Help learning variaudio & audiowarp

I’m new to the latest Cubase version and wondered if someone could point me to a couple of tutorials on variaudio & audiowarp as I have no idea where to start.

Thanks

youtube

Was hoping for something a bit more specific

Here’s a start.

https://www.youtube.com/watch?v=aWZCeMSlnfo

Just search on youtube for ‘Cubase 7 variaudio’, numerous returns.