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