Strange sound from Laptop, Microphone, Speakers or Soundcard?

Posted by David Schilling on Super User See other posts from Super User or by David Schilling
Published on 2012-12-10T15:53:38Z Indexed on 2012/12/10 17:07 UTC
Read the original article Hit count: 268

Filed under:

windows-7

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sound

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speakers

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mic

I have recently purchased a second hand computer. There didn't seem to be anything wrong with it on purchasing, however recently I have noticed a small issue.

Any time I play sound or listen through my headphones, I can hear what seems to be the CPU working (ie when beginning a new task, there is a small crackling). Also if I tap my laptop I can hear the sound louder, as if it is being picked up by the mic and then playing that sound in real time through the speakers or headphones.

I have tried reading other topics but cannot find an answer to this question.

These are the specs I am running on;

Windows 7 Home Premium 32bit
Pentium Dual Core CPU T4300 @ 2.10Ghz 2.10Ghz

I hope someone can help me with this issue, it would be much appreciated.

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