GH3 Audio Input & External Mics – Wiring, Impedance… Incompetence?

[Sam Mallery]

Here’s a couple options:

Beachtek DXA-2T

Studio 1 Productions XLR-BP (doesn’t mount to camera)

http://www.sam-mallery.com

[Bob Kessler]

As much as folks hate hearing it, you should get a separate audio recorder like the Tascam HD-P2, Marantz PMD-661, Fostex FR-2 or Tascam DR-100. Your sound will be much better.

Yes, it’s a little more work syncing the audio in post, but that’s been done ever since “The Jazz Singer.” And it’s a lot easier with a guide track (camera sound) and you can partially automate the process using something like PluralEyes.

If you still want to go direct-to-camera don’t forget to look at juicedLink Riggy products as well as the BeachTek stuff.

Peace,

Bob
____________________________________________________________________
Filmmaking is the art of the invisible;
If anyone notices your work you haven’t done your job right.

[Ty Ford]

Hello Joe and welcome to the Cow Audio Forum.

I wouldn’t do it without a mixer in between for many reasons, but if that’s what you want to do…..

Try this: all in one, all done. https://tinyurl.com/aswtcrh

Regards,

Ty Ford
Cow Audio Forum Leader

Want better production audio?: Ty Ford’s Audio Bootcamp Field Guide
Ty Ford Blog: Ty Ford’s Blog

[Richard Crowley]

The Rode NT2 is NOT battery powered. Did you mean NTG2?

It is not clear whether your GH3 camera provides plug-in power. If it does, then you need an adapter that blocks this DC voltage from going back into your microphones.

[Eric Toline]

As an FYI, Yesterday I made the OP an adapter (2xXLR-F to 3.5mm TRS, wired unbalanced)cable that allows two mics to connect to the camera.

Eric

“I push the RECORD button and hope for the best”

[Ty Ford]

Great Eric,

Did he need one with blocking capacitors?

Regards,

Ty Ford
Cow Audio Forum Leader

Want better production audio?: Ty Ford’s Audio Bootcamp Field Guide
Ty Ford Blog: Ty Ford’s Blog

[Eric Toline]

I didn’t a didn’t add any BC’s since I couldn’t find any info about a powered mic connection on the camera. Based on my knowledge of other DSLR’s like the Canon’s I believe the mic input is unpowered. OTOH if I’m wrong about the powering issue it’s never been a factor. OTOOH I only plug wireless hop’s into DSLR’s as a scratch feed to be used as a sync track with Plural Eyes & the like.

Eric

“I push the RECORD button and hope for the best”

[Bill Davis]

Did anyone ask the OP if that camera has AGC?

If it does, he’s kinda scroodged no matter what else he does.

Do the Beachtek outboard solutions still provide pilot tone to try to defeat the AGC?

Just a thought.

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[Craig Alan]

I know you said passive devices but I’m going to suggest this anyway:

https://www.bhphotovideo.com/c/product/764543-REG/Sound_Devices_MIXPRE_D_MixPre_D_Compact_Field_Mixer.html

https://www.bhphotovideo.com/c/product/293005-REG/Sound_Devices_XL_3_XL3_Mini_Male_to.html

https://www.bhphotovideo.com/c/product/765186-REG/Sound_Devices_XL_CAM_XL_CAM_Camera_Mount_Bracket.html

phantom power, mic input, or line level. great metering. great headphone amp. great preamps. filters, limiters. the only quality mixer that can be mounted under your camera with or without a tripod.
it will significantly improve your audio by being able to turn the cam’s preamp way down. calibrates with cam with standard tone. Sound Devices customer service is great. The build quality is great. Very small form factor.

MacPro4,1 2.66GHz 8 core 12gigs of ram. GPU: Nvidia Geoforce GT120 with Vram 512. OS X 10.6.x; Camcorders: Panasonic AG-HPX170, Sony Z7U, Canon HV30/40, Sony vx2000/PD170; FCP 6 certified; write professionally for a variety of media; teach video production in L.A.

[Vico Prima]

Thanks for the information, actually I have same question.