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RE: Lossy Compression

"Do you know for a FACT that MQA is uses Lossy Compression?"

Yes. The description of MQA given by Stuart describes the way information is thrown out (particularly low level bits associated with higher frequencies that are deemed to be marginal or "inaudible"). This is not the same lossy compression as MP3, but it is none the less lossy. It uses a different psychoacoustic model as MP3. More to the point, looking at the numbers and doing the arithmetic, one can see the number of bits in the original data stream as determined by 352800 x 24 x 2 /sec and compare that with the bit rate shown in the graphic.

The whole point of MQA is to throw away unimportant bits to conserve bandwidth. This necessarily involves losing information and quality. One can argue about cost/benefit ratios, but one can do the same with MP3. The only difference here is that 20 years have gone by since MP3 hit the scene and bandwidth has become extremely cheap and is no longer a resource worth conserving by anyone who has the slightest interest in sound quality. For background music purposes, one may as well use MP3. This leaves a questionable market niche for Stuart's "invention" that he has been proposing in various forms for many years.

Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar


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