GH4 GH4 with Factory Audio Fix Has 70 dB of Dynamic range !
- Thread starter TheDingo
- Start date
So you already own a GH4 camera ?
If you do, then I would contact the main Panasonic distributor in Scotland to find out where you need to send your camera.
( you might even try contacting Philip Johnston ( HD Warrior ) who is a well connected GH4 shooter in Scotland )
TheTrickster
Well-known member
Keep us informed if you get anywhere with a UK fix.
What I still don't understand is why the Panasonic Mic works, if it is indeed a 'fault' with the camera - and if its purely down to a connector issue, why no one hasn't found an inline fix.
Batutta
Major Contributor
I've done experiments. I found a trss splitter that lets you connect a mic to the gh4 like the Panasonic mic and use it in s.shotgun mode. In s.shotgun mode, it boosts gain while using some kind of noise reduction that gets rid of the noise, as well as mic hiss, and sounds pretty good. Test here--
http://pixultronik.com/mictest1.aif
The big downside is that there is a strong delay on the headphones as you can only hear rec. sound (instead of realtime) while in s.shotgun mode. It's extremely annoying to monitor this way unless you have completely noise isolating headphones, as everything echoes. Also, you can only record in mono.
When I talked to the Canadian Panasonic reps in September they knew immediately what I was talking about. I just used the terms "audio buzz problem" and "factory audio fix".
CustomerGH4
Well-known member
I hoped for a clean audio from GH4 with the DMW-MS2 (I got the impression that its uneffected by the buzz). While I admit I haven´t tested the buzz issue, but what I can say is that the preamps are no good. The audio is noisy and also as for the mic itself the sound is thin.
I regret wasting 320 euros.
Oh and also I doubt the fix would change the quality of the DMW-MS2.
If anyone has the pannys own mic and also the buzz issue fixed I would be glad to hear results.
I regret wasting 320 euros.
Oh and also I doubt the fix would change the quality of the DMW-MS2.
If anyone has the pannys own mic and also the buzz issue fixed I would be glad to hear results.
TheTrickster
Well-known member
I would like to know this too, however it appears that the normal procedure is to use -12 on the camera if using an external mic - so the noise isn't evident (if in Movie Mode) so for me, it appears to not warrant shipping it in...
If you're happy with the audio you're getting then maybe there's no need to send your camera in.
Where you may notice a difference is when you have to boost your audio in post by +10 dB or more and you might start to hear the bad GH4 "motor" sound.
zwarte_kat
Active member
Sorry to barge in, but I was searching the web to see if the GH4 still has audio issues.
Whatever I read, it's still unclear to me.
If I buy a new one from the store, will the buzz be fixed?
I simply want a camera that works with proper audio out of the box. And I will not buy a GH4 until I am convinced I don't have to worry about crappy audio.
I mostly record through a mixpre-d. I won't record separately.
My reference is the sony FS100, which I own now.
Whatever I read, it's still unclear to me.
If I buy a new one from the store, will the buzz be fixed?
I simply want a camera that works with proper audio out of the box. And I will not buy a GH4 until I am convinced I don't have to worry about crappy audio.
I mostly record through a mixpre-d. I won't record separately.
My reference is the sony FS100, which I own now.
Steve Benjamin
Active member
http://beachtek.com/panasonic-gh4-audio-performance/
not sure if that was a pre or post noise model they tested
not sure if that was a pre or post noise model they tested
Sol M.
Veteran
It was a factory-fixed model like TheDingo's.
zwarte_kat
Active member
That's very odd. The Canadian Panasonic reps knew exactly what I was talking about when I brought it up with them.
I've never seen this issue officially documented by Panasonic, though at one point there was discussion about it on the Panasonic FaceBook page. ( quite a while ago )
Unofficially any GH4 camera with a serial number "higher" than WE4FC will have the factory audio fix.
i.e. WE4FD, WE4FE, etc...
The camera I bought and tested with has a serial number that starts with WE4HC.
TheTrickster
Well-known member
I still want to know what the 'issue' is...
I mean its clear that the TRRS plugged Panasonic DMW-MS2 doesn't have this issue when its plugged in, so its not a hw fault - more of a design flaw, only thing I can think of - is it due to it sucking power from the 3.5mm port from the GH4?
Haven't sent my in - yet...
I mean its clear that the TRRS plugged Panasonic DMW-MS2 doesn't have this issue when its plugged in, so its not a hw fault - more of a design flaw, only thing I can think of - is it due to it sucking power from the 3.5mm port from the GH4?
Haven't sent my in - yet...
I suspect it's poor internal electrical shielding with the original production product.