Once again, any technological advancement they may have come up with is buried (to my senses) under lots of weird double-talk and annoying pretension.
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The low pitch, eventhough it is not there, can still be heard when only a small number of high-harmonics are present. Hence it appears that it is anything but far fatched to assume that the brains innate propensity to resupply a missing low-pitch in a virtual manner, may work magic equally well at the high-end of the spectrum.
Huh? "hence it appears that it is anything but far fetched to assume that .. may work".
First, basing the ear/brain's ability to "extend the spectrum" upwards on its ability to extrapolate the missing fundamental, is BS. Extrapolating the fundamental is very simple: the harmonics are all integer multiples of some base frequency, there is only one frequency that fits this description (the fundamental).
Why would the brain want to extrapolate higher harmonics? What would be the purpose? Where would it stop? Besides, it's easy enough to deomonstrate experimentally that this is not so. Take a simple analog synthesizer, and twist the "overtones" knob back and forth. At the low end (few overtones), do you still perceive the high frequencies? No! It's a totally different sound.
Second, what the #*(& does "it appears that it is anything but far-fetched to assume that something may work" mean?
Wow, what a strong statement. It
seems that
assuming something
may work would not be "far-fetched"! Unfortunately, it would be rather misguided.
Finally,
This pre-supposes that there is such a thing as a virtual edge continuum, a third musical dimension, adding depth to the two basic dimensions of pitch space and time. Although the elegant beauty of the virtual edge continuum is almost self-explanatory- as a concept, it is hardly analytically approachable to find out whether it constitutes a separate entity.
Sorry, but you lost me. The author throws out some new, vague theory, that explains why having the lower harmonics present free of phase and intermodulation distortion negates the need to have the higher harmonics present - because your brain will fill in the rest. Again -
no. There is simply no evidence that the brain works this way.