Intel demonstrated the capabilities of its new smart sound technology at the IDF in San Francisco. Laptops equipped with the technology can be woken up from a low standby power state via a spoken message. Unfortunately, Intel didn't share any details about how this affects your battery life.
Intel's Craig Chap showed a notebook powered by a sixth generation processor wake from a low standby power state. All he said was "hey Cortana wake up" and it started the PC.
This is possible with the help of Intel smart sound technology that listens for your voice commands.
The voice commands extend to ability to play the music on your PC. Once you wake your PC up, Cortana takes over and you can use all the standard commands.