mplayer播放杂音特别大

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mplayer播放杂音特别大
安装mplayer-1.0pre8-0.7.20060418.i386.rpm后播放时全是杂音，提示Linux RTC init error in ioctl (rtc_irqp_set 1024): Permission denied
Try adding "echo 1024 > /proc/sys/dev/rtc/max-user-freq" to your system startup scripts.

输出为alsa或oss都不行。而xine和vlc都正常。请问各位应该如何解决？

[shao@shao ~]$ gmplayer 2.mp3
MPlayer dev-Fedora-GS-CVS-060418-04:13-4.1.0 (C) 2000-2006 MPlayer Team
CPU: Advanced Micro Devices Sempron/Athlon MP/XP/XP-M Barton,Thorton (Family: 6, Stepping: 0)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
Compiled with runtime CPU detection.



Linux RTC init error in ioctl (rtc_irqp_set 1024): Permission denied
Try adding "echo 1024 > /proc/sys/dev/rtc/max-user-freq" to your system startup scripts.
Playing /home/shao/2.mp3.
Audio file file format detected.
Clip info:
Title: I'm Gonna Getcha (Good) [Count
Artist: Shania Twain
Album: Up!
Year:
Comment:
Track: 2
Genre: Country
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 44100 Hz, 2 ch, s16le, 192.0 kbit/13.61% (ratio: 24000->176400)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
alsa-init: using device hw:0,0
alsa: 44100 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little Endian
AO: [alsa] 44100Hz 2ch s16le (2 bytes per sample)
Video: no video
Starting playback...
A:   8.0 (08.0) of 244.0 (04:04.0)  2.8%
alsa-uninit: pcm closed

Exiting... (Exit)