hodg100
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I think the idea is that you push the sampling frequency high that the DAC reconstruction filter has an easy job, and you're not left with any in-band amplitude or phase non-linearities.
Nick
Yep I'm suspicious as well. You can't add back in what isn't there. Or maybe it contains an infinite number of Digital Musical Monkeys that can then recreate the originalCan someone explain this? How can you upscale a 16bit 44.1khz signal? to add in more detail? - The SPDIF signal going into it will be what's on the disc, what is it "filling" in.. I am very suspicious about it and I am a chord electronics fan!
It's good to be suspicious.. and you cannot add back something which is not there.. good points.Yep I'm suspicious as well. You can't add back in what isn't there. Or maybe it contains an infinite number of Digital Musical Monkeys that can then recreate the original
Yep totally agree with the analogy with Blu Ray upscaling, & see that a quality unit upscaling will allow the DAC to give a better approximation of the Analogue.It's good to be suspicious.. and you cannot add back something which is not there.. good points.
However if you have two samples taken in adjacent time intervals, and they have different values, which is highly likely, you can interpolate, and guess what the sample inbetween should be, and insert that.
Is it cheating? Yes and no. It is reasonable to assume that had the intermediate sample been taken , it would have been close to the inserted one.
We are very happy for our Full HD TVs to do that with DVD data or 4K TVs with BluRay.
Now xxGBHxx, the maths of digital filtering is rather heavy, so rather than, get outside my comfort zone, could the following explanation work for you.?
.. the same 16 bit CD quality data is fed into a high speed DAC and converted into the analogue voltage perhaps 32 times with the same data. Now every time a conversation takes place there is a little momentary glitch. By doing the conversion 32 times faster, and having a low pass filter on the output it is much easier to filter out these gliches.
Going to watch this:-
Might be helpful!
.. yes but There will be one difference between that and the afore mentioned RA products. .. it will be possible to measure on a scope whether the transients are in or out of phase... WhatWhat is guaranteed is those that spend £3000 on this will tell you it is wonderful, whilst the rest of us argue about its efficacy.