A new Bluetooth audio codec called AptX HD promises a better - than - CD listening experience, crucial to enjoying higher resolution music streaming apps like Tidal.
It has Bluetooth 4.2 with Qualcomm aptX / Qualcomm aptX HD audiocodec for 24 - bit lossless audio and Digital MEMS microphone for crystal clear call quality.
The legacy of what the company calls Hi - Fi audio began with the original Axon, which saw, in addition to a dedicated Digital - to - Analog converter (DAC) a secondary audiocodec used to enhance audio recording, particularly with video.