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

michaelgreenaudio
The last person who used "lame" around here is verifiably clueless. You are in the bad company.
Extremely lame. No offense. Breakdown of the education system, obviously

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.


One must differentiate between the acoustic waves in the room or the sound of acoustic instruments 🎻 and the audio signal in wires. So far I’m sensing a lot of denial. God gave you one mouth and two ears for a reason. 😳 😳 😳 
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The Vibratory Foundation

In HEA we sometimes get stuck in myth building and from time to time need to make our way back to the real world. If you wanted to you could spend your entire hobby life reading or being a part of audiophile theory creating and to go with this product categories that are there to take your hard earned money and leave you with something a little less than "the absolute sound". In the Tunee world our view is a little different. We take what is and build from there. We know that audio is vibration and don’t try to disguise it as any thing but what it is. We do our best to keep up on the studies of vibration scientifically and how it relates to the fundamental interactions that are at the core of Earth’s function.

If there is one thing you can bank on with Tunees it would be, we use the proven technologies that have come before us as our ongoing template of truth. Creating a make believe audio world is not high on our list of things to do. HEA is a creation that in some ways was a good thing but in many ways has failed. "killing vibrations" for example was a major screw up the way it was introduced to the hobbyist and implemented in the components we bought. From the 1990’s forward a mythical audio chapter was implemented that took us off course and all kinds of "Fix It’s" were suddenly needed to be designed to help keep us from falling off the edge of the flat planet. Yep audio tweaks are a huge industry all on it’s own, but it was always going to be the case that the hobby and industry would need to get back to it’s roundness.

I don’t blame the guy who is down on "tweaks" at all. From my point of view components should have been made variable to start with and this whole sidetrack of heavy over built components and speakers and the overbuilt tweaks that have been made to fix them could have never existed at all. It was a big expensive waste of time and could have been avoided if we understood one thing, audio is vibratory. Audio is part of the Earth and the Earth vibrates. Researchers now measure our moving Earth’s hum from 3 variable points of view that ranged from ocean currents to atmospheric turbulence. You have the ocean bed, the surface crust and the atmosphere. Three different types of vibratory structures all interacting and all affecting your sound. Can you isolate yourself from these with audio tweaks? Absolutely, positively, unequivocally No. Attempts at audio isolation existing within Earth’s forces is not going to happen no matter how many HEA myth makers spin theories. We learn this in 3rd grade but were bent on recreating the world regardless when we laid our eyes on our first audio boat anchor.

Now that we have gone through that era we can return to where we were back in the 80’s and move forward as if that misleading chapter was never there. Sure we’re still going to feel the pain of investing so much and then trying to fix it but all will be forgotten as we listen to our variable audio systems of today and the future.

MG


taken from the TuneLand article "The Vibratory Foundation"
glupson1,860 posts03-27-2019 9:57pm
"...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.

>>>>>>When you don’t know, guess. That’s your strategy? 
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You can't say kill all vibrations when audio is a vibration. Again that's not anyone putting words into Geoff's mouth as he has said this on many occasions on a couple of forums at least.

Exactly that is what im trying to understand from Geoff the man who also promotes using springs under equipments. Which seems to go against his own words. 

It would be nice if one could go along and make this thread more productive by engaging in to a conversation based on thier experiences and learn more from others who have been doing it on a daily basis for years and to Op for decades :). Approaches may differ but learning them is where the fun is. 
"...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.

Hi Tjbhuler

Geoff said "The audio signal in wires in an AC circuit is actually alternating, not (rpt not) oscillating or vibrating."

That's not putting words in anyone's mouth, that's someone not understanding the audio signal or AC.

So you say "Hi geoff am curious here what is it about vibratory you don't understand ?"

Which to me is the obvious question. As Geoff would say this isn't rocket science. You can't say kill all vibrations when audio is a vibration. Again that's not anyone putting words into Geoff's mouth as he has said this on many occasions on a couple of forums at least.

Geoff, no one would be raising the questions of you if you never said this. It's a matter of why say kill vibrations when that's what audio is. This makes no sense.

And why insult (again) someone you have no clue of his education. Sorry Geoff but both Tjbhuler and audionuttoo have educations way above your pay grade in the area of vibration. One in the electrical world and the other in the medical world.

MG

Say, aren’t you the guy that can’t spell the word totally?


