Sound In Air Vs Water - Sound Speeds
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- Опубликовано: 30 окт 2024
- In another video entitled "Speed of Sound" I discuss what factors affect the speed of sound. For comparison, I use the speed of sound in air against the speed of sound in water. By now we know which of the two sound travels faster in but does that mean that it maintains higher fidelity over that same distance? Turn on your ears and listen. Sound Speeds!
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I found your demonstrations to be the clearest and most relatable of all the air/water sound propagation guides I've read.
Thank you. :-)
Yeah that is one thing they taught me when I got certified for SCUBA. Sound travels farther in the water then it does in the air. Great experiment you did. Good work :)
Thank you. Yeah, take special care when in water. Loud volumes can damage your ears and... there's no going back once you blow your eardrums.
Then it does what after? 😂
?
So in short if I say hey underwater I can get a response faster than on land haha
Only from fish.
This answered the exact thing I was wondering about! Thank you for making this.
Sure thing. Thank you for watching it.
Thankyou. Now I understand it better.
Very good. Thanks for watching.
that was awesome bro
Thank you
Bro! Thanks now i got it.
Sure thing. Thanks for watching.
Great test, water is better
It is
Very well explained. But how does the sound travel in warm waters and in cool waters? Also the salt affects the sound waves. Could you please be so kind to explain?
Warm and cool waters: the same way as in warmer or cooler air. Faster moving warm particles move sound faster than cool particles because the particles are more excited and have more energy.
Salinity of water: the denser and larger saline particles give more surface area to carry the sound.
@@SoundSpeeds Thanks so much!
Glad to help
I have 2 questions, when entering the water why does sound disperse not increase when it should do the opposite?
If density makes sound travel quicker why can't it pass through solids? (well it can but it decreases the sound though)
1) If you're talking about the way it sounds in this video, I was using a hydrophone so it's designed to pick up vibrations in water.
2) Changing the medium affects the energy. That's why if you swim underwear and yell, people can hear you in the water but no on the surface. Air to water to air. It works better going from less dense to more dense as a rule like how in water you can hear people talking outside the pool but you can blast and underwater speaker and it won't be loud above water
@@SoundSpeeds I see, thank you but to follow on the first question, would that mean we can't hear clearly under the water because we aren't designed to hear vibrations better underwater?
It's really nice to see that you still answer questions even though this video is years old XD I just realised when I checked the description XD
The sound we are used to hearing don't translate properly to water because they are created in air and that's how they are created. If underwater the sounds were created the exact same way as in air but created perfectly and your ears were waterlogged, it should in theory be the same
sound travels faster In water than in air
Yes
nice video man
Thank you. :-)
Your experiment was good, thanks. I see it so I can believe it now, but I still dont understand why. Because that's not what happens when you're under water. I get the distortion, but it's not like you'd here Charlie Brown's teacher on the other end of the pool. Instead you'd just not be able to hear her at all.
The difference is that this is a high pitched click not a voice. You're right though, a voice spoken in air picked up by a hydrophone would be totally different.
Great test !!!
Thanks dude! It's been requested that I process the noise out of the sound, normalize and re-release it to see how the sound degrades over that distance if gained up. Watch for that this week.
This experiment makes me feel really sleepy for some reason
Hmmm...
You should test how sound across land is softer than sound across the water/pool, how sound is amplified above the surface. I suspect that the sound is not proportionally diminished by the distance from the shore, meaning one could belv that sound 20 feet from shore is double the DB as from 40 feet out on the surface is twice as loud than sound 80 feet out from the land. Take measurements at one foot intervals going out and see if it is proportional. very intriguing topic which 0% of all the science classes I took in school ever covered.
I'll have to think about how to do it without a large body of water nearby. I could talk about it, I guess, but it's difficult to measure. Inverse square versus environment.
What about frequency does a certain frequency travel worse in water...
So it takes mass to make sound...
So no sound in space...?
I don't understand. Sound has to have a medium to travel through.
That's kinda counter intuitive I thought because the molecules in water were closer that would increase friction meaning sound wouldn't travel as far odd.
Quite the opposite. Less energy lost jumping from molecule to molecule.
@@SoundSpeeds to my knowledge with physics there's empty space between molecules, is energy loss to the atoms in the molecules themselves or is there somewhere else it's going. You wouldn't happen to know would ya I'm genuinely curious.
I'm not a scientist but to my knowledge as molecules transfer energy, there's a tiny amount lost. Technically energy isn't created or destroyed, it's just changed, so that bit of energy that's "lost" happens when the molecules return to original position.
@@SoundSpeeds I gotta new task have a deep conversation with a physicist on thermodynamics. Thank you kind sir for the information you were able to provide and the wonderful educational material that is this video.
Thank you. :-) Thanks for watching!
Sir , l have a question why speed of sound traveling fast than perfume l mean , we hear the sound in air quickly than any kind of perfum
I don't understand. Perfume?
perfume mean fragrance
I'm trying to understand the question. Are you asking why sound travels faster than smell?
