Audio capture for multiple VMs problem since 5.0 version -> duplicate of #16105.

[antonIO]

I have 3 virtual machines, all with android x86 image, and using audio input device for capturing audio. On host machine I run linux and using pulseaudio. After booting up the VM, it's up with sink name same "Virtualbox: Pulseaudio", when I booting up second VM it also starts with sink name "Virtualbox: Pulseaudio"...(I see it in pavucontrol application on Inputs tab). No possibility to apply separate inputs for different VMs(because all of them has same name of sink in pavucontrol). Also no possibility to change sink name, because starting from version 5.0 all VMs starts with sink name "VirtualBox: Pulseaudio", in older versions(4.3.40 for examle) VM create the sink name same as virtual machine name.("VBox:<vmname>") No workaround for this problem, only rollback to version 4.*

[Socratis]

Duplicate of #16105.