Weekend Projects: Visualizing Sound with a Chladni Plate
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- čas přidán 7. 12. 2015
- Build a Chladni plate and observe the visual patterns of various sound frequencies.
Make: Electronics, 3rd Edition: www.makershed.com/products/ma...
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I have been using the Chladni visualization concept for over 20 years to tune the tops of hand-made acoustic guitars. Instead of sand we use black pepper! Before final assembly and gluing, the top of the guitar is placed on 4 small foam blocks with a speaker below and in the center. As the audio frequencies are increased the pepper patterns show how the sound will be projected off the top of the guitar. If there are problems (non-symmetry, weak patterns, etc.) the under side of the guitar top can be shaved thinner in places to improve sound projection. This helps to make really fine acoustic guitars!! This presentation is a great start to help all with the design of many types of sound system projects. Good job!
Amazing
Very neat!
I wonder how the standing waves would react with magic sand. Fine sand/black pepper is ideal for quick results and to show an approximated shape of the waves, but maybe it can be traded for a high viscosity sand, and longer length of time. Maybe the waves will force the sand to assume a 3d wave pattern that hasn't been seen yet? Maybe not. If you or a jobless friend has this set up already, could you try it out and upload the results 😁 please?
This is awesome info. I find guitar making very fascinating. Very cool.
I freaking love how they took that feedback well and actually shared it with us. Props to you guys for that!
I watch your videos quite frequently, and honestly I feel pretty bad for you guys lol. Some of the comments are rough as hell, and the hilarious part is most of the people leaving rude comments aren't even going to make the project, they just want to shred on your creativity.
You guys do good work, you give me the courage to take on my own projects. Thanks for always being positive. :)
You have been granted a very special boon by the Devine to create sound energy. Would love to see the 2 D sound vibration images of your work using a chladni plate and compare them to corresponding yantras. It has been done before with Buddhist monks recitals. Mind blowing.
Wish I'd seen this 3 weeks ago. My daughter (7) used an old 12" subwoofer with an 11 .5" round cake pan taped (Gorilla tape) to the speaker and an online wave generator. We used 4 pieces of tape at the corners of the round pan. The shapes (in salt) were only about 60% as defined as some of your video. She did well in the science fair. Maybe next year, we'll improve. Thanks for the creative idea.
The bonus of using the pan was being able to put some water or vegetable oil in it to see the effects. Be sure to use some plastic to cover the area surrounding the speaker.
Thanks for showing this, would love to see this in person!
What if you used 3 or 4 plates at different height levels? Would you begin to see a 3rd dimension of the sound wave?
Would this ever work with audio frequencies? Like recordings atall? Thanks xx
you guys are really cool. .. love the feedback too. ..so glad I subscribed
Thank you for teaching us how to make one unfortunately I'm disabled and I'm unable to make one. Do you happen to sell them and how much are they?
How do I connect my frequency app to the amp and speaker, though?
Does it have to be loud for it to work?
Does anyone know the length and dimensions of the bolts?
What purpose is the Lexan sheet?
Hi
Will it work with vocals like singing songs?
Could you please attach a list of all the materials you used in this video please. I would love to recreate this 😃🙏🏼
There is a list of supplies given at the start of the video, granted, it takes a bit of transcription but the info is all there
Does the plate rest on the threaded rods
What is the utility of lexan sheet???
can we made this on big scale
Very nice!
Why does the cone need to be attached to the plate? If the outer four points are fixed, the acoustic vibration should still move the plate correct? Or will it move it at a function of the plates resonant frequency’s? If someone can answer this I will be grateful as I want to try this but not mess up my woofer.
What's the function of the lexan?
What kind of speaker did you use? Where did you buy it?
What model and type of amplifier are you using?
What is the material you used for the plate?? Aluminium??
Can I use acrylic instead of lexan plate?
CAN I SEE YOU GUYS DO MORE EXPERIMENTS WITH SOUND LIKE MAKING OR SEEING SOUND HOLOGRAMS ETC AND GETTING THE SOUND TO BOUNCE OFF STUFF
thank you!!!!!!! for the info!!! i am going to the store!!!
Love this!!!! Iam gonna make me 1
Hi.
What is the plate thickness? Is this aluminium or steel plate? And what all thickness plates can be used with a bow...1mm, 2mm, 3mm, more?
I am hoping to replicate this project soon it absolutely fascinates me.
on the theremin idea: any one know how to play the DR Who classic theme? i want to see that on a c-plain
thanks for this !
How much did this cost please?
It's my rough understanding subwoofers won't exceed 200 Hz. Does this test prove you can much more with a tone generator than what the sub is intended to produce?
