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SigmaTel High Defenition Audio CODEC

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I have Dell Inspirion 1501. The sound card is SigmaTel High Defenition Audio CODEC.
I've noticed permanent sound while using either head set or acoustic systems or built-in sound system. It sounds like crackle or crepitation. I've reinstalled drives but it hasn't helped.
What else can be done in this situation?
Feb 20 '08 #1
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