im getting sound interference with the H4N when I use phantom power! :(

P

Polarjee

Active member
o I just got my Zoom H4N along with a Rode NTG-2 microphone and I'm getting this high pitched squeaky ambient noise whenever I try to use the H4N's +48 phantom power.
Luckly, this microphone has a backup battery source and when I use it I don't hear it. But does anybody know why I'm getting this and more importantly, how I can get rid of it?
I also tested it on a senheiser microphone which only works off phantom power and I still hear it.
The sound is a very high pitched squeaky sound. I don't know if anybody will understand this explination but if you happen to have a iphone and you play music though your car auxilary while you are charging it with a cigarette port charger, theres usually a high pitched sound that comes out of the speakers which gets louder as the rps get higher. If you just happen to know what that sounds like, it sounds exactly like.
Any help would be great!!
Thanks!!
 
You mean it's strictly being recorded into the H4N? Are you running the H4N on internal batteries or AC adapter? Post a sample of the noise if possible.
 
OHH!!!! I figured it out. Haha I was putting though final cut so I can extract just the sound to post it on here and I realized the strange sound was on the second track only. Since I'm only using one of the XLR inputs, the other empty track is just putting out that annoying sound. So all I have to do is delete the empty track and no the sounds gone! yay!
I wonder if there's a way to use my headphone only to monitor the 1st track instead of only being able to hear the sound from the left ear and hearing that interference though the right...
Anyways, thanks again!!
 
Ah...easy solution(s).
Would recommend recording to both channels at different levels to maximize chance of having an undistorted channel during peaks and a hot enough level during quiet spots. Can the H4N assign one input to both channels? That would be slicker than a Y cable.
 
Gweilo66 said:
Can the H4N assign one input to both channels? That would be slicker than a Y cable.
Click to expand...

There's a Mono Mix setting which records to both tracks with only one mic plugged into the XLR inputs. But I'd advise against using that setting if you need to record at a high gain because you'll need to set the level higher with Mono Mix set to ON than with it OFF -- level at 85, for example, with it ON vs. 75 with it OFF. This can translate into more noise.
 
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