Hello,
I am quite new to the sound world and have untrained ears and technique. I am just trying to produce a decent narration.
I have the USB CAD u37 mic. It seems that the mic itself creates a sine-wave type whine that is, very roughly, around 3220 hz.
This mic records quite low so if I amplify to normal levels this whine becomes even more pronounced, and you can hear it through the reading, not just room noise.
It doesn't seem to be electronics or lights in the room, but I don't know this for absolutely certain until I take my mic setup around the house (laptop, side arm stand, 6" pop filter, and aforementioned USB mic). Planning to do that.
Right now I am trying to approach this whine with a notch filter, but since 3220 hz is of course in voice range it makes a big change. But, this change is less unpleasant to the ear than overprocessing with noise reduction.
Still trying to figure out how to make the most of my setup. My guess is that other inexpensive USB mics may also have this sine-wave style interference issue.
Any thoughts on this, like the forum itself, will definitely help me learn a bit more and are appreciated!