system/devices/virtio-snd.rst

1 virtio sound
4 This document explains the setup and usage of the Virtio sound device.
5 The Virtio sound device is a paravirtualized sound card device.
8 --------------------
10 Virtio sound requires a guest Linux kernel built with the
14 -----------
16 Virtio sound implements capture and playback from inside a guest using the
19 Device properties
20 -----------------
22 The Virtio sound device can be configured with the following properties:
31 --------
33 Add an audio device and an audio backend at once with ``-audio`` and ``model=virtio``:
35  * pulseaudio: ``-audio driver=pa,model=virtio``
36    or ``-audio driver=pa,model=virtio,server=/run/user/1000/pulse/native``
37  * sdl: ``-audio driver=sdl,model=virtio``
38  * coreaudio: ``-audio driver=coreaudio,model=virtio``
42 To specifically add virtualized sound devices, you have to specify a PCI device
43 and an audio backend listed with ``-audio driver=help`` that works on your host
48   -device virtio-sound-pci,audiodev=my_audiodev \
49   -audiodev alsa,id=my_audiodev