3D Holographic Imaging?

Since you give me the feeling of being a guy who knows a lot about the subject (unlike me) I would like if you could kindly explain where is the difference when you say "it is the copy of the original": then a copy is not the same as the original?
Or, what does the difference between the original and its copy consists of?
I mean: in your knowledge are there many types of copy?
If so, which one?
Simple: live music (original) vs. recorded music (copy).
 
while each individual have their own impression through their own experiences, imho the following Components will determined your imaging presentation :
1. Speakers - minimal diffractions, controlled dispersions and linearish freq responses.
2. Room - it has to have some sort of controlled reflections on broadband responses (pref. 40hz and up)
3. Electronics - specifically for tube amp, a great tube amplification (pre/power) presents and project space between instruments, vocals and sound in the recording better than solid state.
4. Cables - some cables (hifi brands) introduced phase shift that just made the sound different rather than improve it.

Any of those component in the system will effect the imaging, the no.1 and 2 will affect more, however you can still hear (see) it even if you only change the electronics.

if you have a great room, any of changes on the components in the system will be heard easier than any other room.
No 4 -> have a look at this white paper...
 

Attachments

  • Like
Reactions: thought91
. . .
It just makes me laugh when the audiophool localizes all instruments with the highest precision as if they were playing together in real life.
. . .
I think it's very normal instead (with no trace of polemic).

Thank you, because your "simple" phrase made me arise many considerations.

I'm a music-lover and when I listen to the music I do it for my own pleasure, of course.
The pleasure may be at least of 2 two types: the pleasure of the soul, relating to the emotions and the memories evoked by the musical content and the pleasure of the body, relating to the sense of hearing and therefore to the pleasantness of listening to the sounds that make up the music and that physically enter your ears and make your tympans vibrate producing unique and well-known pleasure.

Even knowing the scenic reconstruction of my system has nothing to do with the original event I really like the same to be deceived by the fake perception of all the positions of the voices and musical instruments in the illusory sound-image and in all the various parts of the space "created" by the speakers all around.

Sincerely I don't think there is anything ridiculous, nor fool in being consciously deceived by this: after all, even the "simple" stereophonic effect is a fooling-effect, by design.

Just sayin'...
. . .
Just the work of a clever sound engineer.

Or, of a lucky one. 😉
 
  • Like
Reactions: Pano
No 4 -> have a look at this white paper...
I see two major problems with the aforementioned paper.
1. No details are given on the 3 cables tested meaning that noone can reproduce the data independently (the basis of scientific research).
2. The observed differences are only obtained with very long and unrealistic interconnects (2m to 4m!)

If I had to peer-review this paper, I would reject it.
 
Its funny how often tubes do 3D better then entry level SS. I still don't understand why? Any thoughts?
Hi, I would say - lack of crossover distortion (if class A SE) and the inherently low distortion with ear pleasant characteristics.

For electric guitar amplification, tube distortion produces the best sound for the ear. No solid state equipment can get that tube distortion - and it is related to the power stage and speaker interaction, since a solid state distortion pedal can sound great with a slightly distorting tube power amplifier. Any tube distortion preamp does not sound too good with a solid state amp.

Since I had many guitar amps in my hands, that is how I imagine this works in HiFi also - but at much reduced distortion levels. A single high efficiency FR loudspeaker with a class A SE tube amp can be pure magic (if we neglect the very low end). I cannot say if the tubes are lacking something negative from SS amplifiers or if the tubes add something positive the SS amps do not. Nevertheless, I find class A SE triode power amplifiers to be most enjoyable while listening to music. And they do not need to be anything exotic with special capacitors and heavy output transformers. The affordable DIY or Chinese amps using normal parts are good enough for me.
 
