View Full Version : Correcting 7D Camera Mic Audio


Jon Salimes
February 17th, 2011, 04:29 PM
I just finished shooting a documentary and we had a malfunction with our H4N/Boom setup so I'm going to need to use some of the camera mic audio from the 7D.

It actually turned out really well; you only hear negative things about it but it's actually an exceptional little mic they have in there. Only problem is everything has a really sharp, crispness to it. If I could soften that up just a little bit and remove some background hiss, I think this could work.

So has anybody done this? And if so, what kinds of adjustments/tools did you use? Or does anybody know of any resources out there for this specific sort of adjustment?

Thanks!!!

Jeremy Pevar
February 18th, 2011, 12:21 PM
There is no simple solution to this. You're going to need to play around with filters and/or eq in your audio mixing program. Depending on the amount of background noise it should sound OK, but will never exactly match your properly recorded audio.

Good luck.

Craig Terott
February 18th, 2011, 06:24 PM
The biggest problem IMHO is that the 7D mic is way too hot. In loud environments audio is completely destroyed. In a quiet environment, I agree, not too bad.

Secondly, frequency response below 120hz totally sux.

I knock down the level a few db, kill a tiny bit of the high treble, and add some bass. Not perfect but better.

The hiss? dunno

Chris Barcellos
February 18th, 2011, 07:09 PM
Try the free Audacity sound editing program.

Also there is Sound Soap.

Jon Salimes
February 19th, 2011, 11:39 AM
Thanks guys! I'll give all the options a try.

It doesn't have to be perfect. I have pretty solid 5-10 track mixes for each scene, I just need some of these 7D tracks to exist somewhat low in the mix without dominating the other elements with it's deficiencies.

Doug Bailey
February 19th, 2011, 12:08 PM
Hi Jon,
I'm certainly no audio expert but have a 7D and removed traffic noise in Audition and Soundbooth. They work in similar ways. Look for a YouTube tutorial on how to do this. Also lots of great threads on All Things Audio on this forum. I saw one recently on sweetening sound, which may help.
Regards,
Doug.