Apple announces FaceTime Audio

At its WWDC 2013 conference in June, Apple announced it is releasing FaceTime Audio later this year.  The audio-only version of FaceTime will likely be a “full” HD voice client given its use of the Fraunhofer AAC codec family.

Versions of FaceTime Audio will be available for Apple iOS 7 and OS X “Mavericks” when they are released.

The AAC codecs can sample between 8 kHz to 96 kHz, with support for up to 48 channels. Fraunhofer has promoted AAC-ELD-based codecs a “full HD voice” solution delivering CD quality streaming audio with four times the audio spectrum of today’s narrowband calls and twice that of “HD voice” calls, while running at bitrates comparable to G.722.

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