Vibratory or Not?


This is a discussion that for me began on the Stereophile forum which went horribly wrong in my opinion. I was wondering though if this same topic could be discussed here as it comes up a lot in one form or another. My background has been about vibratory tuning as far back as the 70's work in the recording industry and continued into home audio and beyond. The audio signal is one that can be easily tuned, I doubt there is much room there for debate, but we will see, it's Audiogon after all. This being the case I have always concluded that the audio signal is vibratory so has anyone I have ever worked with. It's a common and sometimes even daily practice for someone here to make a vibratory adjustment changing the sound which is obvious to all.

On some of these forum threads however you will see posts saying to get rid of the vibration, without any explanation as to how to remove vibration without altering the audio signal. Every vibratory move I have ever seen done changes the performance of the sound. I've also been a part of the variables of the audio signal during play in real time. If the audio signal is not vibratory how does it change?

I invite you to discuss the vibratory structure and nature of the audio signal.

thanks, lets keep trolling to a minimum please

128x128michaelgreenaudio

Showing 14 responses by glupson

michaelgreen,

"...because we already have the credibility we do."
Yes, until the moment you (unknown, not you personally by default) use the word "troll". Then it is game over for credibility in that particular discussion.

"If we were talking about cars right now we would be talking about computers keeping the performance in line yet our audio systems..."
This may be apples and oranges. If for nothing else, because of different media, forces, and what not, involved.
"It is almost physically impossible to use springs so they aren’t isolators."
At the same time, it is almost impossible to use springs so they aren’t connectors.

There’s no escaping that.

In the end, it may be about the balance of those two actions. That is where it gets tricky. Theory, experience, and a little bit of open mind is needed.

Inner tubes will definitely not get you far if they leak like mentioned in some earlier post.
"Trying to displace physics variables from this hobby is strange at best..."
This cannot be more correct.

The only practical problem is that, every now and then, someone who does have reasonable knowledge of physics comes to these threads and asks questions or provides explanations. Sadly, more often than not, such a person becomes labeled as whatever the insulting word of choice for that day is. Insults can fly from both sides (tunee or not tunee, follower or oponent of whatever trend is discussed, etc.) depending on the topic discussed.

Displacing physics (laws, variables, whatever else related to it) is at times laughable but more often a sorry example of arrogant ignorance. Unfortunately, some of the pro-physics discussions are just like that, too.

However, even if the physics is applied/explained correctly in some discussion, the fact that that the ultimate receiver is biological material with its own rules and shortcomings gets ignored. Your ears are sensitive, but not flawless. They may not pick up the differences envisioned in an Internet chat.

michaelgreen,


People may be more inclined to change their gear than their brain simply because it is easier to change an amplifier.

At the same time, I was not trying to bring the brain into this discussion (geoffkait did that). I stayed firmly planted in the vibratory realm. You might have confused us and expected different approach.

That inaccuracy out of the way, one thing I have learned over time is that every time I thought something was simple it was more likely due to my inadequate knowledge and understanding. Science of sound is anything but simple, no matter how smart or knowledgeable you, me, or the third person may be. Of course, when it comes to practical applications, you may be way more experienced, quicker, and successful than many, but, again, science behind it is not simple. Do not confuse those two.

My mentioning of the head was actually aimed at various effects it has on vibrations reaching it and effects that vibrations reaching it have on head. Aside of bony structures and soft tissues, I was, silently, focusing my thoughts on airway passages and sinuses.

That is not to say that brain is not involved in the whole story and someone may add thoughts about brain/vibration effects.

One thing I have learned about types who use word "troll" is that they resort to it when losing ground and getting frustrated with their own inability to provide logical arguments. In some way, using word "troll" catapults a person into being a troll.

Do not do it. It takes the credibility away in an instant.

"...and how simple of a science it is..."

Ooooopsie, not so fast.


Practice may be simple (although I doubt that, too), but science behind it may not be so.

geoffkait,


"Glubson, you realize there’s a very thin line between being stupid and pretending to be stupid, don’t you?"

Look what I have learned in this thread and what may apply to your understanding of what I wrote earlier...


fool’s par·a·dis noun:

  1. a state of happiness based on a person’s not knowing about or denying the existence of potential trouble.

flapjack,

You are definitely right and shape of one's ears must account for something. That, along with those few things I mentioned, is almost never, if ever, mentioned here (Audiogon). In this particular thread, chatting about vibrations, controlling/affecting those parameters may yield significant change. It may not always be practical, but this is a theoretical discussion anyway.


I suspect that having chronically thickened sinus mucosa affects vibrations, and consequently perception of sound, much more than some fancy wood cable elevators or inflated hoses placed strategically under the equipment. Those effects are, in fact, widely known and accepted. Widely minus one (geoffkait).

I know it may seem like a stretch, and it practically is, but when talking about vibrations and sound and regardless if you prefer them extra/modified/unadulterated, vibrations inside your head are very important part of the equation. However, they practically never get mentioned. It may be much harder to control them than placing a tube under the CD player, but maybe someone really dedicated can take them into consideration when tuning/tweaking sounds. Stick a helmet on the head (what material?), use Afrin before listening session, or something more innovative. That would be a really thorough approach to addressing vibrations. Hairstyles are another very important component of vibration management, yet they are also rarely mentioned.

As far as influence of vibrations on electrical signal in the head go, it may be much less pertinent than in other electrical applications.
It is not fair. I used to tell you that you should get your money back from your school. Come on, no matter how good I am, think of something yourself.
The last person who used "lame" around here is verifiably clueless. You are in the bad company.

geoffkait,

>>>>When you don’t know, guess. That’s your strategy?
Not quite. My strategy is "when not completely and verifiably sure, do not make absolute statements". Learn, geoffkait, learn.

Audio signal in wires is electrical. Audio signal in your head is, for the large part, electrical, too. Stating the obvious, at least obvious to some of us.


"...air leaks out through the rubber fabric, just like it does in bicycles."
The valve may be much more important leak in a bicycle. Now back to audio vibrations.
geoffkait,

"Glubson has this knack for stating the obvious."
Well, someone has to.

Someone, allegedly very wise, a few couples of posts above, wrote...

"You need to define your terms. Words mean different things to different people."

"...all these words you’re throwing around have different meanings to different people. So discussions can get bogged down rapidly."
I must be psychic. I knew you were going to say that.

So I stated the obvious in the first post here.

Do not go too deep into discussion about oscillation vs. vibration. Spring is coming and you are on the thin ice.
Sound is, in the simplest term, a vibration. No vibration, no sound.

It might have been inaccurately repeated to "get rid of vibration" and then also oversimplified during reading. Probably the actual "argument" is to leave the outside (not in an audio signal from the beginning) vibration out/suppressed so not to influence the sound in an, presumably, unsatisfactory way.

Now, some may actually find fiddling with "outside" vibration and subsequent results to their liking while some may consider it an anathema.
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