I am looking for a single adjective to refer to a classic 1940s-1960s news voice. Specifically, the kind that sounds almost like yelling (to me at least). Here is a sample:

https://www.youtube.com/watch?v=B1Gt6hPuMaw

Example Sentence:

> I begin listening to the newscaster talk in his well-known ___ voice. 

I am writing a story that takes place during World War II, and I want to provide a detailed scene to modern readers who may have heard news presented in this way. What is a single word I can use to accomplish this?