In Reply to: RE: What is the real difference between HDCD and MQA ? posted by AbeCollins on January 12, 2017 at 12:52:28:
Hi Abe,
Those systems were for the purpose of signal dynamic range compression / expansion.
What MQA is on to is signal bandwidth expansion. As far as I can tell, primarily for the purpose of easing the time domain consequences of utilizing the sharp band-limiting filters that would otherwise be required by the sampling theorem. Meridian's key performance objective with MQA appearing, to me, as the minimization of signal time domain distortion. The bandwidth compression aspect of MQA appears to then be a way of wrapping a wide bandwidth signal within a narrow channel for compact storage, transport, and also for compatibility with existing media.
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Ken Newton
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Follow Ups
- RE: What is the real difference between HDCD and MQA ? - knewton 14:47:21 01/12/17 (0)