[vfio-users] PCIe Sound Card VFIO Pass through Sounds Terrible (link to audio file)

[sL1pKn07 SpinFlo]

yes. i have working it, but yes, with a very little cracking some
times. but is perfect payable (used in Worl of Tanks)

2016-09-30 15:27 GMT+02:00 Rokas Kupstys <rokups at zoho.com>:
> You have it working? I tried (although through alsa) but sound was very
> poor quality.
>
> Rokas Kupstys
>
> On 2016.09.30 16:19, sL1pKn07 SpinFlo wrote:
>> why not use the sound card through pulseaudio?
>>
>> (damn you , ML/gmail)
>>
>> 2016-09-30 13:00 GMT+02:00 Jonathan Scruggs <j.scruggs at gmail.com>:
>>> Hi all,
>>>
>>> I have a PCIe sound card that I wish to pass through to a Windows 10 guest
>>> using VFIO, but it sounds terrible.
>>>
>>> Kernel: Linux Beast 4.7.5-gentoo #5 SMP PREEMPT Thu Sep 29 11:26:39 BST 2016
>>> x86_64 Intel(R) Core(TM) i7-5930K CPU @ 3.50GHz GenuineIntel GNU/Linux
>>>
>>> Qemu version: app-emulation/qemu-2.7.0-r4::gentoo
>>>
>>> Libvirt version: app-emulation/libvirt-2.2.0
>>>
>>> The sound card is:
>>> 09:00.0 Audio device: Creative Labs Sound Core3D [Sound Blaster Recon3D /
>>> Z-Series] (rev 01)
>>>
>>> The relevant part of the XML file is:
>>>     <hostdev mode='subsystem' type='pci' managed='yes'>
>>>       <driver name='vfio'/>
>>>       <source>
>>>         <address domain='0x0000' bus='0x09' slot='0x00' function='0x0'/>
>>>       </source>
>>>       <address type='pci' domain='0x0000' bus='0x00' slot='0x0a'
>>> function='0x0'/>
>>>     </hostdev>
>>>
>>> The Audio I'm trying to play: https://www.youtube.com/watch?v=jc8Mm5TtIhg
>>>
>>> What it actually sounds like:
>>> https://drive.google.com/file/d/0B12vXeyT8c8HZ0RqMmpnWDZUdXM/view?usp=sharing
>>>
>>> To record the Audio, I plugged the cable into a recorder instead of going
>>> through speakers or line in on the host to see if it was any other device,
>>> but it sounds the same on all.
>>>
>>> I hope you can help.
>>> Jon
>>>
>>> _______________________________________________
>>> vfio-users mailing list
>>> vfio-users at redhat.com
>>> https://www.redhat.com/mailman/listinfo/vfio-users
>>>
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