AirPlay 2 as part of the iOS 11.4 update brings support for HomePod stereo pairs and new multi-room audio functionality.
Airplay 2 (website here) will play music in any room, from any room. You can move music from one room to another, or play the same song everywhere. You can also play different songs on each HomePod that’s connected to your Wi-Fi network.
AirPlay 2 requires a software update to iOS 11.4 on your iPhones and iPads. It can also work with Apple TV.
AirPlay 2 and Apple HomePod
The stereo pairing of Apple’s HomePod speakers will be the most welcome feature upgrade. The 360° sound and room tuning are great, but until now it was just a mono room speaker.
HomePod’s spatial awareness senses the acoustic properties of the room. End each HomePod automatically adjusts the audio to provide impressively separated left and right stereo sound.
Apple claims that the A8 chip in each speaker can provide a wide, almost three-dimensional soundstage anywhere in the room. It adds that a HomePod stereo pair creates room-filling sound with greater bass extension. The result is a deeper, more accurate reproduction of low frequencies.