Correcting 7D Camera Mic Audio at DVinfo.net

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.

February 17th, 2011, 04:29 PM	#1
Jon Salimes New Boot Join Date: Jan 2010 Location: Milwaukee, WI Posts: 9	Correcting 7D Camera Mic Audio 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!!!

February 18th, 2011, 07:09 PM	#4
Chris Barcellos Inner Circle Join Date: Nov 2005 Location: Elk Grove CA Posts: 6,838	Try the free Audacity sound editing program. Also there is Sound Soap. __________________ Chris J. Barcellos

February 18th, 2011, 12:21 PM	#2
Jeremy Pevar Regular Crew Join Date: Mar 2010 Location: Los Angeles, CA Posts: 48	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.

February 18th, 2011, 06:24 PM	#3
Craig Terott Major Player Join Date: May 2005 Location: Glendale, AZ Posts: 691	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

February 19th, 2011, 11:39 AM	#5
Jon Salimes New Boot Join Date: Jan 2010 Location: Milwaukee, WI Posts: 9	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.

February 19th, 2011, 12:08 PM	#6
Doug Bailey Regular Crew Join Date: Mar 2010 Location: Jupiter, FL Posts: 164	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.