Audio from PA to camera?
I am filming a talent show and need to get the audio from the house PA into my camera. I don't know anything about PAs or the one I will be using. My camera has 2 xlr inputs, 1 of which is already dedicated to a condenser mic. Can I go wirelessly from the PA to my camera?
Any and all suggestions are appreciated! |
If the signal from the house audio system is compatable, or can be made so, with your wireless, sure. We hook up the Sennheiser xlr transmitter, which usually sends from a mike, to the xlr outputs on mult boxes at press conferences all the time. If the multbox doesn't have a mike level output we set the transmitter input level to -30db and sometimes hook up an Audio-Technica in-line attenuator between the box and transmitter as well, if it's a hot signal.
If you don't have an xlr transmitter you would need an adapter cable matching the source and your transmitter's plugs also. HTH / Battle Vaughan/miamiherald.com video team |
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This system is probably the most handy one - the only thing I'd take would be a cable that has an XLR plug wired to an unblanced 1/4" jack - just in case their mixer does not have xlr outputs. All you need to ask for is a mix of their output in mono, if possible. Just remember that whatever level they send you, it will almost certainly go up during the show.
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In my experience the house people seldom have any idea of exactly what they have, nothing beats having the right stuff on hand to fix whatever. It's a combination of what they have and what you need, and you can't depend on the house to have just the levels you anticipate.
I have a local government center, with a professional av staff, that runs really hot output from the audio feeds, no matter what anybody tells them....I just take my variable pad with me when I go there....and a fistfull of various adapters and cables....it's nothing you can't handle on-scene if you have a goody-box of adapters and such with you. /bvaughan |
A couple of additional notes on what's already been said. If you use a TRS 1/4" plug to XLR plug adapter cable to convert a 1/4" balanced line out to XLR balanced line-level out, the XLR end needs to be MALE. And of course don't forget it would still be line-level so you'd have to set your XLR input to the appropriate line-level.
If you use a passive DI box to convert from 1/4" to XLR, then you'd need a TS to TS unbalanced 1/4" cable to go from a mixer Aux Send or other output to the DI box. The DI box will convert the line-level output to a mic-level output and you can use your regular XLR mic cables for the majority of the long run. Other advantages of the DI box: You get a looping out of the line input to use somewhere else. Usually they have a ground-lift switch to help defeat a ground-loop hum. And they have switchable or variable attenuation to adjust a hot signal. Other good adapters to have: XLR gender-changers in both male and female, switchable XLR pads, XLR Female to 1/4" TRS, TS female to RCA male adapters, 1/8" TRS mini male to 2xTS 1/4" male cables (coupled with two DI boxes it's great for taking the output of a computer into your mixer when someone has audio from their presentation computer). I need a dollar from everyone who says "Oh yeah, I decided to add sound to this presentation, how will everyone hear it??" I'd have enough extra $ in the jar to buy a good condenser mic. |
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Do you have specific brand/model of DI box you recommend? Thanks Ben |
I usually have a 40db XLR in-line pad, plus an XLR "Y" cable to let me run a mono feed to both stereo channels on my XL2. DON'T FORGET A GOOD PAIR OF HEADPHONES. You absolutely MUST monitor the audio when working off an external feed. Forget what the VU meters are telling you -- go with what sounds right.
The 40db pad is for those times you can only get a line-level feed for a mic-level input. They're pricey little buggers if you buy them ( average cost around $40 USD from most suppliers), which is ridiculous because they're nothing more than three 1/4-watt resistors inside a pass-through housing. I made my own for less than $5, but then I've got more time than money. Martin |
Line to mic level adaptor
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Shure | A15LA - Line Adapter | A15LA | B&H Photo Video . Connect it to your wireless transmitter (you often need an adaptor or special cable for that, then you have to adjust the level in your transmitter...) |
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