Yes sir , absolutely right
I'm not an expert on smell but if I were to guess (and this is a guess) I'd say it's because vibrations don't have to physically change to transmit. The chemical composition of the air doesn't change for vibrations to move thru them but a smell does. The smell would also dissipate quicker than a vibration would diminish. I imagine human sensitivity to sound over distance is stronger than our sense of smell over distance. Sharks can smell blood for miles in water but they wouldn't be able to hear sound nearly as far nor smell it at all. Different sensory mechanisms. Also take into account things like outside forces pushing back on the sound or smell and dissipating it quicker. A light breeze may slow sound down a few meters over a second of transmission but that's enough to completely prevent a fragrance from moving a particular direction. Just guesses.
Is it better thru water using sound wave therapy?
I hope u can expain.
Thanks
No idea as I'm not an expert at therapy.
Nice 🔥🙂
Thank you. Thank you for watching
Thank you. Now the question is as the sound wave travels through the water, the molecular structure in the water changes. And it is plausible it travels faster and the sound is also better than in the air....
They only change due to compression and expansion. That why explosions in air only affect the air for a few dozen miles but under water, earthquakes cause tidal waves hundreds of miles away.
@@SoundSpeeds mmmm🤔 so the wave actually gains momentum as it travels thru the water... Outstanding
No but as a vibration pulses thru the water, as with air, the water is compressed. The momentum pushes thru the water in pulses because the compressed water expands out the opposite end. It's just like waves in the ocean. Big waves lead to lower water levels before the next big wave comes in again but as the waves get shorter, the water level doesn't go down as much.
@@SoundSpeeds so if we send a sound at the proper tone thru quartz the compression will release an electrical charge.. Peizoelectric. The question then becomes how much energy to produce the proper sound to activate the crystal without striking it. Instead just pulse the pitch via speaker thru the quartz and we have a generator of sorts. Lil in lot out is the goal.
Sounds like a math problem. Waaaaay out of my area of expertise.
Excellent.
*bows*
Great test! Quick question: how is sounds propagation affected going from one medium to another? Air to water and vice-versa. Being a mechanical (compression) wave, how can we relate this to an expolsive Shockwave and how that would propagate through two different mediums?
If I'm understanding correctly... You do lose some energy and characteristics when you change mediums. That's why when you are in a swimming pool, someone that talks above the surface sounds lower in volume and muffled. If you try to talk in water, you're still speaking in air and that quickly changes to water and does the same thing. The denser the surface the sound is traveling thru, the higher the potential for pressure without distortion.
As for an explosive shockwave, that would be a huge amount of energy moving and it too could face a slight reduction in pressure over distance and as surface mediums change. There's so much more power behind it though and it's not always just acoustical energy that's moving. That's why an explosion in space that has to do with pressure changes would dissipate instantly but if it were due to rapid moving fire from an exploding star, the matter would travel quietly but without losing speed until it encountered something to disrupt that speed and then it would collide and transfer that energy thru the solid causing a lot of vibration and damage. If you were floating in space a foot away from the explosion you wouldn't hear it unless blast waves directly put pressure on your ears.
@@SoundSpeeds thank you for the rapid reply! I was having a debate with a friend about this and you pretty much confirmed my thoughts on the subject. I'm sure more research could shed more light, but based on the factors given I think you and I are both on the right track.
Would you agree that the distance above water, magnitude of explosion, and distance from said explosion would make a significant difference in impact felt under water (given what you said about transference through two mediums)?
It all matters, yeah.
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Welcome aboard
Could you do a similar experiment with sulphur hexaflouride? We've seen plenty of people that breathe in the gas and their voice drops really deep, but would sound travel differently through the gas vs air? As heard with air vs water?
Obviously, no one would want to try this with a swimming pool full
@@pragalu LOL. I don't know how I could get enough to conduct a test like this...
That's what the equation tells
V=B^1/2 rho ^-1/2
Isn't it
I'll take your word for it.
Cool
👍
you need to go into the center of the pool and do that
Yeah, if I do another hydrophone video, I'll do some things differently.
Thanks for the excellent video :) Would you mind if I ask the names of the microphones!?! >
Air mic: DPA 4017B
Water mic: JRF D-Series Hydrophone w/ Lo-Z converter
@@SoundSpeeds thank you so much!! have a nice day 👍😄
@@minjunekim5322 Glad to help
sound travel in water better than air for far diatances
Yep.
Ok this is cool
Thanks for watching
Sound Speeds hopefully we can collaborate cause I have this cool experiment I wanna show you.
Sound Speeds is has to with sound. I’m currently using fl studio but I made something that can be educational and it applies to the real world.
Shoot me an email
You'll need to email me if you want to propose a collab. You might also remove your email address from public view on RUclips.
Nice
saral singh manhas Thank you
No good amigo. I can't believe the concrete married tightly to both water and tripod, did not carry much of that sound.
Acoustics works differently under water. The boundary layer effect you're referring to didn't affect anything in this case.
wao that content i got i am lucky
👍
thanks 🌼🌿🌸☘️🍁
Certainly! Thanks for watching.
Wait is cause it's louder underwater that means it moves quicker
No. It definitely loses less energy in water.
Please make difference in frequency and wavelengths practically
I'll do more with Hydrophones in time.
It would seem that the higher frequencies are dramatically influenced by water as the low frequencies remain nearly unchanged. A frequency test at the same pool would be a great experiment.
you didn't even answer the question on which is quicker
Sure I did. Watch again.
Well, what were the results?? Bogus.
All real
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Off topic but OK.
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...
Your tranzition are annoying, STOP BLINKING!!!!!! I WILL BLIND
They changed. This was early in the channel. I rebranded a year later.