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Sony HDR-CX560V External Mic Hum
I have a Sony HDR-CX560V. Because the internal microphone isn’t the best, I purchased a compact Rode VideoMic Pro as well as a Sennheiser EW112P G3B wireless lavalier mic setup.
This is where it gets interesting. If I listen to the internal mic the audio doesn’t have any noticeable buzz. If I hook up the Rode shotgun mic and plug it into the mic in jack there is a noticeable buzz that appears in the background noise. If hook up the Sennheiser receiver to the mic I still hear that same buzz but it is a bit more quiet.
I have set the mic input to low on the camcorder, thinking that the camera might be introducing the buzz because it was trying to find some noise to boost when there wasn’t any sound present. Also, I don’t think this is AC related since I tested this while the camera was on battery power.
Could this be due to the fact that both the Sennheiser receiver and the Rode shotgun mic are powered microphones and they are somehow interfering with the power that the Sony camcorder sends to the microphone jack? Would something like a beachtek or a juicedlink be able to solve this problem? Is this some kind of DC ground loop problem? Thanks in advance.
