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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Computer RF Getting Into Microphone
Since purchasing a tabletop usb condenser mic, listeners on a chat site tell
me they are hearing severe intermittent "squealing & distortion". I am using headphones, no speakers connected to the computer so i can rule out audio feedback as the problem. I'm of the opinion that rf from the computer may be getting into my mic. The mic's usb plug does 'not' have a ferrite rf choke. Besides placing a choke on the above usb plug, i will also place a choke at the base of the mic. I will try to acquire ferrite chokes from a discarded vga monitor or purchase "snap-on" chokes from radio shack. Any suggestions, advice etc. would be appreciated. Thank You. |
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Computer RF Getting Into Microphone
"Spin" wrote in message news:B3m2j.13718$281.12727@trndny06... Since purchasing a tabletop usb condenser mic, listeners on a chat site tell me they are hearing severe intermittent "squealing & distortion". I am using headphones, no speakers connected to the computer so i can rule out audio feedback as the problem. I'm of the opinion that rf from the computer may be getting into my mic. The mic's usb plug does 'not' have a ferrite rf choke. Besides placing a choke on the above usb plug, i will also place a choke at the base of the mic. I will try to acquire ferrite chokes from a discarded vga monitor or purchase "snap-on" chokes from radio shack. Any suggestions, advice etc. would be appreciated. Thank You. Well if this is a USB microphone, a ferrite choke should make no difference. The sound will be digital data rather than analog audio on the USB cable. I have had a problem with small condenser squealing mic's when I cover the hole with my finger. I have no explanation for this phenomenon, but may be what you are experiencing. Have you tried a standard analog mic instead? There may be some issues with your USB mic. Mike |
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