Aliens, if they exist, must have some form of speakers. Physics applies to all of universe. How they can operate?

Opinions, opinions..... always someone with a different idea than mine.
Which WAS, I might add....... to keep it looking as close to a 1960's/70's console as possible.
Which wouldn't be, or look the same, by plopping in a so-called "real" turntable.

And besides, the mint condition 1969-era Garrard model 3500 in the photo has a very nice gimbaled tonearm with a Pickering cartridge installed.
Quite suitable for the purpose.
 
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...he is doing "channeling" sessions , live to audience...
In other words, Darryl is doing exactly the same mindless, superstitious routine that con artists have been using to fleece gullible people for thousands of years.

People like Houdini and The Amazing Randi devoted large chunks of their lies to exposing charlatans like these, but it seems many of us never learn. There's always yet another "medium" with a self-proclaimed magic "channel" to the other side/other galaxy/nether world, and she/he will always find gullible victims to prey on.

Another case of "Those who ignore history are doomed to repeat it."

-Gnobuddy
 
In an infinite universe things that can occur eventually will; meaning since speakers exists on earth they will at some point also exist in other places. But since speakers require air (atmosphere) which is not commonly appearing in space I find it more likely that aliens would have a DB9/RS232 port in their skull transmitting high def atmos audio directly from source to brain avoiding all types of low efficient transducing technology in favor of almost endless SPL/Dynamics only limited by imagination and IQ.
 
Why would aliens have music? Seems unlikely.
Exactly. Most of us don't realize that music is created by ancient wiring inside the human brain, not by sounds in the atmosphere around us.

That brain wiring is a product of the way life happened to evolve on earth over the last several hundreds of millions of years. It is an accident, in other words.

Let me expand on that a little.

There is a medical condition called "amusia". One form of it is congenital, i.e. people are born with it. A person with congenital amusia was once asked what music sounded like to her. She replied that it sounded exactly as though she had gone into her kitchen, picked up half a dozen pots, pans, and pieces of cutlery, thrown them all up in the air, and listened to the sounds they made as they hit the ground.

Think about it: what is the difference between a collections of pots and pans hitting the ground, and Jon Bonham behind his Led Zep drum kit, pounding out a drum-roll? What is the difference between a fistful of forks and spoons hitting the ground, and a double handful of rapidly played piano notes played by a concert pianist?

Objectively, there isn't any difference. Each of these phenomena is just a collection of sounds. To an oscilloscope, one is not that different from another.

A person with amusia has the same response as the oscilloscope. One group of sounds isn't that different from the other. If there is an emotional response, it's probably one of irritation or discomfort.

But if you are a human being without amusia, then, inside your mind, these different sound stimuli tend to evoke very different emotional responses. We may be deeply moved by Bonham's drumroll, or by the opening piano notes to Beethoven's Moonlight Sonata.

Our minds are wired by evolution to respond to certain types of sounds emotionally. Add in years of cultural exposure to whatever music you grew up with. The end result is that we no longer hear like an oscilloscope. Instead, we become biased: certain specific sounds, timbres, and pitches take on deep emotional significance. Other sounds do not.

Music only exists, if you will, to an abnormal brain - one that's been trained to assign emotional meaning to some sounds. It just so happens that most human brains are abnormal in this way.

We don't notice that our brains are abnormal, because everyone around us is equally abnormal. When someone isn't abnormal in the same way, we point at that person and say "That person has amusia!"

On planet earth, most lifeforms doesn't hear, produce, or respond to music. Only a handful (some whales, some birds, most humans) do. The human with amusia has lots of company - most lifeforms on our planet have amusia!

So why would we expect aliens from some other planet to have music? As Pano said, it seems unlikely.

-Gnobuddy
 
If they have speakers they likely would be only for “speech” communication.
In a documentary I watched on bioluminescence (light created by animals and plants), it was mentioned that biologists now believe that most communication on earth is done via light (bioluminescence).

When you consider the enormous volume of the oceans, and the incredible amount of life that lives down there in the perpetual dark, it all makes sense. Communication by light works for millions of creatures down there.

We air-breathing animals do a lot of communicating via sound, probably because it works well both in light and dark, and sounds go around corners. Useful if you want to warn your fellow cave-people that there's a sabre-tooth tiger approaching from outside the cave. 😀

So who knows, our hypothetical aliens may not make sounds at all (or they may not be very important to them). Maybe they light up like deep-sea squid when they're having a conversation. In which case, speakers wouldn't be of any interest to them at all!

-Gnobuddy
 
Yes those aliens were certainly known for their impressive sound system. Makes you wonder if they were a bit deaf.

In the novelization of the film, the synthesizer used by Earth to play the tones was borrowed from Stevie Wonder, which was a fun detail.
 
Yes those aliens were certainly known for their impressive sound system. Makes you wonder if they were a bit deaf.

In the novelization of the film, the synthesizer used by Earth to play the tones was borrowed from Stevie Wonder, which was a fun detail.
We got aliens driving around the streets here!..... blasting their sounds, and surely they must be deaf!