I have another whimsical question.
I have a Flip cam video camcorder, which is known for having terrible audio quality.
I looked at the mic and I noticed that it is unshielded and there was no foam padding to equalize the response to bass (bass clips really bad right now).
It also picks up mains hum. I'm not sure what the mic is, probably an electret, but as long as there are amplification components, we have learned in my guitar amp troubles that a transistor or tube can rectify RF into audio, which here is rectifying mains hum of guitar amp mains power supply transformers at a live performance.
If I was to wrap some wire labled as stereo wire at Walmart (what I found on the internet to be the correct gauge for building an RF choke) for 13 coil turns (that is the number I found on the internet) with a little antenna sticking out at each end to attract RF to the coils and be attenuated passing through the coils, would it work winding the coils around the camcorder?
What would be the best location to wind the coils around the camcorder? Would the best location be to have the center of the coil winding (coil number 7) over the center of the mic so that the maximum RF attenuation would be above the mic?
Then I would secure the coils with duck tape then I would wrap a layer of foam around the camcorder with a hole for the lens, a hole for the battery access, and a hole for the USB port.
So my objectives are:
(1) Eliminate picking up RF noise such as mains hum,
(2) Eliminate bass clipping,
(3) Eliminate feedback pickup,
(4) Eliminate picking up audio noise that is not in front of the mic.
Can I do it?
I have a Flip cam video camcorder, which is known for having terrible audio quality.
I looked at the mic and I noticed that it is unshielded and there was no foam padding to equalize the response to bass (bass clips really bad right now).
It also picks up mains hum. I'm not sure what the mic is, probably an electret, but as long as there are amplification components, we have learned in my guitar amp troubles that a transistor or tube can rectify RF into audio, which here is rectifying mains hum of guitar amp mains power supply transformers at a live performance.
If I was to wrap some wire labled as stereo wire at Walmart (what I found on the internet to be the correct gauge for building an RF choke) for 13 coil turns (that is the number I found on the internet) with a little antenna sticking out at each end to attract RF to the coils and be attenuated passing through the coils, would it work winding the coils around the camcorder?
What would be the best location to wind the coils around the camcorder? Would the best location be to have the center of the coil winding (coil number 7) over the center of the mic so that the maximum RF attenuation would be above the mic?
Then I would secure the coils with duck tape then I would wrap a layer of foam around the camcorder with a hole for the lens, a hole for the battery access, and a hole for the USB port.
So my objectives are:
(1) Eliminate picking up RF noise such as mains hum,
(2) Eliminate bass clipping,
(3) Eliminate feedback pickup,
(4) Eliminate picking up audio noise that is not in front of the mic.
Can I do it?