Given the changes to our lives 2020 has brought about, you might be wondering why you would need noise-cancelling headphones at all - after all, we’re not getting on an aircraft any time soon and many of us are now working from home. A few seconds later they were connected and Google Assistant was set up. XM4 also supports Google’s Fast Pair feature, which for me is the first time I’ve seen it in action – I turned on our review unit and my phone immediately popped up a notification offering to set the headphones up. #Sony xm4 turn off adaptive sound control android#The headphones offer 30 hours of noise-cancelled battery life – and more, if you turn off noise cancellation – and they charge from USB C so you shouldn’t need any new cables (if you’re using a modern Android phone, anyway). I’m not so sure how I feel about that last one – it’s far more polite to take your headphones off when speaking with someone else, but I’m sure there are situations where this is warranted. Similarly, the headphones will pick up when you’re speaking to someone and automatically stop music and switch to ambient noise mode so you can have a conversation for 30 seconds before music starts again. This makes use of a proximity sensor in the earcup and two accelerometers. The new XM4 headphones will also detect whether they’re being worn or not, and play/pause your music accordingly. This learns where you go and how best to tune your use of noise cancellation and ambient sound settings as you move around, according to your location. XM4, along with Sony’s Headphones Connect app features Adaptive Sound Control. The XM4 headphones have two microphones on each earcup, and Sony says there’s five microphones overall on the set. #Sony xm4 turn off adaptive sound control Bluetooth#Sony’s still using their QN1 HD Noise Cancelling Processor (first sighted in the XM3 headphones), but they’ve updated the algorithm used for noise cancellation and paired it up with a new Bluetooth chip that responds to input music and noise arond the headphones 700 times a second(!). The headphones can connect to two Bluetooth devices and switch if an incoming call is detected. Previous models also allowed you to enable/disable noise cancellation with a physical button this feature is now controlled via the Sony Headphones Connect app. You’ll control your music with Sony’s standard touch-sensitive right can (swipe up/down for volume, forward/backward for track control, double-tap to start/stop music and cover to let ambient noise in), but there’s also a button you can use to summon the Google Assistant (or Alexa, if that’s your thing).
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