C100: Mark ii - How to record one XLR input to both channels?

I

Inazuma

Member
I have a shotgun mic connected to XLR Channel 1. I've been messing with various settings but can't seem to figure out how to get the camera to basically copy the sound to channel 2?

Also I heard somewhere that it can be a good idea to get a splitter so that you plug the one mic into both XLR ports and set one to a lower volume to the other. That way you have a backup incase the other clips. Is this doable on the C100 Mark II?
 
Sure it's possible. Check B&H Photo or SWEETWATER for a good high-grade XLR splitter and tell the sales person it's for this exact function. They should have a good splitter that's made for doing this.
Then you just set the mic input volume lower on one of the channels.

As for doing it automatically in-camera, there may be a function hidden somewhere that does it internally. I have seen other cameras that do this, but I'm not positive the C100 has this. Perhaps the old Google search can help there.
 
Inazuma said:
I have a shotgun mic connected to XLR Channel 1. I've been messing with various settings but can't seem to figure out how to get the camera to basically copy the sound to channel 2?

Also I heard somewhere that it can be a good idea to get a splitter so that you plug the one mic into both XLR ports and set one to a lower volume to the other. That way you have a backup incase the other clips. Is this doable on the C100 Mark II?
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morgan_moore said:
Sony FS7 (and FS100) does this in the menu - no splitter - where have canon been?
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It's an option on the Canon on the C300 and C100 Mark II (p. 88 of the manual). Audio Setup>Audio Input>XLR Rec Channel & Options [Ch1] or [CH1/CH2].

[CH1/CH2]: Audio input into CH1 is recorded to both channels. Audio input into CH2 will not be recorded.
 
While it is possible to record one input to both channels, you are not able to change the volume of that second channel to create the safety net Stewart referred to. So the splitter is the best option in my opinion.
 
Jon Roemer said:
It's an option on the Canon on the C300 and C100 Mark II (p. 88 of the manual). Audio Setup>Audio Input>XLR Rec Channel & Options [Ch1] or [CH1/CH2].

[CH1/CH2]: Audio input into CH1 is recorded to both channels. Audio input into CH2 will not be recorded.
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You can record CH1 to both channels, but you can't adjust audio gain separately when doing so.
 
I'd be worried about the cheap y-splitter degrading the audio quality. Does it not affect audio quality at all to split the signal like that?
 
Eric Coughlin said:
I'd be worried about the cheap y-splitter degrading the audio quality. Does it not affect audio quality at all to split the signal like that?
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Somebody can correct me if I'm wrong, but I believe that cameras that have a built in dual channel recording capability are just using a switched y wiring schematic. The phantom power for both mics is coming from the same source so you won't have any sort of powering issues. The transformer based splitters are useful for protecting against p48 feedback and ground loop and load issues due to separated recorders and amps, but a y splitter into two channels on a camera is fairly standard practice and really the only place where it is safe to use a y splitter. I've done it and not had any problems.
 
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