Recording PA audio onto video camera vix XLR

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mr_impact
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Joined: Mar 30 2015

Hi guys, Im after some audio advice if possible please. Basically I video stock car & banger racing and need to record the race commentary. I usually use my own microphone connected direct to my camera which the commentator holds together with the stadium PA mic. I use that on XLR 1 and a normal mic in XLR 2 for ambient sound of the racing, then mix the 2 at the right levels when I edit.

But the latest race track we are filming at want us to record the race commentary from the stadium PA system instead of having to hold 2 mics together. Im not really sure which outputs or leads to use as Ive not had to do it before, Ive always used separate mics connected to the camera direct. But I'd like to learn how to tap into PA systems as it could help for other work too.

I would assume I need to change the XLR input from 'mic' to 'line' as the voltage would be different, but Im not sure which connectors and sockets to use from the back of the amp. Ive attached a couple of pics of the stadium PA amp, I was wondering if you could tell me which things I need to connect to where? The 'line 6' has a phono lead running near to where my camera will be, could that be an output, or an input? The last time I was there I didnt have a phono to XLR adaptor so couldnt test it,. but could that be a possibility?
Any help would be great.
Thanks.
Nick.

Wisz
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Joined: Jan 30 2001
Re: Recording PA audio onto video camera vix XLR

Unfortunately, the pictures do not actually show enough information, although I suspect those phono connectors are all inputs.

What type and model of amplifier is it?

Richard Wisz Media Services

mr_impact
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Joined: Mar 30 2015
Re: Recording PA audio onto video camera vix XLR

Im there at the weekend so will have another look at the make & model and take some better pics. No-one there seems to know how to work it other than to switch it on. The commentator uses a mic and plugs an Ipod into it for the music but apart from that they leave everything as it is. I couldnt see a 'monitor' output or anything obvious that is an output. I guessed the phono's were inputs, its just the lead goes to near my camera location so wasnt sure.

Couldnt go from the 'coaxual' into my XLR camera socket could I? 

Wisz
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Joined: Jan 30 2001
Re: Recording PA audio onto video camera vix XLR

If by "coaxial" you mean the device at the top of the picture, then the short answer is no, as it is a digital output and would require a DAC of some sort.

The device on the top also looks like a player of some sort and would therefore feed into the amplifier.

Richard Wisz Media Services

branny
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Joined: Nov 6 2001
Re: Recording PA audio onto video camera vix XLR

The top pic shows phonos as analogue out, in the absence of other outputs, maybe an adapter would allow phono + phono to XLR - Is there a headphone socket? Some video teams have used this for their feed in the past.

Do not follow, I may not lead. Do not lead . . . I may not follow.

DAVE M
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Joined: May 17 1999
Re: Recording PA audio onto video camera vix XLR

http://www.canford.co.uk/Products/20-021_CANFORD-MICROPHONE-SPLITTER-1-channel-2-way

I have 2 x these

and there is one on ebay "buy it now " at £75

I also have 2 x 
http://www.canford.co.uk/Products/20-325_EMO-E325-MICROPHONE-SPLITTER-1-channel-3-way-free-standing

 what you'd do would be to
remove the commentator's mic lead and insert another, then the box, then from the box reconnect the original lead
this should allow the original mic to carry on as it was.

You can then plug a third lead onto the box and into your camera.

This is the high tech approach to the old way of gaffing a second mic to the commentator's.

This will not give you the music.

Line level splitters would, from the back of the mixer, to the amp.

if there was a spare line level on phono, and I wanted ALL or the output, not just the mic, I would use an ART box that I have that is basically a device that converts unbalanced audio (phono) to balanced XLR ( and back the other way if wanted)
This allows an unbalanced line signal to be delivered via XLR safely over long distances,

https://www.studiospares.com/Studio-Gear/Signal-Interfaces/ART-CLEANBox-Pro-Stereo-Level-Converter_325790.htm?CAWELAID=120173110000085261&CAGPSPN=pla&catargetid=120173110000086102&cadevice=c&gclid=CMnYgrem0sQCFaoEwwodKKQALA

a picture of the back and front of the rig would be handy.
manuals may be available online
 

branny
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Joined: Nov 6 2001
Re: Recording PA audio onto video camera vix XLR

Yep, I forgot the ART box - A 'not expensive' solution to many audio headaches :)

Do not follow, I may not lead. Do not lead . . . I may not follow.

DAVE M
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Joined: May 17 1999
Re: Recording PA audio onto video camera vix XLR
mr_impact
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Joined: Mar 30 2015
Re: Recording PA audio onto video camera vix XLR

Arr brilliant, thanks for the info. Yeah one of them XLR splitter boxes would sure come in handy, not just for here, but other tracks I video at aswell. I only need the race commentary, not the music they play between races. The only other thing that would be handy is to be able to take a feed from the roving presenter trackside from time to time as he interviews race winners and sometimes introduces the races. What I do currently is run down onto the track with another mic attached to the camera but if I can tap into his feed it would be a big help too.

I didnt notice a headphone socket, and Im not too sure where that analogue ouput goes to, I could perhaps add an adaptor into that to split it maybe. But I like the idea of the mic splitter boxes. Thanks.

paulears
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Joined: Jul 8 2008
Re: Recording PA audio onto video camera vix XLR

For connection to somebody else's system, then a DI box, and then into the mic input of the camera. It gives you a ground lift and is a safe system - they also have an in and out. so with some cables even if there is a single output, you can pull it out, sticking into the DI box and then back in - their system carries on as usual and you just 'sniff' a bit passing through.