VirtualBox 5.1 RC1 ICH AC97 volume control is different

Postings relating to old VirtualBox pre-releases
Post Reply
mhanor
Volunteer
Posts: 321
Joined: 7. Oct 2009, 12:40
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: various

VirtualBox 5.1 RC1 ICH AC97 volume control is different

Post by mhanor »

Because of the VERR_NO_MORE_HANDLES issue, I can't compare it to the betas, but the RC1 and the 5.0.24 handle the volume control very differently. The RC1 is almost mute at low volume settings, tested with Windows XP and Ubuntu 16.04 x64 live. Is this expected?
Attachments
VBox.log
(93.73 KiB) Downloaded 30 times
pentagonik
Oracle Corporation
Posts: 283
Joined: 19. May 2008, 16:09
Primary OS: Ubuntu other
VBox Version: PUEL
Guest OSses: Too many to specify!
Contact:

Re: VirtualBox 5.1 RC1 ICH AC97 volume control is different

Post by pentagonik »

Yes, this is expected to be like that. We now also take the master volume control into account, which should make the volume control more fine grained, also with regards to amplifier settings in Linux guests.
mhanor
Volunteer
Posts: 321
Joined: 7. Oct 2009, 12:40
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: various

Re: VirtualBox 5.1 RC1 ICH AC97 volume control is different

Post by mhanor »

With the guest volume control below 50%, the actual volume is very low. Below 20-30% nothing is audible. It doesn't appear normal to me.
pentagonik
Oracle Corporation
Posts: 283
Joined: 19. May 2008, 16:09
Primary OS: Ubuntu other
VBox Version: PUEL
Guest OSses: Too many to specify!
Contact:

Re: VirtualBox 5.1 RC1 ICH AC97 volume control is different

Post by pentagonik »

Which guest mixer control within the XP guest did you use to change the volume? Can you please elaborate how you perceived the volume control before RC1 / with latest 5.0.x?
mhanor
Volunteer
Posts: 321
Joined: 7. Oct 2009, 12:40
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: various

Re: VirtualBox 5.1 RC1 ICH AC97 volume control is different

Post by mhanor »

I use the usual Master Volume control, with both Windows XP and Ubuntu 16.04. The actual volume is very low compared to 5.0.xx, using the same mixer setting (the setting is usually below 50-60%). The volume control doesn't appear to be linear, but logarithmic.
Last edited by mhanor on 8. Jul 2016, 23:33, edited 1 time in total.
mhanor
Volunteer
Posts: 321
Joined: 7. Oct 2009, 12:40
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: various

Re: VirtualBox 5.1 RC1 ICH AC97 volume control is different

Post by mhanor »

The actual volume control is made within the 30-70% Volume Master control range. Beyond that (the extremities) you get either mute or full volume.
mhanor
Volunteer
Posts: 321
Joined: 7. Oct 2009, 12:40
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: various

Re: VirtualBox 5.1 RC1 ICH AC97 volume control is different

Post by mhanor »

I've just tested Ubuntu 16.04 x64 as host, with Ubuntu 16.04 x64 live. It's the same issue. Sources of sound: youtube via firefox and bb (the ascii demo)
Attachments
VBox.log
(100.94 KiB) Downloaded 29 times
Perryg
Site Moderator
Posts: 34369
Joined: 6. Sep 2008, 22:55
Primary OS: Linux other
VBox Version: OSE self-compiled
Guest OSses: *NIX

Re: VirtualBox 5.1 RC1 ICH AC97 volume control is different

Post by Perryg »

I too see this but only when the host audio is throttled ( not 100% ). The audio seems to kick in at 20% and for me it does work linear up to 100%. I tested the with both AC97 and Intel-HD. As far as I can remember this is the way it has always worked with the exception of being able to use the Intel-HD audio that has been introduced recently. ( not sure if it is in the RC yet though ). Normally I leave the guest audio at 100% and use the host audio to adjust the main level as it works for what I do.
mhanor
Volunteer
Posts: 321
Joined: 7. Oct 2009, 12:40
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: various

Re: VirtualBox 5.1 RC1 ICH AC97 volume control is different

Post by mhanor »

I have filed a bug report (15598) on the bugtracker
Post Reply