I was studying test videos I made specifically for the purpose of investigating that buzzing. So in one case when I used built-in mic and power plugged in there was no buzzing and it appeared only at the end when I put my finger to the rec button. In all other cases with ac plugged in either with built-in or external mic the result was the same: steady buzzing from the biginning to the end of the video.
Hey, guys!
I've just bought my first camcorder (JVC GZ-EX515) The problem is when I try to record with the AC adapter plugged in, there is that buzzing sound in the video. When the cam is powered from the battery there is absolutely no buzzing! So I wondered if there's anything I could do.
Thanks alot!

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