Wireless Feeds

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drdimento

Well-known member
hi. i want to feed three or four cameras L & R XLR from a single mixer and all wireless. that is, i need a single/dual transmiter that takes an XLR feed from a mixer both L and R and broadcasts to three or four wireless receivers that would have XLR outputs that would be plugged into the pro camera XLR inputs and thus all cameras get the same audio path. con someone direct me to such audio hardware?

dr d
 
Any 200 series Lectro can transmit to multiple receivers as long as all receivers are on the same freq block, just tune into the right freq. You could feed 2 Lectro TX, L/R and they would send signal to 4 L & 4 R receivers. Older 180 & 190 systems can't always do this even if on the same freq.
But only the Zaxcom can transmit stereo...for a lot more money.
 
Money wise Xort , the zaxcom is cheaper :-) for that particular situation .
the only benefit use lectro i see is if you you run quarter watt transmitters for long range .
i really like the lectrosonic for what it deliver but for easy work for me and the camera person ,zaxcom is quit ahead.

i still dont get why to feed all the cameras
 
thanks for your continued help "xort" & "ExileOnTheMainStreet" (whew, that's a long one) :)

actually, all i need to do is have one of the channels (L or R) transmitted to the cams after i select mono output from the mixer and i can split the output at the camera receiver to both channels and thus both L and R on each cam will be the same and that will be satisfactory.

as far as the separate two channel recorder, that would be great but i have little experience with the timecode issue and worry that i won't get the audio and video sync'd. if you have some suggestions there, i'd more than happy to do some reading up on the subject if directed to the proper "read" zones :)

also, we're going to have HD's at the cam's and thus our thoughts were to simply feed the audio there, and take down the audio on the cam without fear of sync probs. thoughts?

otherwise, thoughts on the least expensive route as described with decent quality output would be very appreciative.
 
Well, having just completed a three camera shoot for a TV show (all three DVX100's) with audio recorded on a separate recorder, you really don't have to worry about "timecode issues" as long as you slate each take (you can use a standard slate, don't need a TC slate). Just make sure all of your cameras can see the slate and the mic is appropriately placed near the slate for the clap and away you go. Syncing the audio is simply a matter of aligning the clap in your NLE. If your takes are really long, you might get a bit of drift (takes of 10-15 minutes each). If you're worried about this, just tail slate each take and then you can calculate any drift really easily and adjust as needed.

Phil
 
drdimento said:
thanks for your continued help "xort" & "ExileOnTheMainStreet" (whew, that's a long one) :)

actually, all i need to do is have one of the channels (L or R) transmitted to the cams after i select mono output from the mixer and i can split the output at the camera receiver to both channels and thus both L and R on each cam will be the same and that will be satisfactory.

as far as the separate two channel recorder, that would be great but i have little experience with the timecode issue and worry that i won't get the audio and video sync'd. if you have some suggestions there, i'd more than happy to do some reading up on the subject if directed to the proper "read" zones :)

also, we're going to have HD's at the cam's and thus our thoughts were to simply feed the audio there, and take down the audio on the cam without fear of sync probs. thoughts?

otherwise, thoughts on the least expensive route as described with decent quality output would be very appreciative.
Click to expand...

you can feed the cameras with mono feed from the board and insert that to one of the camera channels , while second channel stay with camera mike open for reasons you will suddenly loose the feed so you can synchronise later by ear. .
what kind of camera you are working with?
if you have ext tc you can synchronize the cameras for free run tc while the master tc could be your camera or your audio recorder, since the audio recorders usually have much accurate tc boards use the recorder as your master .
if you afraid from drift , you might use external tc generators on your cameras which have internal power and much accurate ( ambient or dinecky have these units) .
the units could be jammed by external generator ( audio recorder ,or external master tc generator)

if you working with cameras which not have ext tc capability( dvx,z1,jvc...) just put them on free run with time of the day numbers , put the numbers as close as possible and run them together , the mistake between all cameras and audio recorder will stay the same .usually there is no drift in tc for less then 2 hours period , but ..the cameras heavy influanced by battery change ,and cassette change which can make the tc drift or even tc jumps , so the method is to use clap in the beginning of each scene.
and since your devices run free run tc, no need to slate every take .
if you want to work fast and the show have limitation of stopping shooting you can place digital slate out the frame and each camera will shoot it every time they change cassette battery or every part of time you think it right ( half hour,hour)
the digi slate could be hook by wire or wireless to your audio recorder which will work as the master clock to your show or just be jammed ( they are very acurate soit good for 4,5 hours at least)
the audio which recorded separate would be much better then if it have been transferred via wierless .
in editing, you would be able automatically synchronize the audio to your video without a problem since they carry the same tc or have continues same error between the time codes( non tc input cameras)
the audio recorders have almost the same tc characteristics as your camera , you have to choose the same tc rate for proper working .
of course it very important to use the right person who undersand what iam talking about:-)

have anice shooting
 
hmmmm, well . . i just learned tonight that i only need to feed one camera. soooo, while i like the idea of the audio recorder, i'm very worried about the sync'ing, let alone i'd have to research where to get one and how to do the sync thing . . so can use all the help anyone/all can input on this wireless feed.
 
check if you have audio renting in the aria you are living or qualified sound person who owns the gear which can explain you what do you need to your job , dont learn swimming by mail you might not come back to the coast :-)
if you have situation you can run feed to the one of the cameras with wires , use it and save the recorder cost .to synchronize additional tc recorder is the same as have another camera - but without the picture ,so if you run 3 cameras , think about as you run 4
 
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