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WADAX REFERENCE DAC-$160K

Anybody here have some insight into the DSP technology that is employed by the WADAX DAC architecture?
 
Those were preference tests of speakers. Not transparency tests of DACs.
You can just do this for DACs as well. You’ll end up with an equivalent result: there will be no preference, meaning people cannot tell one from another.
 
"The Studio Player benefits from Wadax’s proprietary “musIC 3” feed-forward error-correction system that operates in the time domain. According to Wadax, “by mapping the error mechanisms of a chosen DAC chip under load using Adaptive Delta Hilbert Mapping, we can develop an algorithm that examines the incoming signal and calculates the induced error (both linear and nonlinear) that will result. By applying an inverse signal at the input, we can real-time correct for the time and phase error that is so musically destructive in other, conventional decoding systems. This process requires a massive number of mathematical operations and a considerable data transfer rate of 12.8GBytes/s. Processing is done at 128-bit internal resolution to precisely render the output and generate the smallest feed-forward corrections.” This Wadax-developed technology has proven itself in the Reference DAC."
we measure the performance of "error correction" with distortion and frequency response measurements. most quality DACs have zero issues there (if you're very young, you might hear some difference in the top octave of human-audible frequencies since filter implementations vary, but if you're in the market for a $300K DAC it's unlikely you still have the hearing to discern any of it). throwing overkill at a non-problem isn't going to improve anything.
 
we measure the performance of "error correction" with distortion and frequency response measurements. most quality DACs have zero issues there (if you're very young, you might hear some difference in the top octave of human-audible frequencies since filter implementations vary, but if you're in the market for a $300K DAC it's unlikely you still have the hearing to discern any of it). throwing overkill at a non-problem isn't going to improve anything.
Is time and phase taken into account? Isn't this part of the science of audio?
 
I've spent too much time online to want to argue with a troll.
I just want to say, for fun, that every pair of 25/30 euro TWS earphones has two DACs, and probably neither of those two DACs is distinguishable from this one :D This makes me laugh a lot.
 
It is contextual to presumptions made about the DAC performance in juxtaposition to any DAC that fits your definition of 'transparent'
Remember: transparent is not the benchmark here. Transparent is easy. The benchmark is the input signal. If we play a multitone signal via the DAC, we know exactly what we would expect to come out. So we can measure it, and deduce how much it differs from the optimal.

How the DAC achieves this, doesn’t matter. We treat it as a black box.

For sure, if some interesting technology is going on in that box, it’s fun to know about it and geek out over it. But that’s a totally different thing.
 
For sure, is some interesting technology is going on in that box, it’s fun to know about it and geek out over it. But that’s a totally different thing.
I don't understand why this touches a nerve here... especially when there is no desire to dissect the concepts proposed in the DSP processing using Hilbert Mapping that has relevance to audio science and subjective psychoacoustic perception... you keep talking about measurable transparency as the arbiter of all things relevant in juxtaposition to the WADAX design architecture and the relative value proposition... Is this DSP not relevant in the general perspective regarding this particular DAC architecture?
 
Is time and phase taken into account? Isn't this part of the science of audio?
Um, you have only to look at test data on this site for other DACs for your answer. Jitter is easy to spot.
 
Is time and phase taken into account? Isn't this part of the science of audio?
No, engineers have been working exclusively inside a black hole, where time and phase do not exist, and only now, through the proper juxtaposition of luxury prose and DAC marketing, has audio science become contextual to causality.
 
Um, you have only to look at test data on this site for other DACs for your answer. Jitter is easy to spot.
Is this DSP only looking at noise related jitter or is it an amalgamation of influences in the DAC architecture that are under control...?
 
I don't understand why this touches a nerve here... especially when there is no desire to dissect the concepts proposed in the DSP processing using Hilbert Mapping that has relevance to audio science and subjective psychoacoustic perception... you keep talking about measurable transparency as the arbiter of all things relevant in juxtaposition to the WADAX design architecture and the relative value proposition... Is this DSP not relevant in the general perspective regarding this particular DAC architecture?
You can’t have a technical discussion when there’s no technical substance being disclosed.
 
There is no scientific reference to Hilbert Mapping in digital-audio system design?
“Hilbert Mapping” isn’t a common term. A “Hilbert Transform” is a common term and it’s an operation used for signal analysis, but can also be used to create FIR filters, for instance for a DAC low-pass filter.

All else is just speculation… there is way too little information to come to any sensible conclusion on what is really going on. Who’s to blame for that, do you think?
 
I don't understand why this touches a nerve here... especially when there is no desire to dissect the concepts proposed in the DSP processing using Hilbert Mapping that has relevance to audio science and subjective psychoacoustic perception... you keep talking about measurable transparency as the arbiter of all things relevant in juxtaposition to the WADAX design architecture and the relative value proposition... Is this DSP not relevant in the general perspective regarding this particular DAC architecture?
There is nothing to "dissect", it is meaningless marketing mumbo jumbo.
If they have evidence that their feedforward thing outperforms a quality implementation of a $10 ESS chip, they have not offered it. In fact they offer no performance specs whatsoever that I can find.
 
“Hilbert Mapping” isn’t a common term. A “Hilbert Transform” is a common term and it’s an operation used for signal analysis, but can also be used to create FIR filters, for instance for a DAC low-pass filter.

All else is just speculation… there is way too little information to come to any sensible conclusion on what is really going on. Who’s to blame for that, do you think?
We could start here:

....And extrapolate into the potentials of the WADAX algorithm... How would you go about measuring this to make a definitive conclusion about 'transparency' and the psychoacoustic value of the DSP as implemented in the DAC architecture anyway? ... Theoretically this DSP could be implemented in any DAC platform design...
 
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We could start here:

....And extrapolate into the potentials of the WADAX algorithm... How would you go about measuring this to make a definitive conclusion about 'transparency' and the psychoacoustic value of the DSP as implemented in the DAC architecture anyway?
Why not ask WADAX?
 
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