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#238325 - 2015-08-02 16:19 Re: MQA confusion [Re: Altus]
Registered: 2009-09-13
Posts: 5,389
Ludwig Offline
President of the Imperial Galactic Government
Ludwig Offline
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Registered: 2009-09-13
Posts: 5,389
Loc: Europe
For example, for Brothers in Arms, it is known that the recording was done with a certain Sony ADC, then remixed in analogue, then once again put through the same Sony ADC. In the MQA remastering, the artefacts known to be produced by putting the signal through that Sony twice have been compensated for.

This is really an extremely impressive level of remastering engineering, and that's even before the Meridian DAC is matched at the other end.


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#238328 - 2015-08-02 16:42 Re: MQA confusion [Re: Ludwig]
Registered: 2004-04-15
Posts: 12,494
VirusKiller Online content
Don't Panic
VirusKiller Online content
Don't Panic

Registered: 2004-04-15
Posts: 12,494
Loc: nr. Milton Keynes, UK
Most of what Waldrep has written on MQA, frankly, demonstrates a poor understanding of the technology. Even though he has had conversations with Bob Stuart, his writings show that he (deliberately or otherwise) doesn't get it. I'm afraid to say that he has a vested interest in his own brand of "HiRes" and, like most other audio industry digital "gurus", history will judge him as an "also-ran". His articles are simply not worth your time. IMHO.


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Edited by VirusKiller; 2015-08-02 19:06. Edit Reason: Removed an ambiguity
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#238331 - 2015-08-02 18:37 Re: MQA confusion [Re: VirusKiller]
Registered: 2002-02-14
Posts: 8,496
ncpl Offline
President of the Imperial Galactic Government
ncpl Offline

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Loc: Surrey, UK
Spot on VK. He frustrates me in that his passion for hi-res is so polluted with "his way or highway" attitude that I have stopped reading. He is as bad for selective memory and quoting as the very people he is at war with. His signal to noise is too low.


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#238355 - 2015-08-03 07:28 Re: MQA confusion [Re: Rolski]
Registered: 2008-02-29
Posts: 1,835
Asa Post Offline
Knows where his towel is
Asa Post Offline
Knows where his towel is

Registered: 2008-02-29
Posts: 1,835
Loc: Devon, UK
Originally Posted By Rolski
A lot of interesting reading at realhd-audio.com including this article on MQA , where Mark Waldrep says
Quote:
However, as important as this new technology is…it doesn’t make any changes to the original signal. It’s doesn’t reveal any additional nuances or fidelity in the original recording. The claims that it results in an improvement in fidelity over the source are misplaced.
and
Quote:
MQA is an important stepping-stone in the evolution of music delivery NOT a revolution is sound quality.

Thoughts / comments ?



Thanks for posting a good example of the sort of thing I had in mind when starting this thread: an audio enthusiast who does not understand MQA. Why does he imagine that "the original signal" should be "changed"? And why does it not reveal "additional nuances"?

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#238356 - 2015-08-03 07:29 Re: MQA confusion [Re: Ludwig]
Registered: 2008-02-29
Posts: 1,835
Asa Post Offline
Knows where his towel is
Asa Post Offline
Knows where his towel is

Registered: 2008-02-29
Posts: 1,835
Loc: Devon, UK
Originally Posted By Ludwig
For example, for Brothers in Arms, it is known that the recording was done with a certain Sony ADC, then remixed in analogue, then once again put through the same Sony ADC. In the MQA remastering, the artefacts known to be produced by putting the signal through that Sony twice have been compensated for.



Sounds Dire?

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#238360 - 2015-08-03 08:28 Re: MQA confusion [Re: Asa Post]
Registered: 2010-01-24
Posts: 767
Altus Offline
Paranoid android
Altus Offline
Paranoid android

Registered: 2010-01-24
Posts: 767
Loc: Midlands, UK
See attached review from analogplanet of the recent Mobile Fidelity 45 rpm release of Brothers - useful background to the recording of the original

Quote:
Surely this would be a release the digital folks would say proves that vinyl fans are out of their minds. Why would you buy a vinyl LP version of a DDD production when you can buy the CD? After all, the Sony 3324 used to record the album is a 16 bit machine capable of at best 48k sampling and given that this release was meant for CD, it's quite possible it is CD resolution (which makes you wonder why Mobile Fidelity bothered with an SACD release not to mention vinyl!).

Since first posting this review I contacted co-producer Neil Dorfsman and got some interesting information, beginning with the fact that contrary to the SPARS code, this was not at "DDD" production! The original digital multitrack recording was done at 48K/16 bit but because it was mixed via an analog SSL (Solid State Logic) mixing board, the digital tracks first had to be converted to analog and then mixed to two-track DAT at 44.1K/16 bit resolution. Therefore, this double 45 was mastered from a CD resolution tape. If it was the original tape, it was a DAT tape.

Now while cynics might say "why not just get the CD"? It's not that simple. "Get the CD" and use what to decode the digits? Your CD player or DAC? Is it as good as the one Mobile Fidelity uses? Or do you think all DACs sound the same? When listening to this double 45 you are hearing a combination of Mo-Fi's D/A converter, the mastering engineer's EQ choices and what the analog cutting process does or does not do to the resulting analog signal, just as when you listen to the original CD or LP you are listening to the gear used for those back "in the day" and the EQ choices made by Bob Ludwig.

Comparing the original Bob Ludwig mastered LP (Warner Brothers WB 9-25264-1) with this double 45rpm edition is easy: there is no comparison. Ludwig was stuck with an early D/A converter and while there still are those declaring those and digital "perfect", you can hear that early converter ringing and if that's not what causes the bright, annoying global glare, then something else is responsible—like maybe the A/D converters in the 3324? In that case nothing could solve the problem other than to apply EQ that would probably kill the record.



It strikes me that producing MQA remasters of old albums will be far from simple and that the claim doing the rounds of the dealers in the spring that MQA would launch with around 1000 albums was probably optimistic.

It's not clear to me at which point in the process the MQA magic is applied - what is the starting point in the mishmash above? Could those more knowledgeable walk though the process using Brothers as an example? Presumably it won't be possible to get a true hi res recording out of this example.


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Edited by VirusKiller; 2015-08-03 08:37. Edit Reason: Added quote tags
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#238364 - 2015-08-03 10:05 Re: MQA confusion [Re: VirusKiller]
Registered: 2011-02-02
Posts: 2,352
Hector Online content
Senior Shouting Officer
Hector Online content
Senior Shouting Officer

Registered: 2011-02-02
Posts: 2,352
Loc: Midlands, UK
The responses of Mark Waldrep are both predictable and inevitable due to vested interest.

Muddy Waters initial coincidence grin

Hector


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