Realtek AC97: accelerated speed of playback

Hi,
I have an old computer with Windows XP and very fresh Arch Linux in dualboot. Everything works fine, but sound card plays sounds, in both OS, with accelerated speed. Playback of music, or any other system sound, are maybe two times faster, than normal.
Thanks for your advices. I hope that is not a HW problem with soundcard.
Configuration of PC
MOTHERBOARD: MSI MS-6566E 1.0
CPU: Intel Celeron 2.20 GHz
SOUND: Realtek AC'97 Audio
RAM: DDR 1536 MB
Thank you. J.

OK, so you use Audacious. Start with switching output device to "hw:0" instead of "default" to ensure that we are working directly with hardware.
This probably isn't the case, but maybe your 44kHz files are played back at 48kHz without resampling. Once you switch to "hw:0", hw_params should definitely show "rate: 44100" when playing such files (or the card may refuse to play them at all if it's 48kHz-only).
It's possible that the card is stuck at higher sample rate (probably 96kHz) than software tells it to use. Enable "resample" effect plugin and tell it to output at 96kHz (or 48kHz as well, who knows what will happen).
Maybe the card thinks it's being fed 4- or 6-channel signal and sends part of samples to some phantom channels. Try changing output to "surround40" or "surround51".
Try 16 or 24 bit output format, IIRC AC97 is limited to 20 bits anyway.
Finally, there is a "speed and pitch" plugin; set both to 0.5 and all will be good, at least for Audacious

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Hey guys !!
--> I just finished downloading this file from MSI LiveMonitor !
>>>> Here's what I've done just now:
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WDM driver for Win98/WinMe/Win2000/WinXP : 5.10.0.5750
VXD driver for Win95 : 4.5.0.3019
VXD Software wavetable driver : 3.1.0.0
NT4 driver for Windows NT4 : 4.3.0.3040
NT4 software wavetable driver : 4.3.0.2002
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Realtek Sound Effect Manager(CPL) : 2.2.0.36
Realtek Sound Effect Manager(RtlCpl) : 1.0.1.38
Realtek Sound Effect Manager for NT4 : 2.3.0.3
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