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

[Richard Jett]

Hi Ty,

Thanks for the welcome and jumping here with the newbe.

I was reading a thread on using a Transcam field recorder as a mixer for a HDSLR. The post did not mention on how to get to the camera. My assumption was that the he must of taken a line out feed and inserted a pad between the connections.

I have a Panasonic HDSLR GH3. And I am using the Zoom h4n. So I tried this and, yes, there must be pad put between the line out and the mic in on the camera. My question in my post was where do you find a male mini to male min line with a 30 (20?) db pad.

Thanks Ty, Richard Jett

[Ty Ford]

Hello Richard,

You want to use the mics of the H4N as a mixer, with its mics or others?

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 Jett]

I will be connecting to lav,s to the H4n.

[Ty Ford]

Richard,

Lay it all out for me.

Are you using the H4 to record?

What are you up to?

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 Jett]

I am using the h4 to record the two lav,s and to also send a good quality stereo signal to the camera.

[Ty Ford]

Richard,

Something like this?

https://www.markertek.com/Cables/Audio-Cables/DSLR-Audio-Cables/Sescom/LN2MIC-ZOOMH4N.xhtml

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 Jett]

Hey Ty, I think that might do it. Thanks so much. Richard Jett

[Rob Dunford]

Hi Guy, this is an old thread but it seems you have addressed an issue that came up recently. I have a Panasonic GH3 and a SoundDevices 552. I wanted to connect the mixer out to the GH3, to record audio direct as well as internally.
So using the XLR’s on Line Out, with the GH3 audio level set at about 14, awful noise floor and feedback on one of the mics (through the h/p’s) Couldn’t work it out at first, since ‘I assumed’ that the audio input would accept line in. Then ‘just for fun’ I switched the XLR’s to mic output level and set the GH3 level at 1. Bloody Bingo! No more noise floor and no more feedback.
So looked at the 552 output settings, seems Mic Out is -20dB@0.078vrms and I’m wondering whether that more or less corresponds to your suggestion of -10dB.
There is the -10 setting, but that corresponds to +6dB@1.5vrms…