Re: Bad sound quality ( high pitched, almost acoustic sound etc.) integrated 6 ch sound card ( realtek drivers)
Acoustic sound? I think that is like saying "sound sound"! 
When you say high pitched, I immediately think of 2 things, fan/motor bearings or capacitors "singing" as some do when going bad.
So to start, are you 100% sure the sound is coming out of the speakers? Have you tried another set of speakers? Since all the amplification circuits are typically integrated into the speakers (usually sub-woofer), you cannot assume they all work properly.
How much free disk space do you have? If limited, sound, being a low priority process, suffers.
Poor grounding and/or poor connections are classic causes of lousy fidelity so make sure all your speaker connections are securely connected - from the sound device and out to each speaker.
Bill (AFE7Ret) Freedom is NOT Free!
2007 - 2013
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