 Microphone Input Port Is Causing Static |
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 Jul 17 2005, 04:50 AM
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#1
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Member [ Level 1 ]  Group: Members Posts: 41 Joined: 29-June 05 Member No.: 6,695  |
I use my computer to record music stuff. A big problem with my production qulaity is that there is a slight buzzing with the mic input. I have narrowed it down to being the input on the computer. I use a AUDIX OM 2 mic and I have to use a 1/8 inch adaptor to connect the mic wire to the computer. I use the same microphone and cable when I perform and it doesnt give me that problem on amps, and I have tried switching out the adaptor. So Im thinking the solution would be to change out the input, but I dont really know what to buy. How exaclty would I go about changing out a mic input? Do I have to buy a whole new soundcard?
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Jul 17 2005, 06:48 PM
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#2
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Premium Member Group: Members Posts: 227 Joined: 25-April 05 Member No.: 4,369 |
QUOTE Static noise is created by the electric field radiated by a voltage source when coupled capacitively into the instrumentation circuit. The most efficient means to combat static noise is to place the circuit inside a total coverage shield, thus isolating the wires form outside influence. A grounded shield interrupts the static noise and transports it to ground. It is important that the shield be grounded in order to reduce static noise as an ungrounded (floating) shield will not.  Notice from Klass:
Next time you Copy/Paste USE THE QUOTE TAG.
Copied: http://www.pmcwire.com/ref_instrumentation.htm Pasted: http://www.astahost.com/microphone-input-p...atic-t6880.html |
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Jul 18 2005, 03:25 AM
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#3
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Newbie [ Level 2 ] Group: Members Posts: 25 Joined: 18-July 05 Member No.: 7,191 |
NO i don't think you would have to change your soundcard,but i have a I-mac g5 with a built in mic so im not sure how you would change the mic input or adapter.
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Jul 18 2005, 05:25 AM
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#4
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Member [ Level 1 ] Group: Members Posts: 41 Joined: 29-June 05 Member No.: 6,695 |
QUOTE(Neverseen @ Jul 17 2005, 06:48 PM) Static noise is created by the electric field radiated by a voltage source when coupled capacitively into the instrumentation circuit. The most efficient means to combat static noise is to place the circuit inside a total coverage shield, thus isolating the wires form outside influence. A grounded shield interrupts the static noise and transports it to ground. It is important that the shield be grounded in order to reduce static noise as an ungrounded (floating) shield will not.  Ok, im not quite sure what any of that means, but im going to assume you do. You said something about isolating the wires and grounding it. Im guessing I will have to go out and buy somethign to accomplish this. Could you point me in the direction of exaclty what to get? |
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Jul 19 2005, 06:21 PM
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#5
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Premium Member Group: Members Posts: 258 Joined: 22-December 04 From: Online, USA Member No.: 1,840 |
There is a lot of information out there if you do a search.
Just doing a quick search, I came up with a few places which seem to have good information O'Reilly I like this one and have bookmarked it to keep. It lists several problems of recording and how to reduce noise. You might want to read this before you go out and buy anything. Digital Sound Recording I know that one time I was trying to get an audio cassette I made into my mac by using an cassette player that was powered by electricity. It produced a hum when recorded on the mac that wasn't on the original cassette. When I used a battery powered cassette player, the hum was not there when recording to the hard drive. Don't give up. You'll find a working solution. Let us know what happens. |
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Aug 3 2005, 03:17 PM
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#6
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Newbie [ Level 1 ] Group: Members Posts: 5 Joined: 3-August 05 Member No.: 7,606 |
Is the cable for your mic magnetically sheilded? If not then it is interference from a high-voltage electricity source (probably the PSU on your computer). Check to see if the mc cable is sheilded, and if it isn't, look into purchasing one that is.
EDIT: If the cable IS sheilded, it is probably the 1/8 adaptor. This link provides some insight into magnetic sheilding -Scribe- |
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Dec 6 2005, 10:10 AM
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#7
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Member [ Level 2 ] Group: Members Posts: 74 Joined: 8-October 05 From: Romania Member No.: 8,983 |
i advice you to check out if the microphone's cable is ok.... because 90% of the cables are not good if you are trying to record some music... i don't think it's the soundcard, because i had almost the same problem with a mic... and i replaced the cable and found out that it was the problem... if not, it is possible that you have an electric tension in the case.... if that is the case, this voltage interferes with the microphone's input... and it's a danger for you too...But i think the cable is responsable for this problem...
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Lo-Fi Version | Time is now: 5th December 2008 - 12:53 AM |