Also blame Joel Cohen, of ‘Sound Concepts’, who I believe came out with his Inter-Aural-Crosstalk-Cancellation product a few years before Carver came out with ‘Sonic Holography’. While both of their products produced crosstalk cancelation, they approached doing so via different strategies. A number of years after Sonic Holography, Matthew Polk’s came out with his passive, loudspeaker based equivalent, the ‘Stereo Dimensional Array’. SDA stills looks to be available from Polk Speakers, but the other two products, both active, have long ago disappeared from the market, as far as I know. IACC is a fun effect, at first, but unfortunately, quickly becomes very unnatural sounding. Sort of the audio equivalent of those fun-house mirrors which greatly distort your reflected image.
Can't one replicate this effect using a large mattress placed on end in the center plane?
 
As it seems the OP is asking about maximizing the stereo effect, and the wiki page uses the same "3D" reference as OP, I'll also quote the intro:

"Stereophonic sound or more commonly stereo, is a method of sound reproduction that recreates a multi-directional, 3-dimensional audible perspective. This is usually achieved by using two independent audio channels through a configuration of two loudspeakers (or stereo headphones) in such a way as to create the impression of sound heard from various directions, as in natural hearing."

https://en.wikipedia.org/wiki/Stereophonic_sound
 
  • Like
Reactions: thought91
Can't one replicate this effect using a large mattress placed on end in the center plane?
I suppose, in theory, except I don’t know how much attenuation a mattress would provide at mid frequencies. In addition, the mattress would have to be brought close to the nose of the listener in order to filly intercept the cross-signal of speaker from each speaker from reaching it’s opposite ear. That doesn’t seem like it would make for a too comfortable listening experience.
 
Holography does not apply to sound unless you're a bat 😉 .
Please refrain from using big words you don't understand.
Rude.. I don't reckon there is anything wrong with misusing a word intentionally, if there are many folks out there who understand those series of letters or sounds to reference what I mean to call to their mind. I am all for precision in diction, but this is a public audio forum that we frequent for fun. It is not an advanced legal document, nor is it a peer reviewed article on psychoacoustic studies in bats. So, forgive me please if on this site I slacken my rhetorical reigns, and use words with the intention of conveying meaning to the more helpful folks on this site. It seems to me that you sir, jacques antoine, are most generous in the dissemination of your knowledge as a means to prove other people wrong. I suggest that you take an apparently much needed chill pill, and reflect for a moment on the adage we're taught as children that if you don't have anything nice to say, don't say anything at all!
 
  • Like
Reactions: Ken Newton
And to the rest of you, thank you for your wisdom! I like a sound that seems to envelop me from every side. That is what I meant in my original post, but I get the impression that you all kinda caught onto that without my needing to elaborate. I can appreciate that the realization of this sort of sound might mean a distortion of the original signal, but it's what I enjoy, so it's what I am in search of!
 
And to the rest of you, thank you for your wisdom! I like a sound that seems to envelop me from every side. That is what I meant in my original post, but I get the impression that you all kinda caught onto that without my needing to elaborate. I can appreciate that the realization of this sort of sound might mean a distortion of the original signal, but it's what I enjoy, so it's what I am in search of!
i was not talking about distortion.

"envelop me from every side" = this is one of requirements in my hifi system too, it is when the music can come to me and let me in engage and follow the music easily where i enjoyed my music immensely. not that if i dont have those i cant enjoy it, but its just much more.

it took some years for me to get there, so the journey has been valuable, but the result is even more.
 
  • Like
Reactions: thought91
My Firstwatt F6 withy Tannoy Golds and a simpe stoopid stepped attenuator 'pre' .
My 4 and 5 yr old grandaughters...
Routinely run out of my listening rooms Looking for the source of instruments /sounds they perceive as being 'elsewhere'.
NOT had similar spatial effects in over 50!! years of being an AudioFool.
Fanboy Bull...**** nonsense aside.
Little Girls have Hearing acuity NONE of us.. even dream of having.
 
i was not talking about distortion.

"envelop me from every side" = this is one of requirements in my hifi system too, it is when the music can come to me and let me in engage and follow the music easily where i enjoyed my music immensely. not that if i dont have those i cant enjoy it, but its just much more.

it took some years for me to get there, so the journey has been valuable, but the result is even more.
Well said!