr-40 with a shotgun mic, sync audio and video in Adobe system, output.

Share yours.
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#6 Zac Fettig

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Posted 15 January 2013 - 01:27 PM

You've got 2 choices.

1. Shoot on a blimped or self-blimped camera with a sync motor. Record sync sound.

2. Shoot MOS, and ADR it afterwards.
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#7 Brian Drysdale

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Posted 15 January 2013 - 03:09 PM

I need something lightweight that really works. Anybody tried using this self adhesive foam?


We also made a barney for a Bolex, however, you couldn't film too close. I'd go for the foam being at least 3cm thick, the foam for my Aaton's barney is at least one centimetre inside leather. I wouldn't consider anything less than that. .
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#8 Jean-Louis Seguin

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Posted 15 January 2013 - 04:17 PM

A barney made of lead lined foam cuts down the noise considerably. It doesn't have to be that thick. Just google: "lead lined foam" for suppliers.

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#9 Brian Drysdale

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Posted 15 January 2013 - 04:39 PM

True, there are specialised acoustic products, they seem to be intended for cutting down engine noise, but might be worth checking out.
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#10 Vadim Trofymenko

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Posted 15 January 2013 - 04:41 PM

A barney made of lead lined foam cuts down the noise considerably. It doesn't have to be that thick. Just google: "lead lined foam" for suppliers.

Jean-Louis


Can't find it online. What about soundproofing vinyl?
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#11 Vadim Trofymenko

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Posted 15 January 2013 - 04:45 PM

Those Acoustic Blankets seem good to me. Any thoughts?
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#12 Brian Drysdale

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Posted 15 January 2013 - 04:47 PM

You could check out these products.

http://www.noisekill...ng_products.asp

I suspect the lead lined will be better at the lower frequencies, you really need to compare the specs or test the products.

Edited by Brian Drysdale, 15 January 2013 - 04:48 PM.

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