And Mola Mola.
Overlooked due to price...
And Mola Mola.
I don't have a spare $11,000 laying around just to boast of R2R . . . the repair bills on my Jaguar are killing me . . .And Mola Mola.
Do we know for sure this is the same dude who keeps joining under different names?They banned this user. A big troll, that dude that has an ego the size of California, think is a genius but can’t assemble his own products. He can’t even solder wires correctly. It’s comical but tragic because his dacs are a danger to his customers (and their families and neighbors). Amir fixed a bunch of those trash dacs.
I'm not sure it is him, but that was the general conclusion from seasoned ASR members. I took a 10 year break from all audio forums, I'm just getting back to it this year (I'm glad I found ASR) so I'm not familiar with this dude's full history. But if you look at his writing style and what comes out of his keyboard, there’s a big resemblance.Do we know for sure this is the same dude who keeps joining under different names?
I checked out his website and it is weird—you have to pay to become a member of his “club” and then you can purchase his DACs. Not sure where he came up with that marketing strategy.
He didn't invent it. There used to be brick-and-mortar shops that demanded a non-refundable deposit before any demos or discussions. The deposit would be applied to any subsequent purchase. Not missed.I checked out his website and it is weird—you have to pay to become a member of his “club” and then you can purchase his DACs. Not sure where he came up with that marketing strategy.
Loopback? You need to play music, capture it, and then do the comparison. And since folks would want to know about the files, you need to upload them to some site and provide links.
As it is, I am not sure how would care about the graph you post.
APx500 series audio analyzers have the required program simulation noise signal built-in to the signal generator. In certain APx measurements, it’s available by setting the generator Waveform to Noise and the Noise Shape to BS EN 50332-1.
I think the way you used the word "compression" for SINAD refers to diminishing returns past some semi-arbitrary value which refers to "good" performance. But what I meant was that the Df metric compresses measured values into a smaller scale. It's still a static test of signal fidelity in the end.
Say it was implemented as part of the regular test suite. It would still have to be supplemented with all of the various electrical measurements, like level, power or gain. That implies that it would even translation into a graph: level vs. Df, or power vs. Df. At which point the metric starts to collapse since it's not referenced to SPL or psychoacoustic considerations.
I'm probably not being completely fair. My thinking here is that it seems like there is no reason to apply the Df to electrical signals given the kind of performance possible today. I would see it being, however, very useful for analyzing production plug-ins for DAWs, especially ones that are supposed to be transparent. That's one area of measurement that is still completely underdeveloped and which, I think, would cause a lot of people to pay attention.
FYI:
https://www.audiosciencereview.com/...-adi-2-pro-fs-black-edition.10834/post-303239
https://www.audiosciencereview.com/...-of-amp-and-dac-measurements.5734/post-309900
I am not going to comment about DF Metric but you can download a lot of loopback recordings from gearslutz and analyze them using whatever method you like. Of course, if you use deltawave, better ask pkane when there are questions.
Found the original post.
No. It won't work. The benefit of FFT is being able to see deep down into the noise floor.
For time domain measurements, the resolution is equivalent of -120db in FFT. But you can't increase FFT resolution or use average.
There will be nothing but noise left when doing the nulling.
I don't have a spare $11,000 laying around just to boast of R2R . . . the repair bills on my Jaguar are killing me . . .
I could be wrong, but I was under the impression that Mola Mola was R2R. But however it is designed, I can't afford $11,000 for its sound quality or the fancy Hawaiian name . . . the repair bills on my Jaguar are killing me . . . I might try to save up for the Okto though . . .Isn't the Mola Mola technically a discrete non R2R DAC implementation to combat disadvantages of both delta sigma and R2R?
A Toyota just doesn't excite me and I can't drive a Mola Mola . . . I bought the 2011 Jag used, and it didn't cost much more than the Mola Mola . . .Buy a Toyota Corolla and a Mola Mola, you'll be better off financially than with a Jag and the Okto in the long run.
Two things you need to know:That would be the point of doing the loopback null test, to see the minimum level of noise the Df metric could measure using state of the art equipment such as the AP Analyzer. If that level is below pretty much every consumer device, then that Analyzer could be used to measure the Df values of those devices with enough accuracy to rank them in terms of sound degradation. It's the relative Df values between devices rather than absolute figures that matter really.
. . . I bought the 2011 Jag used, and it didn't cost much more than the Mola Mola . . .
A Toyota just doesn't excite me and I can't drive a Mola Mola . . . I bought the 2011 Jag used, and it didn't cost much more than the Mola Mola . . .
It will.