As usual Geoff goes in to his kiddy mode and start sending bad vibes lol!!!
I’m curious what you don’t understand about what I’ve said. Say, aren’t you the guy that can’t spell the word totally?

I think it was Peter Moncrieff who many years ago in his IAR publication proposed the notion of there being vibrations both good (Brian Wilson concurs ;-) and bad. All agree the vibrations of music itself are of the good sort (though Buddy Rich hated Country music, and some Country music lovers hate Jazz), but it appears when it comes to bad vibrations there is some disagreement.

Isolation is simply intended to keep non-musical vibrations from polluting the musical ones contained in recordings. How can anyone disagree with that notion? For those agreeing with that notion, the question then becomes how best to minimize the pollution.

chazro580 posts03-27-2019 3:24pmGeoff - Earlier you stated how you were an early customer of Michael’s. It seems like you’re no longer a believer (a tunee!?) and I’m wondering what happened? Did you initially hear the benefits, or were they never there? I’d really like to hear the story.

>>>>>There is no story. Nothing happened. It doesn’t mean anything. Don’t be such a drama queen.
This is becoming quite an excellent example of the Brer Rabbit and Tar Baby routine. But I can’t figure out if you’re the Tar Baby or Mr. Fox. 🦊

Just to be clear, I never said audio is not vibratory and I never said audio is not vibration. You are putting words in my mouth. This was bound to happen when you don’t define your terms. As Dylan says, words have different meaning to different people. If I say the word house we all have a different picture of what a house is. If isolation was not real as you seem to believe then LIGO would never have been able to detect and observe gravity waves. Just like the optics in LIGO the optical system must be isolated and protected from vibration that would interfere with the observation of gravity waves the optical system in CD players must be protected from vibration, especially the very low frequency seismic type vibration, otherwise the CD player will not sound as good as it could. The same logic applies to turntables since very low frequencies excite the circa 10 Hz Fn of the tonearm and cartridge. 

I would think so, it doesn't get easier than this Geoff. But, you believe that audio is not vibratory, is this correct? You believe the hairs in your ears don't move, nor does the cone of a speaker? If they aren't moving what are they doing to interact?

If you're concerned over a word, then go ahead and give it a shot. If vibration is being used by these billions of people incorrectly than there must be a singular better word.

Your speaker cones are_______your ear hairs are___________electricity is___________sound is the act of ___________ . You don't like the word vibrating so what word do you want, maybe "moving" maybe "forcing" maybe "interacting". Tell us what one word would you like to use in the place of vibrating and the world can entertain this. I'm not trying to be a smart "A" Geoff, just trying to use what the rest of the world uses when describing sound with a nice easy to understand set of word roots.

MG

Well Glupson did a good job in this case, because he was correct. Remove vibratory from audio and there is no sound. The electricity to the system wouldn't work, the parts that host the signal wouldn't work, the drivers on your speakers wouldn't work nor would the hairs in your ears work.

There would be no pressure in your room for you to hear and we wouldn't be here talking about it cause there would be no Earth, the Earth vibrates :)

Geoff you're trying to remove too big of a part of nature to make your point. Hey an "Audio Point" :)

Folks in audio saying "kill vibrations" makes no sense because that's what audio is. If you kill vibratory interaction the whole planet goes down the drain.

MG

but of course that could be me vs 20,000 somethings or whatever that trolling was LOL

Glubson was obviously talking about acoustic waves in the room. Glubson has this knack for stating the obvious.
Geoff - Earlier you stated how you were an early customer of Michael's.  It seems like you're no longer a believer (a tunee!?) and I'm wondering what happened?  Did you initially hear the benefits, or were they never there?  I'd really like to hear the story.

No where we stand is just like Glupson said in the first post here and audionuttoo reaffirmed.

"Sound is, in the simplest term, a vibration. No vibration, no sound."

Where we disagree with you Geoff is when you say "vibrations should be killed" or however you say that phrase. What is it "a good vibration is a dead vibration" or something like that.

Vibrations are very important because it is a word that can be used in the out of tune sense as well as the in-tune sense.

MG

LOL, the star sound card. You crack me up sometimes. You should get a list of all the employees who have been let go from RoomTune after working there for only 9 months 20 some years ago to use in your spins.

Better yet, I'm hoping you and us become friends so we can help audiophiles together and be able to talk through things when there are misunderstandings of communication.

