redora14声音不清

[root@localhost hong]# lsmod
Module Size Used by
fuse 51432 3
ebtable_nat 1431 0
ebtables 12142 1 ebtable_nat
ipt_MASQUERADE 1765 3
iptable_nat 3945 1
nf_nat 16298 2 ipt_MASQUERADE,iptable_nat
bridge 57131 0
stp 1438 1 bridge
llc 3754 2 bridge,stp
deflate 1543 0
zlib_deflate 16199 1 deflate
ctr 2953 0
camellia 17759 0
cast5 15276 0
rmd160 6136 0
crypto_null 2142 0
ccm 6285 0
serpent 18049 0
blowfish 7246 0
twofish 5395 0
twofish_common 12658 1 twofish
ecb 1595 0
xcbc 1991 0
cbc 2161 0
sha256_generic 11347 0
sha512_generic 6638 0
des_generic 15895 0
aes_i586 7138 0
aes_generic 26460 1 aes_i586
ah6 4471 0
ah4 3939 0
esp6 3905 0
esp4 4104 0
xfrm4_mode_beet 1610 0
xfrm4_tunnel 1439 0
tunnel4 2005 1 xfrm4_tunnel
xfrm4_mode_tunnel 1418 0
xfrm4_mode_transport 981 0
xfrm6_mode_transport 1013 0
xfrm6_mode_ro 858 0
xfrm6_mode_beet 1423 0
xfrm6_mode_tunnel 1455 0
ipcomp 1585 0
ipcomp6 1602 0
xfrm_ipcomp 3353 2 ipcomp,ipcomp6
xfrm6_tunnel 3145 1 ipcomp6
tunnel6 1880 1 xfrm6_tunnel
af_key 22999 0
sunrpc 165482 1
ip6t_REJECT 3470 2
nf_conntrack_ipv6 14441 2
ip6table_filter 1207 1
ip6_tables 9929 1 ip6table_filter
ipv6 229420 41 ah6,esp6,xfrm6_mode_beet,xfrm6_mode_tunnel,ipcomp6,xfrm6_tunnel,tunnel6,ip6t_REJECT,nf_conntrack_ipv6
uinput 5228 0
snd_ens1371 15976 2
gameport 7804 1 snd_ens1371
snd_rawmidi 16580 1 snd_ens1371
snd_ac97_codec 89730 1 snd_ens1371
ac97_bus 922 1 snd_ac97_codec
snd_seq 43447 0
snd_seq_device 5056 2 snd_rawmidi,snd_seq
snd_pcm 61769 2 snd_ens1371,snd_ac97_codec
snd_timer 15435 2 snd_seq,snd_pcm
ppdev 6808 0
parport_pc 17897 0
parport 26215 2 ppdev,parport_pc
microcode 11139 0
i2c_piix4 10534 0
snd 47357 11 snd_ens1371,snd_rawmidi,snd_ac97_codec,snd_seq,snd_seq_device,snd_pcm,snd_timer
pcnet32 26409 0
mii 3578 1 pcnet32
soundcore 5088 1 snd
i2c_core 21328 1 i2c_piix4
vmware_balloon 5280 0
snd_page_alloc 6180 1 snd_pcm
BusLogic 59728 2
[root@localhost hong]# lsmod --help
Usage: lsmod
[root@localhost hong]# modinfo snd_ac97_codec
filename: /lib/modules/2.6.35.6-45.fc14.i686/kernel/sound/pci/ac97/snd-ac97-codec.ko
license: GPL
description: Universal interface for Audio Codec '97
author: Jaroslav Kysela <perex@perex.cz>
srcversion: 3009EB196386048EFE786A8
depends: snd,ac97_bus,snd-pcm
vermagic: 2.6.35.6-45.fc14.i686 SMP mod_unload 686
parm: enable_loopback:Enable AC97 ADC/DAC Loopback Control (bool)
parm: power_save:Automatic power-saving timeout (in second, 0 = disable). (int)

谁看懂啊！怎么才能设置好？