The Black Hole......

I'm going to tell you anyway, I don't expect it to make a difference. Perhaps it is a cultural thing, I don't care, but I find your general tone too combative for my taste, it depresses me, also I find it manipulative. Richard seems to be halfway to a better approach, still too manipulative though in my book, I've seen it too many times, it looks like control.

Duly noted.
It started out well, however the continued attacks on me took their toll.
As noted, my initial premise and explanations were spot on. I explained in great detail and then was accused of being here just to put up wordcount.
The continued strawman building didn't help either.

As I said, this never happens at work, only here.

Jn
 

"This research was supported by grants from the National Institute of Deafness and Other Communication Disorders "

So it might be the case that those techniques are used in the little apparels with DSP for the deaf.
My father nowadays prefers to watch at movies in original language ( at the cinema) and with subtitles, because of the impossibility of having good intelligibility.
Nothing to do with music, I see.
 
"This research was supported by grants from the National Institute of Deafness and Other Communication Disorders "

So it might be the case that those techniques are used in the little apparels with DSP for the deaf.
My father nowadays prefers to watch at movies in original language ( at the cinema) and with subtitles, because of the impossibility of having good intelligibility.
Nothing to do with music, I see.
I often have the subtitles on the TV, I find older films and programs far easier to understand. I don't agree it has nothing to do with music.
 
Theoretically that would be possible when our ears were able to process sound in such a non linear way that we could demodulate envelopes.
Problem however seems that with sound strictly above 20Khz, no matter what envelope or frequency content, we cannot perceive this.
It seems hard to understand how a demodulator could only work in the presence of LF sound.
So for the time being there is no prove for an envelope sensitivity.
When I first learned humans localize using ear to ear delays down to below 5usec midband, I just couldn't believe it. The inverted bandwidth is just way too high. Yet it's there, the meatball just hangin in front of us.
At the same time, there are differences in sound reproduction between cables, where simple L,C and R models do not (yet) explain these differences.
So there still seems a way to go.

Hans
Oh no, not another mismatched impedance cable settling time discussion.😀

Jn
 
Last edited:
Yes - the risk is that one executes "management by fear". Everybody agrees. Seemingly. This is something everyone needs to be cautious of once one end up in a leading position.
Odd you mention fear. In the previous rendition of this thread, I was constantly being hit with intimidation tactics by several. I never complained to the mods, as it's not my place.
As to "leading position", we are all equals here.

To me, the biggest takeaway here is, always question the tools you work with. If the tool is lying to you, and the results just don't seem to match expectation, never say "oh well".
Too many times, the tools are used as bludgeons against a person who reports some kind of audibility thing. When I posted this sideband stuff in support of a possible audibility thing, I was warned I was setting myself up as a target, and it was quite true.
KSTR was kind enough to model and look at exactly what I posted oh so long ago, and came to the exact same conclusion I had back then. He has the luxury of the tools at hand, something I do not.

This thread should be in that spirit of engagement all the time.
KSTR - some great, clear, short & to the point posts - thanks!

//

Agreed hugely, thanks.

Jn
 
Thank you,

Nice review.
A number of people could hear the difference in sound between different Brick Wall filters when going from 96K to 44.1K.
It would be nice to see a comparable test of more recent date, because this one was from more than 20 years ago.

If DAC development followed Moore's Law, then we could expect an increase in processing power of 2^10 or a factor 1000.
So maybe the current generation of Dac's have improved their processing accuracy quite a bit.

One thing is obvious, filters do play an important role in sound perception.
Afair, Bonsai mentioned some time ago that he had made a very long and accurate FIR filter for a customer, where the customers reaction was that for the first time he could hear things to his satisfaction.

Hans


It wasn’t me Hans. Unfortunately I am an ignoramus when it comes to digital.
 
Maybe we should get back to something useful again.

What happened to the loudspeaker project with the pick up winding? I haven’t heard a word about that for weeks.

I had to back burner that last november due to a family death. Life always seems to get in the way.

I have acquired a few tiny gauge enameled wires to see if they can fit the vc interstitials. I really hope I do not have to use the #49 awg, I can't even see that wire.
I also popped the front plate and cut it in half to eliminate shorted turn eddies.
Haven't tried to unglue the spider yet, not sure how to do it without destroying the spider, chemistry and horribly caustic chemicals may be in my future..🙁

At the moment, working on a toroidal coil winder, almost finished with it.

If anybody is interested in the build details, I could cobble up some pics and start a thread in the parts or equipment forum..

jn