Crew Chief is a team radio engineer, originally developed by Mr Belowski .  It also has a spotter with a choice of voices.

It is human-like, highly responsive, and much, much more including voice recognition, (optional) foul language and thousands of driver names.  It's free open source software - though donations are appreciated.

It works with the following games:

Game Support Level
Assetto Corsa Full
Assetto Corsa Competizione Some features not available
Automobilista Full
Automobilista 2 Full
Copa Petrobas de Marcas Full
DiRT Rally Full
DiRT Rally 2 Full
F1 2018 Spotter Only
F1 2019 Spotter Only
F1 2020 Spotter Only
F1 2021 Spotter Only
Formula Truck Full
GTR 2 Full
iRacing Full
Project CARS Full
Project CARS 2 Full
Project CARS 3 Full
RaceRoom Full
rFactor Full
rFactor 2 Full
Richard Burns Rally Full
Stock Car Extreme Full

It works with Project Cars and Automobilista 2 running on Xbox and PS4 as long as they are connected to the same network.

Installing

The CrewChiefV4 installer can be found via the forum. Once installed Crew Chief will offer to update itself when there is a new version but if that fails download the installer (which will be the latest version) and run it.

There is an Android version for Project Cars and Automobilista 2 on Google Play

If you're not familiar with Crew Chief, check out these videos.

Crew Chief Forum

Discord channel