Dear @terry9 @mijostyn and friends:It's obvious that not only the " color " on each cartridge changes but mainly the " color " where the other named characteristics change too but in different way and in way lower gradation.
Now, my audio/sound/MUSIC experiences through over 40+ years gave me a lot of lessons on how a human being " hears and listen and in my case this is what I do when listening at my place and what I learned it happening:
first I like to listen MUSIC/recordings at nigth when the street noise floor is lower as is my building noise floor.
I never wear any kind of clothe not made it by natural fabric as cotton, wool, silk and the like.
I don't listen with the room/system ligth off but not very shiny and I never listen with my eyes closed. Yes, my seat position is near field and when I want to listen something seriously by seat is a wood chair with my head totally free of any near boundary because my normal seat is a confortable couch that absorb the sound from speakers what is not a good idea.
"
There's Life Above 20 Kilohertz!
A Survey of Musical Instrument Spectra to 102.4 KHz
James Boyk
California Institute of Technology
Music Lab, 0-51 Caltech, Pasadena, CA 91125, USA
Tel: +626 395-4590, E-mail: boyk@caltech.edu
Home: http://www.cco.caltech.edu/~musiclab
Copyright © 1992, 1997 James Boyk. All rights reserved.
Abstract
At least one member of each instrument family (strings, woodwinds, brass and percussion) produces energy to 40 kHz or above, and the spectra of some instruments reach this work's measurement limit of 102.4 kHz. Harmonics of muted trumpet extend to 80 kHz; violin and oboe, to above 40 kHz; and a cymbal crash was still strong at 100 kHz. In these particular examples, the proportion of energy above 20 kHz is, for the muted trumpet, 2 percent; violin, 0.04 percent; oboe, 0.01 percent; and cymbals, 40 percent. Instruments surveyed are trumpet with Harmon ("wah-wah") and straight mutes; French horn muted, unmuted and bell up; violin sul ponticello and double-stopped; oboe; claves; triangle; a drum rimshot; crash cymbals; piano; jangling keys; and sibilant speech. A discussion of the significance of these results describes others' work on perception of air- and bone-conducted ultrasound; and points out that even if ultrasound be taken as having no effect on perception of live sound, yet its presence may still pose a problem to the audio equipment designer and recording engineer.
In a paper published in Science, Lenhardt et al. report that "bone-conducted ultrasonic hearing has been found capable of supporting frequency discrimination and speech detection in normal, older hearing-impaired, and profoundly deaf human subjects." [5] They speculate that the saccule may be involved, this being "an otolithic organ that responds to acceleration and gravity and may be responsible for transduction of sound after destruction of the cochlea," and they further point out that the saccule has neural cross-connections with the cochlea. [6] Even if we assume that air-conducted ultrasound does not affect direct perception of live sound, it might still affect us indirectly through interfering with the recording process. Every recording engineer knows that speech sibilants (Figure 10), jangling key rings (Figure 15), and muted trumpets (Figures 1 to 3) can expose problems in recording equipment. If the problems come from energy below 20 kHz, then the recording engineer simply needs better equipment. But if the problems prove to come from the energy beyond 20 kHz, then what's needed is either filtering, which is difficult to carry out without sonically harmful side effects; or wider bandwidth in the entire recording chain, including the storage medium; or a combination of the two.
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Now, human being " hears " not only with the ears but with his whole body along all his different senses and all the concious information stocked in his brain Amygdala but down there the majority of the Amygdala information we are not concious but has direct influence in all what our body does or reacts. Even our brain with all its resources and it does not matters that mijos can listen to 16khz the brain and senses synthetize over 50khz even if the speakers can's do it.
We are 24 hours alive and everything counts that's why I don't listen with my eyes closed because when I close my eyes immediatly I " look " different " figures/scenarios/ideas " etc etc.
The sense of vew is way important when we are listen at home as is to choose a time to listen when our nervous system is more or less in equilibrium because if we are under high distress or something to worry our senses are afected directly and the rhythm of what we are listening changes that when we are listening in equilibrium.
It's really complex what happens around/surround us and normally we don't take care about. I care on all the listening experience at a live event or in a room/system.
As all of you I listen my system to live each time the developing of the MUSIC enjoyment, I'm a MUSIC lover not a hardware lover.
R.