Исходный код и драйвера доступны здесь
Scream - Virtual network sound card for Microsoft Windows
Scream is a virtual device driver for Windows that provides a discrete sound device. Audio played through this device is published on your local network as a PCM multicast stream.
Receivers on the network can pick up the stream and play it through their own audio outputs. Receivers are available for Unix/Linux (interfacing with PulseAudio or ALSA) and for Windows.
For the special scenario of a Windows guest on a QEMU host, @martinellimarco has contributed support for transferring audio via the IVSHMEM driver mechanism, similar to the GPU pass-through software “Looking Glass”. See the section on IVSHMEM below.
Scream is based on Microsoft’s MSVAD audio driver sample code. The original code is licensed under MS-PL, as are my changes and additions. See LICENSE for the actual license text.
Так как возникли вопросы по настройке и прочее, предлагаю создать отдельную ветку и перенести обсуждение всё сюда.
Что бы потом могли желающие найти и прочитать.