voice chat under win2k: voice pitch wrong, deep voice (3)

voice chat under win2k: voice pitch wrong, deep voice (3)

Post by Sven Hol » Fri, 12 Sep 2003 23:22:04


I presumed, here are the experts to help with voice over ip problems...
Am I wrong? Please, someone, give me a hint how to solve my voice chat
problem (see below). Reinstalling or using XP is NO solution, by the
way. Thanks.

Tried google and forums in vain for this problem...

My system: windows 2000, sp4, onboard via ac97 sound

Why is it that each and every voice over ip program (voice chat,
internet telephony), such as netmeeting, speakfreely, teamspeak etc.,
doesn't work for me right under windows 2000?

"Doesn't work" means:
My own voice is heard by others as very, very slow, deep, roaring like a
lion, while I hear the others all right.

The same voice speed/pitch phenomenon happens when I just do a local
loopback test!

The problem only is under windows 2000, while at the same computer
windows xp and Linux don't have this problem!

Anyone else having had this problem under windows 2000? Could you solve

I already had uninstalled all my sound drivers, audio codecs etc and
reinstalled again, but the problem with my voice speed (pitch) didn't go

Please, someone answer to this article, hopefully with a way
to find a solution.

Many thanks

voice chat under win2k: voice pitch wrong, deep voice (3)

Post by Sven Hol » Sat, 13 Sep 2003 00:11:27

Hello and thanks for an answer!

Well, it really looks like some kind of a sampling rate issue.

The problem is:
I do already use the same VIA sound driver (exactly the same package and
version) as I do under XP, were I don't have this problem at all (on the
same computer, same hardware, same software settings!!).

I don't see any place where I could change sample rates for voice over
ip programs like "teamspeak", "speakfreely". It doesn't matter what kind
of compression method I chose, I get always the same bad effect: a much
too deep and too slow, low pitched voice.

I think, it must be in the windows audio codecs somewhere, but as I
said, I already uninstalled them completely (in "safe mode") and only
gradually reinstalled them. The problem was there from the beginning
again! I am out of ideas.

I don't want to use XP, because there are different issues, in my case.
So I would really like to use windows 2000 for voip, too.

I also installed, for a test, an older version of my sound driver. Same

As I found, in the meantime, there is only one voip program which seems
to give me a normal voice: "teamsound". But this one appears to be
different, because even under XP I had to install an additional gsm
codec which wasn't there when I had the program installed.

All the other voip programs, however, seem to user other codecs, and
none of them works for me under windows 2000. Nevertheless, everything
audio related (except voip) works perfectly otherwise, even under
windows 2000.

To the experts:
What could I do to trace the problem?
Are people here who use windows 2000 and voip? What codecs do you have

thanks again


voice chat under win2k: voice pitch wrong, deep voice (3)

Post by Sven Hol » Sat, 13 Sep 2003 10:35:36

You made me curious, too. So I installed xlite.

Had a hard time finding out how this thing works and also how to do an
echo test, until I realized, I have to use Free World Dialup and NOT
just AddaLine, oh yeah.

Well, I finally did the echo test (dialing 613), and what can I say?
Whatever codec I activated/disabled inside the program, I got the same
bad result under windows 2000, a roaring, very low and deep voice.

I also tried this under windows xp, and again, it worked perfectly here.

I certainly have no more ideas. Is voip a fundamental problem under
windows 2000, or are some of you successful there?


voice chat under win2k: voice pitch wrong, deep voice (3)

Post by Arnold Lig » Sat, 13 Sep 2003 19:26:06

I have seen VoIP implementations in Win2000 a number of times. Most
recently with 40 softphones running Win2000. I think, probably you as
well, that the issue is very strange.

Normally H.323 will negotiate a codec to be used for the conversation,
if there is no codec match IMHO you will hear nothing. IMHO you
therefore cannot have a codec mismatch problem, since you are hearing
sound. You said you have de-installed en re-installed all codecs. I
presume you did this of the original Win2000 CD?

The only thing I can imagine at this moment is that you have a
sound-modifier installed? I've seen an app running once that was able to
transform sound on the fly, really cool all of a sudden you could sound
like James Earl Jones or whoever... probably this is not installed but I
just need to check..

Did you try just one machine or different PC's running 2000 ?