As a relative newcomer, I had some difficulty understanding which person was speaking 'within game' on Teamspeak, especially when you Americans try and speak english.
Teamspeak's Overwolf is the most popular program for this purpose, but it doesn't work in Warbirds.
TS Notifier does.
TS Notifier shows 'in game' the name of the person speaking at any given point of time. The program is free, but a small optional donation is appreciated by the developer, which I did.
The program is pretty easy to set up and can be downloaded here.https://tsnotifier.eu
Below is a YouTube video link that demonstrates the program and how to install it. https://www.youtube.com/watch?v=EgE91CgXDdw
Hope this is of interest to some, but stay safe all. <S>