Sharing an AirPod with a friend is great for those times when you'd like to watch or listen to something together, but doing so risks missing dialogue or sound effects that could play in the other AirPod due to stereo separation. To ensure both you and your friend hear the same thing, you need to put your AirPods into mono mode, and we show you how to do that.
Stereo
How to change which HomePod listens to your commands when using paired HomePods
If you have two HomePods that are paired to create a stereo setup, only one of these HomePods will be used to listen to your voice queries. When saying a command such as "Hey Siri, what time is it in London?", only that HomePod will be listening to you although the other HomePod might be physically closer to you.
As far as I can tell, there is no way to manually select what HomePod is the dominant one during the initial pairing process, but there is a way to swap which one will actively listen to you once the stereo pair has been created.
List of AirPlay 2 Siri voice commands for controlling multiple speakers
AirPlay 2 brings the ability to control audio across multiple speakers from your HomePod, iPhone, iPad or Apple TV. You can use voice commands to do things like play music in a particular room, play different songs on different speakers, enjoy a playlist on all or just specific speakers, continue playing a track on another speaker and more. Here's our list of the best AirPlay 2 Siri voice commands that are specific to multi-room audio support.
iOS 11.4 beta hands-on: AirPlay 2, Messages in iCloud, HomePod stereo pairing & more
Apple yesterday seeded first developer-only betas of iOS 11.4, tvOS 11.4 and watchOS 4.3.1, with the iOS and tvOS betas reinstating a pair of missing features that we were promised at WWDC back last summer: AirPlay 2 and Messages in iCloud.
HomePod’s “FullRoom” stereo pairing is coming soon, followed by AirPlay 2 multi-room audio
First HomePod reviews have now begun trickling in ahead of its scheduled arrival this Friday.
Prime Video for Apple TV lacks support for Dolby Vision and 5.1 surround audio
Despite streaming ultra high-resolution 4K video with high dynamic range (HDR) that looks awesome on 4K HDR television sets, Amazon's new Prime Video app for Apple TV lacks support for HDR's superior Dolby Vision implementation and 5.1 surround sound.