Noisy DVX100 audio. HELP!!!

jerzythepeddler

jerzythepeddler

Member
I am about a week away from shooting a short film and starting to test everything I will be using fairly extensively. I will preface my question with this. I work in audio for a living so I have everything I need to make the audio as good as possible(studio, mics, preamps, etc)

Now the problem and question. I have been testing the xlr input on the dvx100b with an oktava mk012 and I hear a distinct high end noise, similar to what you hear when a cellphone is around speakers only not anywhere as bad. It probably wouldn't even be that big a deal for recording just dialog because I could just cut the noise out but I was wanting to also use the cameras built in audio capabilities to record room tone and various sfx on set.

My question is this, Do you guys record your audio in camera or to an external device(dat, hard disk, etc). And if you do record into the dvx100 do you do anything special to get rid of the noise. I could use a seperate recorder but the short film I am doing has a pretty tight schedule as is and I am doing everything myself(directing, recording sound, lighting) so I really would love if I could use the internal audio recorder on the dvx100 so I would have one less thing to worry about later.

I may just be being to picky about it but figured I would ask in case anyone else has noticed this and also to see how many people record with an external audio device.

Any and all info would be greatly appreciated.

Josh
 
When I had the DVX we used the Audio In camera. We ran AT mics into both XLR's with no issues. It actually sounded better than the Marrantz CDR we were using at the start. It could be a bad cable. I highly recommend Mogami cables. They are expensive but the quality is top notch and the warranty is unbeatable. If it's coming from both ports something could be wrong with the mic, the cables or the cam. You just have to trouble shoot it. I would not shoot with the noise there though.
 
Sounds like RF/cable issues. Try new & better cables as suggested or try using the same gear in a different location, does that solve it? A DVX in good working order will record clean w/o those noise issues. Work your issue starting at the: mic, cables, input connectors, settings, tape heads, tape, monitoring.
 
Have you tried recording and capturing some footage to see if the noise is really recorded into the audio?
 
David Jimerson said:
Have you tried recording and capturing some footage to see if the noise is really recorded into the audio?
Click to expand...
Yes, I captured to tape then captured the footage into FCP and the noise was there. I also unplugged the mic and turned the level to zero and there was still this "High Noise" on the captured footage.

I also recorded audio to my firewire audio interface(RME fireface) with the same chain(mic, cable, etc...) and there is no noise whatsoever.

It is kinda hard to describe the noise so I made an aiff of all the variations(mic+dvx, mic+firewire interface, dvx with no audio inputting into it) I don't know how to post it on this forum, but if someone wants to pm me and either tell me how to upload an aiff or I could send you the file(it is only 2.9 mb) maybe you guys could get a better understanding of the noise I mean.
 
I think I am experiencing the same issue. The audio sounds great in the headphones and the levels are fine but when I play back the tape both channels of audio are bad.

I played back the tape and the audio is recorded bad on the tape so it's not a capture issue.

Anyone else exp. this?
 
Hey, here's an idea. Hook the mic to a mixer and then run line level out of mixer to line input on camera.
 
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