I recently put gentoo on my laptop after using it on my desktop for a
long time. I usually use my laptop as a wireless dumb terminal hooked
up to company servers, but sometimes I have to give video presentations
with full audio and video (divx encoded).

The problem is that the sound on my laptop just sounds terrible. The
sound works and I can play wavs or oggs with xmms, but their is always a
cracking sound full of static along with it. I know it is not the
speakers because even with high fidelity headphones it sounds bad.

I went to the alsa site and various people say that not all via82xx
chips are exactly alike, but they still get it to work. But is just
sounds terrible.

I have an Averatec 3150H that has a via motherboard with a AMD athlon-xp
mobile 1600+ chip.

grep audio /proc/pci

outputs: via vt8233

I compiled the kernel with sound support and via chipset sound support
but not OSS. Also, all of it is built directly into the kernel, they
are not modules.

Can someone please help, I am almost ready to give up.

Respectfully,
IML

On Wed, 10 Sep 2003 09:29:55 -0700, IML wrote:

> I recently put gentoo on my laptop after using it on my desktop for a
> long time. I usually use my laptop as a wireless dumb terminal hooked
> up to company servers, but sometimes I have to give video presentations
> with full audio and video (divx encoded).
>
> The problem is that the sound on my laptop just sounds terrible. The
> sound works and I can play wavs or oggs with xmms, but their is always a
> cracking sound full of static along with it. I know it is not the
> speakers because even with high fidelity headphones it sounds bad.
>
> I went to the alsa site and various people say that not all via82xx
> chips are exactly alike, but they still get it to work. But is just
> sounds terrible.
>
> I have an Averatec 3150H that has a via motherboard with a AMD athlon-xp
> mobile 1600+ chip.
>
> grep audio /proc/pci
>
> outputs: via vt8233
>
> I compiled the kernel with sound support and via chipset sound support
> but not OSS. Also, all of it is built directly into the kernel, they
> are not modules.
>
> Can someone please help, I am almost ready to give up.
>

You compiled alsa into the kernel? or I do not understand anything. You're
supposed to have all the sound modules needed compiled as modules in
kernel or not have them at all otherwise AFAIK snd-via82xx will fail to
load!

USE="alsa"

#emerge alsa-driver
#rc-update add alsasound boot
#cat /etc/modules.d/alsa |grep via
alias snd-card-0 snd-via82xx

On 2003-09-10, IML <isaimichel@yahoo.com.mx> wrote:
>
> The problem is that the sound on my laptop just sounds terrible. The
> sound works and I can play wavs or oggs with xmms, but their is always a
> cracking sound full of static along with it. I know it is not the

Ensure that the operating sample rate is set to 48000 and not a possible
default of 44100. Don't worry about mismatching digital audio recorded at
44.1 - the via82xx seems to prefer to do it's own interpolation, and as
long as it's running at 48KHz, it's happy.

That's how I've got Alsa set on my EPIA M10000.
--
Ian Tindale

"Ian Tindale" <me@privacy.net> wrote in message
news:slrnbm1o2r.4a4.me@privacy.net...
> On 2003-09-10, IML <isaimichel@yahoo.com.mx> wrote:
> >
> > The problem is that the sound on my laptop just sounds terrible.
The
> > sound works and I can play wavs or oggs with xmms, but their is
always a
> > cracking sound full of static along with it. I know it is not the
>
> Ensure that the operating sample rate is set to 48000 and not a
possible
> default of 44100. Don't worry about mismatching digital audio recorded
at
> 44.1 - the via82xx seems to prefer to do it's own interpolation, and
as
> long as it's running at 48KHz, it's happy.

Where is this default rate stored? I have an EPIA 800 and have good
audio coming out when using mplayer, but when I try to suck digital
audio from a TV tuner card (BT878 based), I just get crackling hissing
noise. I'm wondering if this has anything to do with my problem. I've
read that some TV cards don't have the internal connections for digital
audio out, even though the digitizer is present. I'd like to get some
audio out, without using a cheesy jumper cable to the motherboard.

michael brown

Ian Tindale escribió:
> On 2003-09-10, IML <isaimichel@yahoo.com.mx> wrote:
>
>>The problem is that the sound on my laptop just sounds terrible. The
>>sound works and I can play wavs or oggs with xmms, but their is always a
>>cracking sound full of static along with it. I know it is not the
>
>
> Ensure that the operating sample rate is set to 48000 and not a possible
> default of 44100. Don't worry about mismatching digital audio recorded at
> 44.1 - the via82xx seems to prefer to do it's own interpolation, and as
> long as it's running at 48KHz, it's happy.
>
> That's how I've got Alsa set on my EPIA M10000.

I am testing a 44.1KHz sound, so I used sox to make it 48KHz.
Everything works nicely. Thanks a lot.

But can you please tell me how to force alsa to play everything at
48KHz. That is really necessary because I cannot recompile all my
presentations.

Thanks in advance.

Respectfully,
IML

By the way, sorry to the others about saying I compiled alsa inside the
kernel. I meant to say that sound support was compiled in as a module,
just like it says in the documentation.