A press release from Highresaudio announced that they are stopping their streaming of MQA encoded music due to the fact that MQA inherently does not reproduce the original signal and therefore isn’t lossless. Further, the folks behind MQA state that their solution retains only those aspects of the ultrasonic signal that were significant to audible sound quality. So by default the resulting MQA encoded music will not match the original. Others in the music industry have voiced similar complaints. Further, it is unclear to me on whether you can apply any quality control to the data stream being sent. I am holding to my original position that MQA is an approach to attempt to coerce hardware, software and streaming vendors to license this new proprietary solution rather than using the existing open standards.
is an article publishing on Hi-Fi+ related to this topic.
HIGHRESAUDIO TO STOP OFFERING MQA