MG


I’m not saying they can’t be in the same camp sometimes. I’m saying they are not the same thing. Their technical meaning is different. It’s like a Venn diagram. Sometimes they overlap. But this is not the real question anyway. The real question is whether vibration can interfere with the audio signal. I’m sure you agree. The oscillation/vibration issue is kind of a red herring.

"“Oscillation” not equal “vibration.” You need to define your terms."

Now I feel we are getting somewhere as far as terms. Is your main objection that you feel "oscillations" and "vibration" should not be in the same camp?

MG

I never said isolation was absolute. Where do you come up with this stuff? It sounds eerily like Star Sound. 🤡 all these words you’re throwing around have different meanings to different people. So discussions can get bogged down rapidly. When you assume something it makes a fool out of me and Uma Thurman.

Hi Geoff thanks for the reference. Here's why I ask.

 "However, in terms of sound quality the height and internal pressure can vary."

Absolute isolation does not vary. Something that varies is not isolated.

"because there are a lot of variables involved"

Again if we are speaking about "vibratory or not" variables relates to vibratory adjustables.

The reason I wanted to be very clear on your responses is to make note that the responses you gave were completely in line with the audio signal being vibratory, tunable and not isolated from the fundamental interactions.

MG

“Oscillation” not equal “vibration.” You need to define your terms. Words mean different things to different people. - Bob Dylan

Geoff when you were instructing with "oscillating or vibrating" memos saying that the audio signal is not either but sighting an alternating current. You do realize that AC is measured in oscillations don't you? In fact in electrical engineering you are taught that AC is vibratory current.

BTW audionuttoo "Certified Professional Engineer and Class A Master Electrician" is pretty high up on the food chain of engineers.

Sometimes I get a little kick out of you and kosst, as you both try to marginalize our teaching here at the tune without knowing our collective schooling. It's kind of a joke amongst us when we talk about "audiophile experts". We usually find that the audio internet EE's who boast the most actually have the fewest courses under their belts in reality, or the most dated.

MG

I answered your second question regarding whether I believe the audio signal is vibratory several different times. As I also stated earlier you must define your terms before any discussion can occur. Terms such as vibration, oscillation, audio signal. Otherwise, what’s the point?

As for your question regarding air bladders/tubes/springs and load I answered that specific question earlier today around sevenish.

"Michael, let me draw your attention to my posts earlier today in response to the same and related questions."

Yes I have read your posts thanks. This is why I'm careful to ask with more specificity.

Geoff in regards to isolation you don't believe in the audio signal being vibratory I take it? How do you describe the variable interaction the signal has with the fields, or as some would say field?

In our stage testing we have been able to establish such control as to virtually be able to shape the soundstage by using the audio signal's variables without distortions. With isolation as you term it how are you able to make compensations to the sound. I have never heard any two "isolated" systems to produce the same sound. If a system is isolated you would have the same sound would you not with any other "isolated" system, which has never happened to the best of my knowledge.

interesting conversation

MG

Michael, let me draw your attention to my posts earlier today in response to the same and related questions. 

Hi Geoff

Where are you placing your springs? I have always found them to be very sensitive and very equipment dependent (one size or type does not fit all). I've also found them to be material dependent depending on the types of materials being used in the components themselves.

Also with the air tubes you didn't mention that the component needs to be properly weight distributed. The bladder products perform very inconsistent because of the distribution of weight most heavier components have.

When you do your testing do you use more than one bladder. Reason I ask is because using one bladder doesn't seem to work very well because there is less pressure being applied to one area of the skin than another. One part of the bladder may have 8 pounds sitting on it and another may only have a few ounces.

MG

Most audiophiles have a thermostat. Besides, unless there are very big swings in temperature it’s not really an issue. The same applies to the speed of sound in air. Maybe Superman would worry about it in his Fortress of Solitude. But not the average audio dude. Not an issue audiophiles should worry about. If that’s your best argument against isolation it’s not very convincing. It doesn’t make sense and if it doesn’t make sense it’s not true. You cannot fool a thermodynamicist!

Another problem with the tube is you need to keep your room climate controlled and you can't used the device with any components that produce heat if you're hoping to keep a consistent interaction. Same holds true for any device that is in contact with a surface.

for example

If you are using a tube component with springs and turn off and on your unit the sound will slightly can daily. Same with Class A and some warmer running A/B.

