I don't believe cables make a difference, any input?

[tinitus]

And I thought electronics and music was sheer math

Well, joke aside, it really is based on math, even the music, right

Question is
How does the same piece of music sound boring with one musician or band, and just absolutely stunning mind blowing with another
Ehh, wheres the magic hidden
In math ?

Sounds to me like you are just shooting in your own foot
Point is, ist all connected, depending on each other
One side doesnt exist without the other

[fdegrove]

Hi M,

Originally Posted by Magura

Naah Frank, I'm only 34 Curly woods was the example here.


Anyhow, could it be due to the compression, rather than the lack of the last KHz?

I would think so, as the attempts so far to demonstrate that we perceive sound above our hearing limitations, has not made it past theory.


Magura

No one's claiming to be hearing beyond the measured limits of his physical capabilities.
It's not about compression either but more likely the fact that the bandwidth has been cut at the high-end of the frequency sprectrum alters and affects the range lying below.
Could be anything really, phase-shifts perhaps, subtle changes in tonal balance. Just guessing.

One thing's for sure though, my bat-like hearing is long gone....

Cheers,

[anatech]

Hi Panicos K,
Well, enjoy those machines while you can. Time is also not going to be your friend there either.

I thought I heard of some places in the USA that were supplying the studio market with parts for the better machines. Wouldn't it be cool (and amazing) if someone came out with Sendust (or Crystalalloy) heads for these Revox machines (or Teac)? Imagine electronics from Nakamichi coupled to the heads I suggested and aligned. That would be super quiet and extremely clear. Now there is a combination I have wanted to see since I started servicing Nakamichi, I was already servicing Revox and Tascam. What a machine that would make.

What you want for a replacement machine is one that controlled the back tension dynamically. That would reduce the flutter and absolute tape speed would be more consistent. You might even be able to have a consistent tape to head tension lower than what you have normally. As a side benefit, no belts any more. Braking is done with the motors, brakes only keep the reels from turning after they stop.

Don't worry about the pictures! I am still not ready, so no problem at all.

-Chris

[cbdb]

From the paper;

"The velocity of propagation in a lossy material follows from v = ω/β, whereby v = √(2ω/µσ). This is very much lower than that for a material with low conductivity.

For copper (using the material parameters in Table 1), α, β, and v are given by

α = β = 15.13 x √f and v = 0.415 x √f

Note the frequency dependence of α, β, and v—All are significant at audio frequencies!!! At 1kHz, the velocity is just 1/25 of the velocity of sound in air!"

Or 4 m/s at 100hz. So i can run faster than the EM propogation in copper! Am I missing something? Did I miss read? Or do they expect me to believe these numbers because of the fancy math.

[Passion]

Hey guys,

First post here. Yesterday I found this thread and thought I would make a contribution based on my experience with audio interconnects.

As a music lover and audio engineer I was curious about the measured performance of cables, this triggered by the difference I thought I could hear among different interconnect types, so I decided to develop a test system that could hopefully confirm what other people and I were hearing.

So, about five years ago I started playing with some ideas and building a prototype, based on what I thought was the best approach: A system that could measure the difference between the input and output signals of any interconnect cable. So, two prototypes were built, based on my own schematics, and a Praxis measurement system used for signal generation and display of time-domain and frequency-domain measurements. The second prototype also let me listen to the losses (just the losses, isolated from the input signal) with headphones, using music as a source, and A/B-ing two interconnects for losses just by flipping a switch (a fascinating exercise).

Since right now I’m travelling, with limited access to my documents, I'll leave most of the technical details for the future and go straight to the results and preliminary conclusions: In the attached PDF document you can see the measured magnitude of losses, relative to the input signal (2V RMS), for four different interconnects chosen at random, from a cheap one (top trace, with the highest losses) to an “audiophile" type, and a couple of things in between. This is for a 10k load impedance, which can be easily changed, with obvious impact on the measured results.

Conclusions:

•Interconnect cables can be quite different from each other (confirmed by measurements), with up to a 20dB difference in the magnitude of losses between common “good” and “bad” interconnects.
•Cables preferred by music lovers have consistently low measured losses, even if the magnitude of losses is not “flat” within the audio spectrum.
•Very good interconnects can be easily made from selected cable types from your electronics store (and very bad ones can be easily made as well….) Testing different cable types is a captivating exercise, for they all have different characteristics, based on materials and construction.
•More in future posts...

This measurement system may not be perfect, but I think it’s a good starting point to finally confirm that each interconnect has its own distinct characteristics; to understand where the difference is coming from, and also as a tool for audio cable development and evaluation.

I’ll try to answer any questions you guys may have.

Cheers,

Ricardo

[Magura]

Originally Posted by fdegrove

Hi M,

Could be anything really, phase-shifts perhaps, subtle changes in tonal balance. Just guessing.

This could be interesting to dig a little deeper into.

If time permits, I'll try to set up a test rig for this tomorrow.

It should be fairly simple to test if the compression is guilty, as it would be a matter of recording two pieces. One which is compressed to get under 15KHz, and one which is just cut off at 15 KHz. If there is a difference, it should be fairly obvious.

Magura

[SY]

Could you please explain what that chart is? What does it measure and what was the basic test setup?

[fdegrove]

Hi,

Originally Posted by Curly Woods

I am waiting for someone to tell me why I hear what I hear, rather than telling me that the differences do not exist. If I blather, it is to offset the innuendos from those that feel that are correct just because their understanding of the whole works, is not what I hear. Again I never asked anyone to agree with any of my views. They are mine and I enjoy them. If this upsets you, how is this my fault?

So what exactly do you think you're hearing that we don't? Voices?

Cheers,

[fdegrove]

Hi,

Originally Posted by Curly Woods

If I keep getting attacked I will attack back. The moderators obviously allow you to say anything that you feel like without impunity, including some of them.
You choose to see only what you want to see. I can not help what you think or how you think.

You mean without punity, correct?

More bad news; I am afraid it's mainly you doing the wishful thinking here.

It would be nice if you understood that it's not your hearing abilities that are under attack here, just that you don't seem to be willing to bring any evidence to the table that what you hear is nothing more than shifts in electrical parameters within the various cables you hook your system up with.

Surely, I don't mind to carry this on for another 500 pages or so but does everone?

No hard feelings,

[fdegrove]

Hi,

Originally Posted by Panicos K

Hi Chris,

Sad but true,our G36 will not live forever.Same problem with partrs here,my friend Nicholas has his last ones and keeping them like madThe result was really good.
I will tell him about your suggestions.
Oh....and those pictures I have promissed I'll send them this weekend.
Really

Well, well, well...What tape do you use for the G36 recordings?

Cheers,