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Re: [Xen-users] USB Audio Passthrough

On 02-06-13 11:06, Gordan Bobic wrote:

I'd like to ask if anyone managed to get USB audio passthrough working?
In order to minimize PCI passthrough usage (I get audio dropouts on PCI
audio passthrough (Intel ICH audio) lasting 10-30 seconds every few
minutes), I got a generic USB audio adapter. It works fine on bare metal
but in domU all I get is loud crackling noise instead of sound.

Could this be related to Xen USB passthrough being limited to USB 1.1
and the USB audio possibly requiring more bandwidth than that?

Has anyone got USB audio passthrough working successfully and reliably?
What USB sound module did you use?



I worked around a possibly similar problem with built-in Intel HD audio by initializing it on the dom0 (instead of hiding it) before doing the PCI passthrough.

Also got some helpful advice over USB audio before, see thread:

I'm sorry that I cannot give you more specific help, as I have no experience with USB audio myself.


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