GH4 XLR audio solution for the GH4

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Yes actually. Tested this the other day shooting a speaker. I have the Tascam Dr-40 and I was running a Sescom cable to the GH4. I have the Audio-Technica AT875R and Sennheiser G3 Lavs going into the Tascam. I was able to get two separate feeds into the GH4. Once I set my levels, I was actually able to controls levels some straight on the GH4 touchscreen itself.
 
A similar setup with the DR-60 has worked the same for me in the past however I was wondering if there is anyway to skip the mixer and plug directly into the camera with two sources and get two separate channels. Perhaps there's a specific y cable for this?
 
bdjansen said:
Did you use a dead cat on your Rode? I just got that mic and it seemed to be picking up a lot of wind noise even it was not what I'd call windy outside. Any other tips for how to set up that mic and it's use? I think your audio sounds pretty good.
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No dead cat was used just the windscreen that comes with the Rode VideoMic Pro. It wasn't windy that day if I remember correctly. To get clean sound I was around three or four feet from the sound source.
 
TheDingo said:
Working with some audio test files that Benjobe gave me access to, it appears that the GH4 likes an audio signal closer to a true MIC level -50 dB. ( the GH3 works best with a stronger -20 dB audio signal )

Measuring the noise-floor the GH4 scored the same as the GH3 and my HMC-150 camera, which is -63 dB RMS. This is good for a DSLR camera, but recorders like the Sony PCM-M10 or Tascam DR-40 show a noise floor of -75 dB RMS under the same conditions.

Also, it appears that the dang AGC demon can be killed off in the GH4 by turning off the audio limiter in your camera settings.

So it definitely looks like Panasonic has spent some time revamping the audio in the GH4 ( i.e. stronger preamps, ability to turn off AGC and the limiter ), which is a big plus in my books.

I am curious if recording audio through the YAGH interface will improve the noise-floor compared to feeding a good mic level audio to the camera directly. It would be easier to justify the YAGH if the audio noise-floor was 10 - 15 dB quieter, which would make fixing weak audio much easier without having to deal with the self-noise of the camera. I am hoping I can rent one of these beasts to try it out.
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I did a few tests today comparing the C100 and GH4 internal recording and found the GH4 did very well. In fact in post after I adjusted the levels in Premiere Pro they sound the same. After testing I'm confident in recording internally with the GH4. The GH4 was dialed all the way down to -12 DB. I wish I could dial it down a bit more but thats the max.
 
Allow me to start off by stating it takes a lot to impress me in regards to audio reproduction having worked in the audio business for several decades. I own an AF100 and am quite pleased with the mic preamps. I would expect the brick to be of similar quality. That said, $2000 is much more than I care to pay for it. That thing should be $500.
A reviewer from camerastore.com had an excellent idea of a battery grip style device with XLR inputs. The GH4 is ready to receive such a device. For my needs audio is a higher priority than 10 bit 4K picture.
Panasonic have been making excellent audio equipment for a very long time.
 
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For all practical intents and purposes, you'll be fine with something like a juicedlink box and a separate recorder, although if the preamps work as well as the GH2's after the Pasadena audio hack, you may decide you don't need the recorder at all. I would leave the YAGH to those who need 10bit 4k over SDI
 
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Yes the YAGH gets it's power via 4 pin xlr, but plenty of folks have portable setups using brick style batteries, and have so for years now. So I don't see how adding a battery makes it "far from being portable". In fact when I'm out in the field for extended shooting, I almost always prefer powering my whole camera rig from a single V-Mount battery rather than using multiple batteries. Sure it's not as portable as just the camera/lens, but I would wager that most working folks have a larger footprint than just camera/lens.
 
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