Re: digital sound processing for windows sounds not wanted
From: James W. Long (JamesLong_at_wowway.com)
Date: 12/09/04
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Date: Wed, 8 Dec 2004 22:20:30 -0500
Dear Chris:
{inline}
"Chris P. [MVP]" <msdn@chrisnet.net> wrote in message
news:3n80nhref4jr.zktenhoe9odj$.dlg@40tude.net...
> On Tue, 7 Dec 2004 19:09:55 -0500, James W. Long wrote:
>
> > Dear All:
> >
> > I hope I am in the correct group.
> >
> > I'm having a crazy problem with audo
> > and I don't understand it.
> >
> > There are four real quick parts here,
> > 1. what I had
> > 2 what I did
> > 3. Then what happened
> > 4. The question.
> >
> > Win2k Pro, Service pack 4, Directx 9.0c
> > Asus P5GDC Deluxe Board, 1 gig Ram,
> > Intel Pentium 4, 3.0GHZ CPU
> >
> > 1. What I had:
> >
> > My motherboard supports High Definition Audio Digital ouput.
> > (HD audio). Built on motherboard digital sound.
>
> This is a little OT for this group but ..
> It's all a function of the driver for the sound card. A sound card always
> uses digital processing, it is a digital component and has a DSP. The
only
> difference is whether the output gets converted back to analog for output
> or output as digital. Usually the sound card driver adds a check box in
> the mixer properties to select whether or not to use the digital output as
> SP/DIF or AC3.
>
> But I'm not sure that you've entirely explained what piece you want to NOT
> be digital. For CD playback, digital mode will always yield the hightest
> quality as you are eliminating an D/A and an A/D conversion stage.
Dear Chris:
Thank you for comming back to me. I apreciate that this is OT and you
still came back. Thanks for your time. I admit I am totally unfamilar with
this
specific aspect of the soundcard(s), no sound card I ever had ever
used the digital output mode, actually it appears to be inside windows
because windows is doing all the digital output processing, as I can see
it happening in my task manager when sounds play.
I dont use the SP/dif jack, so I am talking about the stereo ouput jack.
I'm not seeing such a checkbox, either.
Basically I want windows sounds NOT to be
reconverted to digital on the output jack
of the soundcard,. and the same for cd audio.
both of these currently affected by actions done
in windows like clicking an icon or saving a file,
anything wich utilizes CPU, because the cpu
quits processing digital output long enough to
do something else then gets back to the digitl
out and tries to catch up, then skips a few
hundred bytes etc.....and by that time
forget it, the tune is hosed.
currently all playback uses the cpu to process
and that can bee seen in my task manager as
25-30 percent for an mp3 and 40 percent or so
for an audio cd. All windows sounds too!
I am not getting wave sounds as wav sound,
All sound output is being hi-jacked by this
cpu digital processing-thing
which cant go fast enough.
seriosly speaking thats not quality.
Its not for me.
It's signal is lower volume too.
it can not keep up when the cpu is needed
elsewhere. Even my windows logon sound gets
munged over logging on, Chris.
mun'jed - a higly technical term, meaning
fubar,fried,toast,history,dust,mist,wind,zoned,laterd and wasted.
What I'm looking for is the way to put it as it was,
so that analog is present on the output jack,
and so no cpu is necessary to hear an audio cd
and windows sounds dont get interrupted by
operations.
I'm just having difficulty understanding what I have
to do to make it that way again.
Is there some registry setting,config,etc?
kill the driver?
I hope I have helped to make it more clear for you,
I dont know the correct terminology or even
pretend to understand the processes involved, so I can
only describe the effects I experience and see and hear.
Thanks,
James W. Long
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