BMCC 2.5K with audio inputs used

[Matthew Sonnenfeld]

Just glad to help! I agree with you that this is probably a BMC specific problem. I think the PIX 240 will be a godsend for you as that seems to be the more reliable device. At least you will have the image that you want paired with the sound that you want. I will probably be calling BMD tonight to notify them of the issue and will update you on what I hear back from them. Honestly I’m glad we’ve investigated it this far because I never would have known about it! Gotta the the COW!

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The College of William and Mary

[Geoff Addis]

What happens if you short the ring and tip connectors to ground (outer shielding of the lead) ?

What happens if you terminat the mic inputs with 200Ohm resistors?

Have you tried putting a ferrite ring around the mic lead, close to the input jack on the camera?

It could be an RF problem or the pre amp in the camera ‘hooting’ due to a high impedence input.

[Richard Martz]

I’ve been following these audio issues with a keen interest. I’m wondering why Blackmagic would release a camera with all these audio issues. I only began investigating what I should do to solve my own audio problems with the BMCC and was assuming I was doing something wrong. Would anyone like to join in a class action lawsuit? I’m meeting with my attorney tomorrow.

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[Anand Vyas]

Blackmagic Design promised us an image on par with RED Cameras at a fraction of the price. They produced excellent results. You can always use an external recorder and to to be honest using the Riggy Assist I have no trouble using my BMCC with “in camera” sound routed from my Riggy Assist with any good mic. Furthermore the Super 16mm (close to) crop factor makes Focus pulling easier while simultaneously allowing one to use large apertures and still have a nice shallow but controllable depth of field as one as one person trying to use a follow focus is critical. Last words they did not promise the audio would be “perfect” and even if the image wasn’t simply incredible, a class action lawsuit is the dumbest thing on the planet. This small company is helping the little guy make GOOD LOOKING FILMS and you want us to help you sue them ? Um, no thanks. Thats the dumbest idea I have ever heard for the most irrational reasons (your inexperience and lack of understanding the camera are the culprit regardless).

[Richard Martz]

Thanks for the admonition. You are right. Everyone needs grace (unmerited favor). And nothing technical is perfect. So I should learn to temper my expectations. I love the BMCC and the more I use it the more impressed I am with the performance of the camera. I was really just kidding with my comments – although I did actually have lunch with my attorney that day. To forgive is divine. I hope to receive forgiveness from everyone for my coarse comment. Well stated. And noted.

Sincerely,
Richard Martz

MagicMartz Media
Atlanta, GA

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[Richard Martz]

This sounds pretty stupid but you might want to check to be absolutely sure that your 1/4″ TRS inputs are pushed in all the way. When we initially tried this we had the same problem only to discover that we needed to be more agressive about plugging in those cables.

Bot other people have reported the same problem. We only know that the audio is pretty good and we have had no problems getting usable audio. We generally record double system sound as a backup though. Eliminates the nervousness.

Sincerely,
Richard Martz

MagicMartz Media
Atlanta, GA

FCP 7
FCP X
Blackmagic Cinema Camera
ADOBE CREATIVE SUITE CC
Premiere Pro
DaVinci Resolve 9.0
MAC 8 core
After Effects
PhotoShop
Illustrator
Sony HD Cameras
24′ Camera Crane with Motorhead
8′ jib arm
20K watts of lighting
Multitrack audio
Teleprompters
Grip Truck/trailer
Location video monitoring
Door and hood mounts
Lots of other Fun Stuff!