It turns out that the Sony Xperia T had a trick up its sleeve – a feature that was not mentioned initially when the device was publicly announced. The smartphone is actually HD Voice certified.
What is HD Voice, you ask? Think of it as a better way of transmitting audio during calls – a new method that allows a wider band of frequencies to be captured and delivered on the other side of the line. As a result, voice calls sound more natural and even clearer once noise reduction techniques are applied.
But all of this requires the carrier’s network to support the codec that makes HD Voice work-toherwise you don’t get to hear the difference.
So here is the rub. The Sony Xperia TL – a variant of the Xperia T, is coming to AT&T later this year. Sadly, HD Voice isn’t available from AT&T yet. Right now in the USA only Sprint plans to support it.