If you offer judgements on the sound quality of an audio player without actually hearing it then you are indeed expressing bias. This is self evident.
There is evident treble roll off. It wouldn’t be wrong to assume that if anything the Tera will lack treble detail at fixed volume levels compared to say a clip+. Not a bias, I am just using the empirical data which you provided which the creator of the Tera ran himself. And again you miss the point. The sound quality of the Tera is meant to be that of 'unparalleled clarity and transparency'. An audibly transparent player will not be any different from another audibly transparent player. Therefore I expressed my discontentment (which you perceive as bias) at the way it is marketed with its ridiculous price tag which inevitably leads to people to believe that the Tera is indeed a DAP with magical qualities that is 'universes and galaxies' above all other DAPs. This statement is obviously completely false. No bias there. Or do you believe that the absence of the magical qualities can only be proven as being non existent if I listen to it?
If you believe yourself able to assess the sound quality of a product that you have never heard then you are indeed claiming extraordinary powers akin to telepathy or remote viewing.
Yes I can ascertain the sound quality of a product to a certain degree, again with the results you provided.
There is no mistake. If you didn't hear it then you cannot determine how it sounds.
Yes you can. Of course there is variability to an extent, but yes you can. That is why people often refer to graphs. And yet again you miss the point. Even arguing from the perspective that the Tera measurements are all screwed up, the Tera is supposed to be an audibly transparent player. It is not going to be any better than any other audibly transparent player. No bias, just a simple scientific fact. So yes, audible transparency is achieved to a degree in the clip+ therefore I believe the Tera is a joke. Bias? No. Simple reasoning backed up by countless empirical data. Even if the Tera player is audibly transparent, it will still remain a joke as you can find audibly transparent players with much MUCH smaller price tags with many more extra offerings, like a screen...
So far you have used someone else's RMAA results to make some judgements, despite considering those RMAA results flawed or incomplete.
RMAA results have margins for error. Does not mean the results are to be completely discarded. But again, I find myself repeating, with the link you provided you can evidently see treble roll off. If the RMAA results have no meaning why were you debating about the square waves at the start in the first place? IF ANYTHING the Tera is just an audibly transparent DAP. The data you provided seems to refute this. But even if the data is putting the Tera in a bad light, it is still a ridiculous product.
In doing so you have asserted two entirely contradictory conclusions:
that the player with a non oversampling DAC has a low pass filter but this doesn't affect the sound
seems to have a second-order filter, which may make nice looking square waves, but has to break way down into the audio band to be rolled off enough by the sampling frequency. The FR plots don't quite go high enough, but it looks like 12dB/octave breaking at 12KHz or so. ..
Hence no audible difference.
and that the player
will simply sound more dull than the clip+ as there is treble roll off.
Apparently we are witness to a remarkable new phenomenon - remote hearing that includes the ability to perceive simultaneous difference and non-difference without contradiction or embarrassment.
Not contradictory at all. If anything, there is evident treble roll off. But I am hypothesising that there probably exists a second order filter which creates the symmetrical square waves. However the effects of the second order filter are not clearly visible in the graphs you provided. If you have problems understanding this, ask any engineer in the science of sound forums. They too attributed the existence of symmetrical square waves to the second order filter and thought IF ANYTHING, the Tera player will have less clarity in the higher frequencies due to the roll off.
I prefer not to offer an opinion on the player because I haven't heard it. I apologise if this strikes anyone as offensive, disturbing, biased, pedantic or evidence of some kind of cheap conjuring trick.
You are the biased one. Hypocritical much? The act of you remaining neutral of your judgement with respect to the player does not make my opinion biased. Without realising that I have also contacted Mr Altmann himself, my opinion has more grounds to be valid than yours.
Your tone, style of writing and analogies such as putting battery acid in your eyeballs is not pleasant to say the least. It comes off as rather bizarre, disturbing and derogatory. Other people have commented in this thread enquiring as to why you express yourself the way you do. That is a different matter all together and has nothing to do with your opinion of the player so don't try to deflect that issue onto something completely irrelevant.