This means that any airplay 1 device will always be 2 seconds behind real-time. To give the device a headstart it sets a buffer delay of 2 seconds and keeps that sync with NTP, which is a really long time. It also only is able to do multi-room in the way that Airport 1 does multi-room, it just does a better job of it than other airplay 1 cracks and bridges.Īirplay 1 also essentially uses RTSP and just firehoses the packets to the player and hopes they get there. It purposefully degrades the audio by dropping or inserting frames so that it can maintain its synchronization. I am betting that Apple has big plans for UWB. They did not invest the effort to make custom UWB silicone just for indoor positioning and airdrop. To me, the main benefit of moving as much to ultrawideband and off of WiFi for Airplay and Airdrop is the much lower power consumption of ultrawideband to increase mobile device battery life.
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I would "watch this space" if there are HomePod or Apple TV refreshes that have a U1 or variant chip in them. However there is no sense in announcing or making a push for it now as there is nothing to airplay to using UWB, and regardless of breathless sales numbers, there are mot that many devices to airplay from using UWB.
It is likely that a lot of the heavy lifting for moving some components of Airplay to ultrawideband has been done, even if some other components will remain in WiFi. Due to how the U1 chip was advertised with the iPhone 11 launch, we know that the MultipeerConnectivity framework was extended to utilize ultrawideband already. The protocol is used by both Airplay and Airdrop. Apple uses it's own competing direct connect / peer to peer framework called Apple MultipeerConnectivity. I agree with you, but for Apple specifically - Apple does not use WiFi direct. An Apple TV and AirPlaying iPhone or MacBook might negotiate Wi-Fi Direct and UWB connections depending on context - streaming media might use Wi-Fi Direct, start using your computer and moving around the mouse, maybe it switches to UWB to lower latency at the cost of reduced range and greater battery usage. Wi-Fi direct might be appropriate for, say, linking your iPhone with your MacBook to keep things in sync whether or not they're connected to a network and as you move around the house with your phone. So you're right, UWB tech isn't being used to try to replace Wi-Fi direct in general, but they're aiming to be useful for different purposes.
For like a decade now they've been trying to develop a set of standards to use UWB for personal area networks and take advantage of very high data rates for things like wireless display monitors.
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Well, "new WiFi" is 5 Ghz, which already has trouble penetrating walls and reaching long distances, and UWB is above 5 Ghz, so it makes sense they're going to market it as alternatives to Bluetooth and NFC.īut UWB, with very wide channels, allow very high data rates. This subreddit is not endorsed or sponsored by Apple Inc. If you'd like to view their content together, click here. This fundamental difference in audience is why we support two communities, r/Apple and r/AppleHelp. Apple SubredditsĬontent which benefits the community (news, rumors, and discussions) is valued over content which benefits only the individual (technical questions, help buying/selling, rants, etc.).
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