Dolby Atmos support in Halo Infinite isn’t exactly a surprise, as developer 343 spoke about utilizing advanced audio technologies in March 2021 in a detailed blog post that confirmed that the game will make use of Virtual Surround Sound via Dolby Atmos, Windows Sonic and DTS Headphone:X.
“These spatial audio technologies allow us to make sounds feel like they’re playing from behind or above you, when you’re only wearing stereo headphones,” said Halo Infinite’s lead audio technical designer Chase Thompson. “We’ve created a custom setup for our in-game sounds so that you get a clear separation between spatial and non-spatial content. This way, whether playing over headphones or on a surround sound system, you can very clearly tell exactly where your enemies are when you’re in combat.”