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Canon EOS Crop Sensor for HD
APS-C sensor cameras including the 80D, 70D, 7D Mk. II, 7D, EOS M and Rebel models for HD video recording.


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Old February 17th, 2011, 04:29 PM   #1
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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!!!
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Old February 18th, 2011, 12:21 PM   #2
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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.
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Old February 18th, 2011, 06:24 PM   #3
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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
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Old February 18th, 2011, 07:09 PM   #4
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Try the free Audacity sound editing program.

Also there is Sound Soap.
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Old February 19th, 2011, 11:39 AM   #5
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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.
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Old February 19th, 2011, 12:08 PM   #6
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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.
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