Sony Xperia Z2 smartphone is up in the market and ready for competition. It’ noise-cancelling technology is something that separates it’s features form other phones available around. It has got 20.7 megapixel camera and that's even better than the 16 megapixels in Samsung's new Galaxy S5. But lens quality and the focus mechanism are also important says Sachin Karpe.
It’s 4K video recording is impressive that the phone can capture video with four times the details as full high-definition video. The phone analyzes ambient noise and produces a countering signal.
In simple terms, if the noise is a 7, the phone subtracts 7 to bring it to zero. If the noise is a 5, the phone subtracts 5. A sensor in the earpiece detects the noise, so the phone knows what countering signal to send. This approach keeps the headphones smaller and cheaper than typical noise-cancelling headphones.
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