[LAU] KVM virtual machines and jack

Reuben Martin reuben.m at gmail.com
Sat Dec 5 23:20:22 EST 2009


On Sat, Dec 5, 2009 at 8:39 PM, Paul Davis <paul at linuxaudiosystems.com> wrote:
> On Sat, Dec 5, 2009 at 2:51 PM, Reuben Martin <reuben.m at gmail.com> wrote:
>> Does anybody know if it is possible to run a guest OS under KVM and
>> have the ins and outs of the virtual audio device presented to that
>> OS, interface with JACK on the host linux system?
>>
>> I've done a little googling on this but couldn't find anything.
>> (mostly because "jack" is ambiguous, and "KVM" can mean a lot of
>> things)
>
> unless the VM software that provides fake audio devices to the guest
> OS knows about JACK internally or can be configured to use it, this is
> not happening.
> on the other hand, if the VM software can simply use the ALSA JACK
> plugin, that could potentially work (lots and lots of latency though).
>

In that case I guess my best bet would probably be to petition KVM
development to add support for JACK. Currently I believe it supports
ALSA, OSS, SDL and PulseAudio.

-Reuben



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