[Waker]

As if there weren't enough audio issues to fret over--could air currents in your listening environment be distorting the music?  An extreme and very real example occurs at outdoor events when a strong wind gust literally blows the sound away for a second or two---the sound waxes and wanes because the air that the music was traveling through is suddenly replaced by in-rushing air that was not transmitting the sound wave.  No sound reached you until that new air was stationary enough to transmit sound energy to you.  Imagine then, that air currents in your room from fans, hot air registers or a casual breeze can move air just enough to distort that pristine sound wave ever so slightly. And what about humidity and heat? Do you think your system is better in a cool or warm room, dry or humid? It's all about air!       

[pjnad]

Ah...a true "goldilocks" issue  Having been to many outdoor concerts the phenomenon you describe is accurate and I can remember being frustrated with the sound on a windy day.
My listening room is fairly large and is located on the south end of the house, there are two registers on the north wall approximately 8 feet up. When we put in our forced air system it was determined that was the only option...in one corner of the room we have a woodburning stove. There are windows on three sides of the room so, when it is very cold outside the room stays pretty cool. There is a definite change in the sound depending on the temp. If the stove is in use the sound seems heavier and a bit more congested than when not. When it's very cool it sounds good, but it seems that the ideal is when the room is naturally about 68-72.

[Waker]

There is a definite change in the sound depending on the temp

Does this mean we'll all have to tweak the air?  Imagine what differing densities and sizes of molecules hang in the air depending on temp and humidity--and what about the purity of the air? Sound waves are propagated by molecules bumping into one another and passing on the energy.  What do thousands of macro dust particles do when hit by an energy wave? Do they distort that wave? It would seem so.  Maybe there IS something to "clean sound."     

[James Tanner]

Does passing wind while listening count???

james

[Rclark]

This may seem strange but I think I've noticed over the years that the system (or rather, systems I've had going) sounds better in winter, in a cool room. More and slower moving molecules? Or just imagination. Who knows.

[DaveNote]

Never experienced this phenomenon, but it is worth knowing that it exists.

Dave

[avahifi]

You guys have opened up a market for a whole new audiophlake expensive accessory - - - audiophile grade air packaged in convenient spray cans to spray into your room for serious listening sessions.

This will be almost as big a hit as audiophile grade vacuum for use in your tubes.

One great advantage of selling audiophile grade vacuum is that you can't be sued for product liability issues.  Your iron clad defense is that you did not sell the user anything at all.   

Regards,

Frank Van Alstine

[Elizabeth]

Locally I am above a valley two blocks distant. Across the valley are train tracks.
Well at night it depends on which way the wind is blowing.. Some nights I can hear ALL the train activity, cars being switched, engines moving..
Other nights not a peep, even though just as many activities are going on down in the railyard.
All depends on the wind.

[PRELUDE]

Now which one would be the better upgrade.The wind or winter?
I think for my next upgrade I am moving to Amsterdam or Montreal if winter has to be better.

[Anonamemouse]

Now which one would be the better upgrade.The wind or winter?
I think for my next upgrade I am moving to Amsterdam or Montreal if winter has to be better.

Keep in mind that The Netherlands is the most expensive country in the world when it comes to taxes (often hidden under a different name). In the end we lose about 72% of our income to the bottomless pit called government. Just owning a car here costs about 3 euros per day.

[pjnad]

Don't forget...when most people open their mouths it's nothing but hot air coming out...so remember don't talk and only breathe through your nose when doing serious listening! 

[thunderbrick]

Yeah, mouth-breathers are forbidden in these here parts.

Most of them listen to Bose, Yorx, SoundDesign, white van speakers, etc.

    

[SoundGame]

Does passing wind while listening count???

james

but 

[won ton on]

James,isn't passing wind methane and what effect does it have. Frank,what effect does the vibrations from passing gas have.i suppose as long as it's overpriced gas it's ok. sorry guys i couldn't resist.javascript:void(0);

[BrysTony]

It depends on the frequency and amplitude. 

[SoundGame]

The compression and the muzzle velocity may have impact on the density of the forthcoming wind and thus, potentially result in EM emissions...

[PRELUDE]

It won't be cheap to keep it cool.
The cheapest on cost more then a 4BSST2.
http://www.globalindustrial.com/g/hvac/fans/pedestal/54-high-velocity-indoor-outdoor-pedestal-fans

[Rclark]

Being near the sea level in a cool, temperate state, I must have the best air SQ  You suckers in Denver, not so much.

I would be willing to pack some and ship, expect Fedex to be pretty cheap. I can use gallon jugs. I cannot supply sea level pressures, that is up to you.

[jjc1]

Keep in mind that The Netherlands is the most expensive country in the world when it comes to taxes (often hidden under a different name). In the end we lose about 72% of our income to the bottomless pit called government. Just owning a car here costs about 3 euros per day.

  We'll probably surpass your 72% here in the good old US of A if something doesn't happen in  Novemeber.

[James Tanner]

http://www.positive-feedback.com/Issue59/harmonizer.htm