2. tech-talk
  3. 147563-110926

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
glupson
7,842 posts
 
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.
erik_squires
15,918 posts
 
Michael.....


I'm really not sure what you are asking here. Your use of the word "vibratory" seems to have usage I am not familiar with.

Can you restate for those of us less well versed?
Best,
Erik
michaelgreenaudio's avatar
michaelgreenaudio OP
1,019 posts
 

Hi Erik

"Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium point."

HEA is a little weird when they talk about "vibration". They tend to paint a negative when there's much more to the order of harmonics. It's all vibration.


mg

geoffkait's avatar
geoffkait
23,365 posts
 
Of course, the $64K question is whether the audio signal in electronics is vibratory. Everybody and his brother agrees the acoustic waves in the room produced by the speakers are vibratory.

The reason that’s the $64K question for those who haven’t had their pick me up this afternoon, is because of the whole argument as to whether it’s better to let vibrations run free in the system or to isolate electronics from them. Talk amongst yourselves. Smoke if ya got em.
douglas_schroeder
3,281 posts
 
Imo the lack of any clear definition of the "vibration" makes the discussion only marginally useful. Specificity would force a discussion of methodology. A nebulous endorsement or resistance to "vibrations" I find not much more meaningful than marketing. i.e. "Want to banish harmful vibrations? Then you need our product!"   :(

Once again, imo, expending one's efforts at "vibration" control as opposed to focusing on the signal path and quality of equipment (i.e. synergy) to be majoring in the minors, and minoring in the majors.  YMMV

i.e. When a person elects to use a smallish box speaker and then tune the crap out of the room, the stand, etc. they have already forfeited any chance they had to approach SOTA by the methods used. They have chosen to employ their resources on what is a more negligible aspect of performance rather than vastly improve the overall performance by expending time/money on a far superior speaker, i.e. one that can reach lower in LF. 

This is not meant as a troll, but rather a perspective from someone who employ�s radically different means to approach superior sound. One thing is for sure; there are some vastly different perspectives and methods going in this hobby. You pick your authority, and you get your results!  :)

I am not interested in debating my perspective.  




More to discover