When I have to talk to my husband that I know will cause me to have a meltdown, I have taken to sending him an email and it actually is working. I am tons better typing my thoughts than speaking them.
My husband also thinks the same that if I know what is "wrong" with me, then I can work to get better. Like recently I discovered why I complicate things, because I concentrate on the details and not the bigger picture. Well my husband says: since you now know what you are doing, you can look at the bigger picture. Lol if only it were that easy!
When I am animated my voice raises but when I am angry it does too. So if I am excited, my husband now uses his hand in a downwards motion and it works. But he will walk away, when I am angry, so that my voice seems not as loud.
Aspies can up to a certain point learn how to do things, but it takes being gentle and encouraging.