<html>
<head>
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p><font face="Verdana">Thank you Andreas for the information. My
issue was not with the normal or test builds but the build from
SVN and that still does not work ( Now at r67008 ). I used to be
able to build with audio_stable but since that was removed
approx 8 months ago sound just does not work. Skips and the
logs with audio debug are full of errors about stream being full
expect skipping.</font></p>
<p><font face="Verdana">Perry<br>
</font></p>
<br>
<div class="moz-cite-prefix">On 05/24/2017 12:53 PM, Andreas Löffler
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:f2e073bd-cefe-db07-676d-7384bd06c771@oracle.com">Hello
Perry/all,
<br>
<br>
just wanted to let you know that there's a new 5.1 test build [1]
r115730 which should have audio improvements regarding HDA
emulation in combination with Windows 10 AU (Anniversary Update) +
CU (Creators Update) guests.
<br>
<br>
Happy testing,
<br>
Andreas
<br>
<br>
[1] <a class="moz-txt-link-freetext" href="https://www.virtualbox.org/wiki/Testbuilds">https://www.virtualbox.org/wiki/Testbuilds</a>
<br>
<br>
<br>
<br>
Kind regards / Mit freundlichen Grüßen
<br>
<br>
******************************************************************
<br>
Andreas Löffler | VirtualBox Engineering
<br>
Principal Software Engineer | Oracle Virtualization
<br>
<br>
ORACLE Deutschland B.V. & Co. KG
<br>
Hauptverwaltung: Riesstraße 25, D-80992 München
<br>
Registergericht: Amtsgericht München, HRA 95603
<br>
<br>
Komplementärin: ORACLE Deutschland Verwaltung B.V.
<br>
Hertogswetering 163/167, 3543 AS Utrecht, Niederlande
<br>
Handelsregister der Handelskammer Midden-Nederland, Nr. 30143697
<br>
Geschäftsführer: Alexander van der Ven, Jan Schultheiss, Val Maher
<br>
<br>
Green Oracle <a class="moz-txt-link-rfc2396E" href="http://www.oracle.com/commitment"><http://www.oracle.com/commitment></a>
<br>
Oracle is committed to developing practices and products that
<br>
help protect the environment
<br>
<br>
<br>
<br>
<br>
On 27.04.2017 14:16, Perry Halbert wrote:
<br>
<blockquote type="cite">Good day Frank,
<br>
<br>
<br>
I too was surprised that there was an improvement. I look at the
changes
<br>
and didn't really see any audio areas specifically worked on so
I
<br>
calculated that the timing or buffers had been changed in some
way on
<br>
the host side code. To tell you the truth it always looked like
a
<br>
buffer issue to me. Anyway it had improved for me for several
days and
<br>
not anything that I have done, but today it is back to the same
old ways
<br>
of the stuttering and audio out of sync with the video plus the
whole
<br>
video skips ahead a second so even the video is jumpy.
<br>
<br>
I will continue to monitor this and let you know what I find,
maybe not
<br>
right away this time.
<br>
<br>
Best regards,
<br>
Perry
<br>
<br>
<br>
On 04/27/2017 02:30 AM, Frank Mehnert wrote:
<br>
<blockquote type="cite">Hi Perry,
<br>
<br>
On Freitag, 21. April 2017 11:02:33 CEST Perry Halbert wrote:
<br>
<blockquote type="cite">As of today r66644 from SVN, audio is
much improved but not fixed yet.
<br>
The stutter is improved but now there are popping issues.
The
<br>
additional logging shows a greatly reduced amount of the
stuttering due
<br>
to stream full but they still happen.
<br>
<br>
Host Linux 64-bit guest Mint-17 64-bit and tried both ac97
and intel hd
<br>
audio. I sounds like the intel hd audio might be better than
the ac97 to
<br>
my ears but can not provide empirical data to support the
assumption.
<br>
<br>
I don't do a lot with Windows these days but it appears that
the audio
<br>
in a Win-7 guest has been acceptable all along if that is of
interest to
<br>
you.
<br>
</blockquote>
thank you for testing. Some status update regarding sound in
trunk and in the
<br>
5.1.x branch:
<br>
<br>
At the moment the code between trunk and 5.1 drifts away a
little bit. In
<br>
principle trunk has the more modern audio framework, in
particular it moves
<br>
more audio work from the EM threads (the VCPU emulation
threads) to separate
<br>
threads. This is good for the timing and therefore good for
audio quality.
<br>
Trunk audio didn't change for some weeks (it still needs
improvements),
<br>
therefore we are slightly surprised that you experience
improvements with
<br>
the latest trunk updates. I'm also not aware of any recent VMM
updates which
<br>
would improve timing...
<br>
<br>
The 5.1.x branch still uses quite old audio code. We don't
want to do
<br>
fundamental changes in 5.1.x but we need to fix certain cases.
Especially
<br>
we are aware that Windows 10 AU guests don't work well with
5.1.x (including
<br>
5.1.20). Unfortunately fixing this is more complicated and
conflicts with
<br>
our goal to keep the changes in 5.1.x minimal. I can only say
that we are
<br>
trying to improve the situation with Windows 10 AU+ guests but
we still don't
<br>
have a final solution.
<br>
<br>
Kind regards,
<br>
<br>
Frank
<br>
</blockquote>
<br>
<br>
<br>
_______________________________________________
<br>
vbox-dev mailing list
<br>
<a class="moz-txt-link-abbreviated" href="mailto:vbox-dev@virtualbox.org">vbox-dev@virtualbox.org</a>
<br>
<a class="moz-txt-link-freetext" href="https://www.virtualbox.org/mailman/listinfo/vbox-dev">https://www.virtualbox.org/mailman/listinfo/vbox-dev</a>
<br>
<br>
</blockquote>
<br>
</blockquote>
<br>
</body>
</html>