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Getting Sound onto a Red Epic

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Yeah i guess because I had fed mic preamps from line level sources before, I thought you could always do this - that the preamp on mic level input would not only provide gain but attenuation too - ie allowing to turn down the line level feed.

Guess that is not always the case!

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For all the errors these cams used to have, I haven't had problems getting sound into an Epic/Scarlet since their firmware revisions ages ago. I don't even worry about these cameras anymore when running sound to them. Fans are still loud, but even then the firmware updates have helped with that. Unless the camera is on very old firmware, it shouldn't be an issue working with them in my experience.

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Sending line level out to line level in and mic level out to mic level in is always the best way to go. It's called gain staging.

 

 

Eric

When one has a mic level out, or when one has the time on these 'run and gun' shoots to source another solution.

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" When one has a mic level out, or when one has the time on these 'run and gun' shoots to source another solution. "

having the tools is part of the job...

solving the problems is the job.

this is how you earn your rate...

Edited by studiomprd

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When one has a mic level out, or when one has the time on these 'run and gun' shoots to source another solution.

 

If your mixer does not have a switchable mic level out then you should carry a couple of 40db plugin barrel pads. Sorry to say this but you're selling yourself as a pro, you should be prepared for those situations instead of making excuses. 

 

Eric

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I agree with the solution.

 

However, with a 30lb overflowing mixer bag, and having been assured that we were not putting audio or timecode on camera, one has to draw the line somewhere. I cannot bring the kitchen sink while OMBing.

Small as those barrels are, there is a limit.

 

(and I am familiar with the term gain staging, but thanks).

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I agree with the solution.

 

However, with a 30lb overflowing mixer bag, and having been assured that we were not putting audio or timecode on camera, one has to draw the line somewhere. I cannot bring the kitchen sink while OMBing.

Small as those barrels are, there is a limit.

 

(and I am familiar with the term gain staging, but thanks).

 

They assured you and you believed them. I bet that's a mistake you'll never make again.

 

Eric

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Even with the box, you have to use the non-standard 1/8" balanced connectors on the front of the camera for channels 1&2, and with the adapter, you get XLR in for 3&4 only. And you can't reassign or swap the latter for the former.

 

Just in the interest of information flow:

 

I had a shoot with 2 Epics, both having the box attached.

 

On one, the 'box inputs' indeed only fed channels 3&4.  The DIT said it was common practice for them to remap it during transfer.

 

The other camera mapped the box inputs to channels 1&2 internally.  Apparently at some firmware version, this is possible.

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On one, the 'box inputs' indeed only fed channels 3&4.  The DIT said it was common practice for them to remap it during transfer.

 

Yes, it is possible to pull in inputs 3 & 4 to record channels 1 & 2. But it's kinda stupid that it has to be done that way.

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just done another two months movie with three epic everyday, still use ERX2TCD and a Y cable, tc fine, and audio cable side go into Epic is Unbalanced this time,worked out fine too. Probably it just doesn't take balanced cable.

 

the biggest issue this time was : the GP I/O control signal is also located on the same connector that tc connector, the steadicam op wasn't happy to do it manually and the rental house didn't provide any pro I/O for the cameras, we lost two days of TC for A cam because the op un-plug the tc cable, then editor showed up on site brought this up to the producer,went a bit ugly but we got the connector for TC at the end.  Another RED design thing.

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just tested with two epic today:

i made a Y cable for erx1tcd, bnc side is tip and groud, audio feed side to camera is on tip and ground which connected to erx's side on ring and ground .

the tc is locked very nicely,output 0.5v, it follows every time i changed anything from deva,( it doesn't work very well when i used it to a red one camera back to years ago,haven't worked with red one for a long time )

the audio doesn't want to run into the camera from my Y cable ,bal or unbal. no idea why.(input & output is ON) then tried a bal 3.5mm cable still not working.The camera dept provided a xlr input adaptor cable,it works. So i guess is my wiring got bit wrong.

anyway the DOP doesn't want to any audio run into the epic,he believes this will cause issues to the camera,so i only provide tc to camera. And feed audio to the pix240 which is next to the camera. TC through SDI from epic to pix240

 

 

I have a similar setup with an erxtcd. I already got a premade split cable that goes bnc for timecode, xlr for audio feed. I want to make a xlr - mini-jack adaptor to feed the Scarlet (we dont have an A-BOX). What would be the proper wiring? Anyone solved this one?

 

Just in case, I'll prepare some mini-jack > mini-jack plugs just for audio feed. According to previous comments on this thread, the correct  thing would be to use a mono mini-jack (TS), tip +, sleeve ground, right? This should work wuth the ERXtcd or one of my g3's.

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my ERX cable for epic is : 

 

3.5mm( one erx side) 

TIP to BNC, sleeve to sleeve ( then BNC to lemo 4pin) 

RING to another 3.5mm's TIP, sleeve to sleeve(which goes into Epic), UNBALANCED audio on Epic. 

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Hi, Wang

 

Got exactly the same config on my pre-made cable. The only difference is that instead of a 3,5 mm plug, I've got a xlr unbalanced. Thanks

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