Here we go, another straw man argument. Sigh.
My language is actually very precise!
MQA attempts to "solve" the issue of high-res with data rates palatable to streaming services.
It uses lossy ADPCM compression, which is sub-optimal and has existed since the 70s.
As everyone has said, it's not about the sound or the features. It's really about DRM, lock-in, and royalties.
Mmm this meaning seems to fit better than negligence
"lack of care and organization; excessive casualness.
"the task is to expose intellectual sloppiness and fraud"
I have a big problem with this word. When I read poetic pages extolling the supposed merits of a speaker cable or cable lifters, as examples, I always wonder if the fantasies that one reads there are the effect of a deliberate will, or a naive incomprehension on the part of their author.
Almost always, the arguments used start from an analogy that does not apply in the situation.
Worse still, when an engineer has worked honestly to solve a real problem, and one of these marketing poets writes b.s. about it, does that put into question the quality of his work and the reality of the improvements that brings his solution ?
And the case gets complicated when the engineer and the marketing man are the same person: The work can be honest and the product valuable, only the marketing arguments are dishonest and fraudulent.
When we look at advertising for cars, for example, most of the time, communication plays on fantasies (social rank, happiness supposed that its possession would bring, aesthetic pleasure ...) and very little on the technical performance of the vehicle. Near no one protests. Because we are not fooled and everyone accepts this game ? More than this, one can enjoy a real pleasure to be proud of his brand new car during a week or two.
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Street cars are at least partly jewelry. The Maserati GT is an awful car if you only look at price vs performance and luxury, but apparently a few people still buy it because of the image and styling.
You have to be on drugs or have gotten a $50k+ discount to buy one over a Porsche 911.
People may not complain directly, but the sales of the base 911 vs the Maserati GT will tell the story.
I don't think analogies to audio work for the most part. Only nerds care what audio equipment you have. Large speakers and aluminum boxes are not exactly attractive to lay persons.
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There is no music at DC so why should that affect amplifier design?
No ****. Outside headphones you can count the number of people directly driving electrostatics on a small number of digits*. Everyone else goes through a trasnsformer and THAT is what the amplifier sees. It sees the impedance as shown. The amplifier is in effect galvanically isolated from the panels. Does a transformer care how its being driven?
So back to the question. WHAT is there in the impedance curve of the complete speaker shouts 'voltage drive me' vs a speaker that shouts 'current drive me'? Other that in Joe world...
*There is a good reason for this. The opportunities to become a statistic are many.
Scott's definition of CFA is to fb to the emitter or cathode.
Sorry, but that is NOT same as operation in current-mode amplification.... CMA.
You can fb to emitter as shown or in a non-push-pull ckt. That is old news.
Current-mode amplification has unique characteristic not like vfb.
It is not only a topology... though new variations can be patentable, for sure. My variation eliminates C9,10,11.
You have to learn the operating mode to know if it is acting as a current-mode amplifier (CMA).
THx-RNMarsh
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Joe
Have you heard about Peter Walkers equation?
An online description can be found in https://home.kpn.nl/verwa255/esl/ESL_English_2011.pdf on page 26.
/örjan
Have you heard about Peter Walkers equation?
An online description can be found in https://home.kpn.nl/verwa255/esl/ESL_English_2011.pdf on page 26.
/örjan
Whatever you say. You were asked to explain what you mean in 2013 still no answer.
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Just got done reading a mile long thread about MQA over at ASR (I thought the back and forth was bad here!)
It reinforced a lot that I’d already heard in that although lossy, the parts lost are of no consequence.
There is an argument between all being 13/44.1 and folding the rest, and (where I thought was 24/48 flac) is really 16/48. (It is labeled as 24/48 flac and comes up on the receivers display as such?). Edit.....after a little more research it does seem to indeed resort to whatever the parent file was up to a max of 24/48.
Doesn’t seem like anyone really knows for sure and that’s the problem.
One thing that really surprised me (if it’s true) is that Qobuz is supposedly using MQA tracks in its library and not labeling as such. When called out on it, they stated it sounded better?
Dunno......I’d still like to pick up a a good/cheap MQA dac (maybe Pro-Ject pre box) to see for myself. I’d go to a audio showroom but there are none here on the redneck riviera!
It reinforced a lot that I’d already heard in that although lossy, the parts lost are of no consequence.
There is an argument between all being 13/44.1 and folding the rest, and (where I thought was 24/48 flac) is really 16/48. (It is labeled as 24/48 flac and comes up on the receivers display as such?). Edit.....after a little more research it does seem to indeed resort to whatever the parent file was up to a max of 24/48.
Doesn’t seem like anyone really knows for sure and that’s the problem.
One thing that really surprised me (if it’s true) is that Qobuz is supposedly using MQA tracks in its library and not labeling as such. When called out on it, they stated it sounded better?
Dunno......I’d still like to pick up a a good/cheap MQA dac (maybe Pro-Ject pre box) to see for myself. I’d go to a audio showroom but there are none here on the redneck riviera!
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I don't believe so as almost no one drives the membrane directly. The speaker out the factory does not appear to be a particularly capacitive load when compared to other speakers unless I have missed something. So the statement that it is a 'voltage' speaker does not hold water to me.
And if you are playing word soup with understood concepts you can argue that, at the membrane you are adding then removing charge makes it a 'pure' current device. Not that I would...
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