Bob Stuart, creator of MQA, talks in detail about this revolutionary British technology that sets a new standard in capturing, delivering and reproducing digital audio.
How did the buried signals differ from music”? The sounds we use in speech, music and communication share two properties with natural sounds which are: ‘self-similarity’, and ‘finite rate of innovation’. One consequence of this is that lower frequencies tend to be higher in level than higher frequencies. We cover this topic extensively in the …Read more
In the previous appendix, we showed the envelope of peak levels in high-resolution music releases. What about the noise in the recordings? The graph opposite is from  showing our analysis of the minimum noise level in the audio band for a very large number of high-resolution recordings. Note that very few have noise at or below …Read more
MQA is not a codec in the conventional sense. It takes account of the source (A/D and mastering) and playback (D/A converter). The conceptual target is analogue to analogue, with a temporal blur equivalent to a few meters of air and a noisefloor target of atmospheric ‘absolute zero’.  In the diagram, ‘Encapsulation’ includes deblurring. …Read more