Audio Question/Issue at DVinfo.net

James Huenergardt · August 13th, 2010, 10:37 AM

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

Peer Landa · August 13th, 2010, 10:46 AM

Quote:

Originally Posted by James Huenergardt

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..?

-- peer

James Huenergardt · August 13th, 2010, 11:10 AM

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.

Peer Landa · August 13th, 2010, 11:25 AM

Quote:

Originally Posted by James Huenergardt

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.

-- peer

Ralph Gereg · August 13th, 2010, 01:06 PM

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

Olof Ekbergh · August 13th, 2010, 05:08 PM

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.

August 13th, 2010, 10:37 AM	#1
James Huenergardt Major Player Join Date: Nov 2005 Location: Chehalis, WA Posts: 513	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 __________________ Reel Inspirations - www.reelinspirations.com Commercials, Dramas, Image Pieces, Documentaries, Motion Graphics

August 13th, 2010, 11:10 AM	#3
James Huenergardt Major Player Join Date: Nov 2005 Location: Chehalis, WA Posts: 513	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. __________________ Reel Inspirations - www.reelinspirations.com Commercials, Dramas, Image Pieces, Documentaries, Motion Graphics

August 13th, 2010, 05:08 PM	#6
Olof Ekbergh Sponsor: Westside AV Join Date: Dec 2008 Location: Mount Washington Valley, NH, USA Posts: 1,365	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. __________________ Olof Ekbergh • olof@WestsideAV.com Westside A V Studios • http://www.WestsideAVstore.com/

August 13th, 2010, 01:06 PM	#5
Ralph Gereg Regular Crew Join Date: Mar 2008 Location: Tampa Bay Area, FL (USA) Posts: 142	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