Headphones not working with Virtual Machine

If headphones are not working with the virtual machine, follow these instructions, i.e., enable enhanced session mode, install guest additions, etc.
ZDNet

Goodbye, VirtualBox - I found a better, more reliable VM manager for Linux

If you need to use virtual machines on Linux, try Virt-Manager. Virt-Manager is more reliable than VirtualBox. Virt-Manager is completely free and open-source. I'm a long-time supporter of VirtualBox.
CNET

If You've Ever Ruined Sweaters in the Wash, Whirlpool's New Machine Has a Fix

David lives in Brooklyn where he's spent more than a decade covering all things edible, including meal kit services, food subscriptions, kitchen tools and cooking tips. David earned his BA from ...
IEEE

Virtual Synchronous Machine Design for Islanded Microgrids Using the Extended Impedance Criterion With Grid Frequency Dynamics Included

Abstract: Virtual synchronous machine (VSM) control is commonly used to control power converters in islanded microgrids (MGs). Frequently, the dynamic model of the MG is unknown and, therefore, the ...