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

Assetto Corsa
F1 2018**
Project Cars
Assetto Corsa Competizione* F1 2019** Project Cars 2
Automobilista
F1 2020** Project Cars 3
Automobilista 2 Formula Truck 2013
RaceRoom Racing Experience
Copa Petrobras de Marcas Game Stockcar 2013
rFactor 1
Richard Burns Rally
iRacing
rFactor 2
DiRT Rally
DiRT Rally 2.0
GTR 2

* Some Crew Chief features are not available with Assetto Corsa Competizione
** F1 2018, F1 2019: and F1 2020 Crew Chief only provides a spotter ("Car left" / "Clear" / etc). There are no other messages so it won't refer to you by name. It's not intended to replace the built in engineer in the F1 games - it just adds the spotter

It works with Project Cars 1 and 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.

There is an Android version for Project Cars 1and 2 on Google Play

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

Crew Chief Forum

Discord channel