Psyonix announced it'll return voice chat to Rocket League with an update scheduled for release on May 9. Voice chat has been removed from Rocket League since the 2.04 update that released on September 14, 2021. The announcement of Voice Chat returning was made on the official Rocket League Twitter account, which linked to a blog post.
Looking forward to not seeing another comment about voice chat... Learn More: https://t.co/hRAyYr8EK4 pic.twitter.com/VGi5U4M5G4
According to the blog post, voice chat will be on by default, and to talk, all you need to do is plug in a headset to use it. You'll be able to access two voice channels, Party Chat and Team Chat, from a new Voice Chat tab found in the Friends List. Once you're in the tab, you can jump in between all the channels from the Main Menu or even in-game by pressing pause. Players will be able to «fine-tune Voice Chat experience» by customizing their chat options in the Settings Menu.
When a player is in a voice channel, they'll see one of the following two Speaking and Muted Mic. Speaking will indicate that someone is talking with a green icon above. Or Muted Mic, which will show an X next to a player's name when they don't have a microphone or you've muted them.
Psyonix explained how each chat will work and how you'll be able to use them.
Party Chat — The perfect way to talk with friends! Players with Voice Chat enabled will enter the Party Voice Channel when they create or join a Party. Players will be able to communicate both in and out of matches as the connection persists between games.
Team Chat — For those who want to talk with their team! Players with Voice Chat enabled will enter the Team Voice Channel when they join a team in a match. This connection will end
Read more on gamespot.com