'Life Above 20kh' Research Paper, Harmonics (Overtones)

Dear friends : The human been skin has thousands of nervous ends/terminations that are extremely sensible and detect anything. There are hundreds of it by square mm. and from here goes to our brain.

It’s not only the bones that can detect and are sensible to SPLs but as I posted: hair, skin and all our body and this is not anectdotal issue. All what our full body sense is the experiences on MUSIC/SPLs that are detected and that we live it always.

Here something on the bones:

https://pubmed.ncbi.nlm.nih.gov/16019175/


If we wanted something more elaborated then read this:


http://www.tinnitusjournal.com/articles/response-of-human-skull-to-boneconducted-sound-in-the-audiometricultrasonic-range.pdf

and you can take a look to the References at the end of the article.


R.

Dear @teo_audio : " which are also correct in the critical to human areas of signal reproduction "

there are not a true critical areas of signal reproduction. According that link and my posts here and elsewhere everything is critical from 16hz to over 150khz.
All harmonics modulates what we are " hearing " and puts the natural color MUSIC has.

"" requires an approximate 250khz plus sampling rate, and zero jitter of any kind. at a signal bit depth of at least 20 bits.

currently, we are incapable of recreating/building this. (Jitter) ""

Well today DACs comes with 32bits/384 characterisitcs, way higher than what we need.

Jitter?, LP is way worst than digital about because the cartridge stylus tip can’t follows the grooves modulations with continuity. The stylus tip is jumping at each great obstacle name it groove. This is worst that anything you imagine happens through digital.
Along that exist a tracking error in pivoted tonearms that impedes to pick up what is in the recording and where do you leave all the tonearm/cartridge/LP surface/TT developed resonances/distortions/noises added for that terrible inverse RIAA eq and all those additional gain stages in the electronics where the cartridge signal must pass thorugh ! ! !



All those is superior to today digital alternative?



""" Digital did some of the most critical (to human hearing) things wrong.. """

please tell me a computer or any digital instrument/device that does not use BITS. In which world are you living?

R.

Dear friends: Many years ago as many as my very old ADS L2030 speakers I learned about the importance of our clothes fabric kind.

In those times I looked and read it about a top speaker performer that was using long hair wool inside its boxes for speaker dampening.

My ADS came with fiber glass inside for that same " action "/dampening and I took the choice to modified it by changing all those, even toxic/cancer , glass fiber by long hair wool ( I think I used around 50kg on each one of these really big speakers. ) and that was a great move for the quality performance level of those speakers and I really mean it. As if the L2030 were new/different speakers.

From those times I left to use synthetic fabric clothes and only natural fabric/fibers as: wool, cotton, silk, linen, leather and the like.

You can make the test in this topic too: put you synthetic clothes and listen your system and then change those synthetic clothes by all natural fiber clothes and you must hear the differences for the better.

That’s whay too the furniture or seat couch/chair in your room/system must be made it only by natural fibers.

Returning to harmonics I have to say that the natural color that has the live MUSIC is " painted " by all developed harmonics, this is exactly what we are hearing in live events or in our room/system.
There is why the importance of the electronics/speakers characteristics.

R.

Dear friends : For several years now I posted more than one time that human been can listen beyond 50khz and down beyond 20hz because we listen/hear through all our body: hair, bones, skin, etc, etc.

Even I posted that we have to have the experience to confirm it and for that we need to listen for at least one hour MUSIC tracks very well know for us seated in NAKED fashion ( only a boxer down there. ) at different controled SPL and inmediatly to that naked session listen same recordings with our normal clothes.
This experience is really a learning one and this link says that we really can listen with a more wide frequency range that we can imagine:

https://pdfs.semanticscholar.org/e6ed/9ec45208be612a60411e3b527d65b22962d0.pdf

So, GO NAKED !!  . You have to try it.

R.

Dear @elliottbnewcombjr : For many years gentlemans as Prof. Johnson designer and manufacturer of Spectral electronics and owner of RR LP label talks of the importance that electronics must has linear very wide frequency range over 1Mhz as his electronics and my phonolinepreamps.

For years too I posted the importance of those harmonics and from that comes by insistence that the main subject the main parameter in the room/system MUSIC reproduction belongs to the bass range quality level performance because its harmonics modulates all the frequency hearing/listening frequency range.

Your link is a great one but you said :

"" I can begin to explain why I prefer analog, is ’Analog Gets the Overtones Rght’.

Reel to Reel, my noisiest format, is my most preferred source. LP favored over CD. Tubes over SS. Myself, and ANY/EVERYBODY listening here to comparisons over the years has the same preferences. ""

First already was discussed in deep in some Agon threads that our ears has an ADC, so your hear digital not analog: period.

You have a misunderstood of what you read in that link because harmonics are developed in the same way in any reproduction media and your preference for tubes means and confirm your misunderstood because there are several tube electronics that just don’t have a linear/flat frequency not  to 150khz and beyond but not even at 100khz. 


" ANY/EVERYBODY listening here to comparisons over the years has the same preferences. "

Well if you think that then all as you are way wrong: no matters what. You need to read your link again and again.

Btw, thank’s for the link.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.