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Canon EOS Full Frame for HD
All about using the Canon 1D X, 6D, 5D Mk. IV / Mk. III / Mk. II D-SLR for 4K and HD video recording.


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Old August 13th, 2010, 11:37 AM   #1
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Audio Question/Issue

Hi,

I have a 5D with the latest firmware.

I've hooked up my Sennheiser ME66 directly to the 5D using a 3.5mm -> XLR Female adapter.
I was trying to avoid purchasing the Rode Videomic since I already own it.

The audio is great on the RH channel, but the LH channel, the audio is WAY distorted.

Anyone try this before or know why I'm having these issues?

Thanks,

Jim
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Old August 13th, 2010, 11:46 AM   #2
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Originally Posted by James Huenergardt View Post
I've hooked up my Sennheiser ME66 directly to the 5D using a 3.5mm -> XLR Female adapter. [...] The audio is great on the RH channel, but the LH channel, the audio is WAY distorted.
Isn't the ME66 a mono mic..?

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Old August 13th, 2010, 12:10 PM   #3
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Yes, it is a mono mic.

But, a cable should be able to take the mono signal from the mic and post it to both stereo channels.
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Old August 13th, 2010, 12:25 PM   #4
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Originally Posted by James Huenergardt View Post
Yes, it is a mono mic. But, a cable should be able to take the mono signal from the mic and post it to both stereo channels.
I was thinking that the signal you get in the left channel might just be some bleedthrough. To confirm this, I'd try a different 3.5mm adapter.

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Old August 13th, 2010, 02:06 PM   #5
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Sounds like you needs a mono/stereo adapter.... I've run into this issue and can be solved with an adapter from Radio Shack for less than $5.00
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Old August 13th, 2010, 06:08 PM   #6
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If I use a balanced signal to input into an unbalanced input.

I use a balanced to unbalanced adapter, Radio Shack has those. They are Big, 4"long. then you need to have an adapter that takes 2 unbalanced signals and puts one on the ring and the other the tip.

Plug the converted signal into one of the unbalanced ins. You may also have to pad the signal if it is too strong.

I know this may be a little complex. The simple way to do it is to use a small field mixer. And just plug the unbalanced L/R out into the 5D. Make sure you start with the volume all the way down, if you can use mic out not line, if it is line level pad it.

You can also make your own cable direct from the mic using only one of the hot pins, but it will be nosier then the above solutions.

Remember a balanced signal has 2 180 degree out of phase signals that get recombined to reduce nose.
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