MG

Addendum: one big issue for inner tubes and air bladders in general is that air leaks out through the rubber fabric, just like it does in bicycles. To maintain proper isolation (design height/stiffness) one must pump up the %@&$% inner tube every other day. That’s one reason why I eventually went to mechanical springs.
Great question. The ideal internal pressure depends on several factors - the size of the tube or bladder, the number of bladders and the total weight. Design height is the technical term for an airspring height where max isolation is achieved. Design height is a function of air pressure for a given load. However, in terms of sound quality the height and internal pressure can vary. I find a stiffer air tube or bladder or airspring is better than a floppy one. So, the objective is not to have the component “floating on air” as it were but to achieve an optimum mass-on-spring effect, which usually means stiffness is desired. A resonant frequency of 2 to 3 Hz would be a good target. Having said that my guess at inner tube pressure could have been too high, it depends on load. If the load is relatively low then the internal pressure could be low and achieve proper stiffness.

You can measure the Fr by bouncing the component up and down on the air tube and timing the cycles per second. But because there are a lot of variables involved, including how the component is mounted on the air tube, how the air tube itself is mounted, where it’s mounted, etc.

Furthermore, an inner tube is not an ideal geometry. An ideal geometry is low surface area on top and large volume. A long vertical tube would be ideal in terms of geometry but would be very difficult to work with because it would be very floppy. My original Nimbus Platform used a single air spring, which is relatively floppy so the design needed a secondary horizontal sprung system to build up lateral support. The Nimbus airspring was fitted with a large auxiliary air canister to provide a high effective internal volume of the airspring.
Hi Geoff, with regard to your comments on the best pressures for tubes, 15 to 30 psi seems high, we’ve had great results from extremely floppy tubes probably sub 2psi supporting square slate platforms. I was wondering what your thoughts were on this?

Your isolation table design is very interesting but I understand is no longer available? What are you currently using?

Stacore are getting positive customer feedback, are you aware of their designs? I hope to evaluate soon.

Thanks.




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Hi audionuttoo

"Those who don't experience it will always question and debate it."

First, I'm thrilled to death that you have come up! Second, helping people, especially now, in this industry is paramount in the face of the major changes taking place for listeners. We are at this great moment in the hobby of playback where listeners are moving from very high mass systems to systems that are able to produce so much more music. But listeners need people like yourself to help them make the move to a more practical place.

We went through the age of big robust components and to be honest it was a good time, but now we enter a new chapter. This is the era of the listener and the tools of Tuning. The homework has been done over the past 30 years or so and the demos have been made and continue every day. As you said  "Those who don't experience it will always question and debate it." and that's the bottom line. If someone doesn't have a tunable system they're stuck in the world of talking points.

I hope we see more of you my friend!

Michael

You’re close. Very close. The audio signal in wires in an AC circuit is actually alternating, not (rpt not) oscillating or vibrating. You must have not gotten the memo regarding acoustic feedback to believe that isolation of speakers and components is of the utmost importance. I.e., the audio signal doesn’t like vibration. They clash. In fact that’s why the natural frequency of tonearms and cartridges are designed to be much lower than the lowest frequency almost all speakers are capable of producing. Perhaps you could be open to the possibility you’ve been following the wrong, you know....

🐑 🐑 🐑
As glupson, the first to respond said, "Sound is, in the simplest term, a vibration. No vibration, no sound." I totally agree - no debate necessary!  Yes we have the sound waves in the room and the audio signal itself is an oscillating/vibrating signal.  So the question is - do we want to use these vibrations which we agree exist, to our advantage, or to damp them out, thereby affecting the musical signal that created them.  To me, the answer is obvious - we want to use them to enhance our musical experience.  However, knowing how to do that is something very few people understand and even fewer people actually experience it to its fullest extent.  Those who don't experience it will always question and debate it.  I agree totally that isolating vibrations affects the sound, some think creating a better "sound", others like me, think is just creates a "different" sound.  But stepping back and learning how to truly use all those vibrations to enhance the sound is what will drive this hobby to the "fun" place it should be!  Michael Green is the only person who has shown me how to do this, and has demonstrated it to me in its fullest extent. Kudos to Michael for starting this thread!  Everyone is entitled to their opinion, and I'm sure plenty of folks will come up here with opinions contrary to mine, and that's fine, that's  what this forum is for.  Just let me leave you with this final thought - experience one of Michael's fully tuned systems that uses all the vibrations to enhance the music, before you throw rocks at the idea.  I'm sure Michael would be happy to have everyone stop by, just not all at the same time! Cheers!
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