[CentOS] Flash streams sound distorted
fredex
fredex at fcshome.stoneham.ma.us
Sun Aug 20 22:07:35 UTC 2006
On Sun, Aug 20, 2006 at 03:12:48PM -0600, Stephen John Smoogen wrote:
> On 8/20/06, fredex <fredex at fcshome.stoneham.ma.us> wrote:
> >Hi gang!
> >
> >I'm hoping for some advice here,...
> >
> >I've been having this problem for a while and have come to the point where
> >I need someone else's guidance/suggestions/help...
> >
> >I'm running a Cenotos-4 system. It was originally a TAO Linux-1 system,
> >that was upgraded to Tao-4, and subsequently switched (via yum, using the
> >procedure created by the Tao maintainer with--I assume--assitance from the
> >Centos maintainers) to Centos-4.
> >
>
> I have seen this issue with some sound-cards.. what is the sound card
> you are using, what are the options that are in /etc/modprobe.conf,
> and what is your other hardware (memory, cpu, chipset.)
>
NOTE that all sound is fine EXCEPT FOR FLASH.
> There are 3 reasons I have found for sound changes:
> 1) Chipset issues that can be corrected with a bios update (if the
> sound is embedded). The newer kernel driver expects certain access to
> the hardware and the BIOS needs a kick.
It's a Gigabyte GA-7N400 Pro2 (rev2) Athlon motherboard, with builtin
sound support. It USED to work...
It has the latest BIOS available (7n400p2.fk)
Here's /etc/modules.conf:
alias usb-controller usb-ohci
alias usb-controller1 ehci-hcd
alias sound-slot-0 i810_audio
post-install sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -L >/dev/null 2>&1 || :
pre-remove sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -S >/dev/null 2>&1 || :
alias eth0 r8169
# I2C module options
alias char-major-89 i2c-dev
# it8212 raid controller
#alias block-major-8 iteraid
alias char-major-195 nvidia
> 2) Chipset issues that need an updated kernel module. ALSA changes are
> a major issue. I had to keep getting dkms modules for my sound card
> for a while because the newer ALSA covered the card but the kernel
> didnt.
According to the MB manual, the sound is "realtek ALC655 CODEC".
Here's the output of lsmod:
# lsmod
Module Size Used by
vfat 14529 0
fat 44001 1 vfat
usb_storage 60297 0
nls_utf8 2113 0
tun 9153 0
smbfs 66361 0
nvidia 3926908 12
it87 19817 0
i2c_sensor 3521 1 it87
i2c_isa 2241 0
lp 12077 0
md5 4033 1
ipv6 235137 20
autofs4 24773 0
i2c_dev 11329 0
i2c_core 22081 4 it87,i2c_sensor,i2c_isa,i2c_dev
vmnet 37532 8
parport_pc 24577 1
parport 37129 2 lp,parport_pc
vmmon 110724 0
sunrpc 162725 1
dm_mod 57557 0
button 6481 0
battery 8901 0
ac 4805 0
joydev 10241 0
ohci_hcd 21713 0
ehci_hcd 30917 0
shpchp 82373 0
snd_intel8x0 33897 1
snd_ac97_codec 63889 1 snd_intel8x0
snd_pcm_oss 49017 0
snd_mixer_oss 17985 1 snd_pcm_oss
snd_pcm 96841 2 snd_intel8x0,snd_pcm_oss
snd_timer 29893 1 snd_pcm
snd_page_alloc 9673 2 snd_intel8x0,snd_pcm
snd_mpu401_uart 8769 1 snd_intel8x0
snd_rawmidi 26597 1 snd_mpu401_uart
snd_seq_device 8137 1 snd_rawmidi
snd 55461 11 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
soundcore 9889 1 snd
r8169 19657 0
floppy 58481 0
ext3 116809 5
jbd 71385 1 ext3
sata_nv 9285 0
libata 56477 1 sata_nv
sd_mod 17217 0
scsi_mod 121933 3 usb_storage,libata,sd_mod
> 3) Flash is optimized for Flash-9 and doesnt sound good in Flash-7
No solution for this one, I guess?
> >Ever since the upgrade from tao-1 to tao-4, Flash audio is horribly
> >distorted.
> >
> >I've reinstalled the flash-7 plugin more than once, most recently today.
> >Today I also went through the entire system making sure there is only
> >a single copy of the files flashplayer.xpt and libflashplayer.so, and
> >that they are the newest ones from today.
> >
> >What brings it to a head today is that my local NPR station appears to have
> >switched to providing their audio stream as flash. At least I am no longer
> >offered any choice (it used to allow us to choose windows media, real, or
> >quicktime, all of which worked with mplayer), flash being what I get.
> >
> >I'm open to suggestions. Thanks in advance!
> >
> >Fred
> >--
> >---- Fred Smith -- fredex at fcshome.stoneham.ma.us
> >-----------------------------
> > But God demonstrates his own love for us in this:
> > While we were still sinners,
> > Christ died for us.
> >------------------------------- Romans 5:8 (niv)
> >------------------------------
> >
> >
> >_______________________________________________
> >CentOS mailing list
> >CentOS at centos.org
> >http://lists.centos.org/mailman/listinfo/centos
> >
> >
> >
> >
>
>
> --
> Stephen J Smoogen. -- CSIRT/Linux System Administrator
> How far that little candle throws his beams! So shines a good deed
> in a naughty world. = Shakespeare. "The Merchant of Venice"
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--
---- Fred Smith -- fredex at fcshome.stoneham.ma.us -----------------------------
"Not everyone who says to me, 'Lord, Lord,' will enter the kingdom of
heaven, but only he who does the will of my Father who is in heaven."
------------------------------ Matthew 7:21 (niv) -----------------------------
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