These patterns seem to repeat in nature alot. It's intersting to see :) and yes very beautiful
True! It's all thanks to the predictable way waves do their thing. If you were to fill a square fish tank with water and wiggle your finger up and down in the middle, the waves there would produce a very similar pattern. Waves are waves, and as it turns out, waves are in everything we experience with our senses.
It IS Nature🙏
Hey gys cool video. i'm making a art project where i want to make patterns with plate with frequencies over 20kHz. My question is would this be possible?
What’s the purpose of the end cap and is it necessary? Also does the Lexan sheet affect act as a barrier from the audio reaching the audio, ie would the plate be more affected by the audio if the lexan weren’t there?
Hi MalikGamaliel, I was wondering the same about the end cap, have you made one to find out? I am making a uni project so any advice would be great please! :)
It would be nice to actually see how to connect speaker to amp and laptop (or tone generator).
Now I could do the same thing with a regular speaker ?? To see how my chords sound from my computer music making software ?
Yup! You could, but in practice, it won't look as cool. The patterns only show up when the plate vibrates at the specific frequencies that display standing waves. So for most music played through them, it'll just make the powder bounce with no discernible pattern. I do know that instrument makers use this to test out the vibrational qualities of violins and guitars to test of imperfections. It'd be cool to see how music looks through one of these though!
Perfect
HELP hi! if someone see my comments, can I use a Plexiglass 5mm intread of a lexan sheet ? tks
Thanks 👍
Has anyone see the flowing water one??? Its insain. Literally defying gravity.
Awesome tutorial, thanks a lot. I'm looking to duplicate this project, would it be possible for you to provide the specs on the amp & driver you used? It seems you found inexpensive, but still very effective equipment. Thanks
The amplifier is a PyleHome PHA15. The speaker is a PylePro - PPA8. Go to pyleaudio.com to get the specs. Unfortunately, the PHA15 appears to be discontinued I'm having difficulty finding an equivalent replacement.
Yo I want this too, any success Matthew?
This is a 2D representation it would be interesting to see in 3D!
I wish you would specify
I almost expected to see Experimentboy here since he played with that on the last Paris Maker Faire
Cool :) Thumbs up :)
Alex
Since I don’t want to ruin a good speaker, I could probably make a lighter weight one of these with some black paper-backed foam board cut into a square. That stuff rings slightly when tapped, and is so lightweight and strong that people have literally made model airplanes with it. I’m sure even a cheap speaker would get that resonating pretty good.
That hair though! I had a killer Mohawk in high school.
Great job.
I’m trying to duplicate your project for school lessons purpose.
Can you please provide me information about plate thickness, function frequency range and loudspeaker specs.
Thanks a lot.
Hi mate, just wondering what the need for the plastic is between the speaker and the metal plate? Would this work without the plastic and if not can you please explain why? Cheers.
I'm looking in comments for the same explanation. Only thing I can think of is to dampen the sound or air coming from the woofer so it doesn't interfere with sand patterns
1:59
Do one using Ferrofluid on copper plate
Can I make the plate from an iron plate??
You can use any plate that is likely to resonate. You can tell if it will resonate by tapping it and see if it rings. If instead it just makes a "thud" sound, probably not so effective for this purpose.
Nice
What's the purpose of the lexan?
It doesn't have to be lexan. It just serves as a guide for the bolt so that the rod doesn't waste energy by wiggling at any other angle than perfectly straight up and down.
Please answer ASAP thx dudes
I'd like to see a round plate!
what are the tools for making that?????????????????
Tools: hacksaw, wood saw, power drill (with 5/16 in. drill bit), straight-cut aviation snips (up to 16 AWG), hot glue gun, wire strippers/crimpers, and two 5/16 in. open-end/closed-end socket wrenches. In another post, I listed the parts needed.
What can be the minimum cost to build this
About $125: Assuming you own or can borrow the tools and you purchase all parts as new and you don't need to have them shipped. With shipping, it might cost an additional $20-$50. I just posted a list of parts I think are used.
What Gauge of sheet metal should I use?
Don't really think it matters - thin but not too thin. Paper this is too thin.
The thickness (or rather, stiffness) of the plate is part of what determines the resonant frequencies, which determines the patterns.
I'm guessing at least 1mm thick .039"
This MAKE: project (makezine.com/projects/chladni-plate/) indicates you should use sheet metal that's between 22 to 24 gauge.
You can use any plate that is likely to resonate. You can tell if it will resonate by tapping it and see if it rings. If instead it just makes a "thud" sound, probably not so effective for this purpose.
Instead of lexan sheet can we use Acrylic Transparent Sheet???Im not able to get it.
I've seen others use acrylic. I'm not an expert but this is the first one I've seen made with lexan :)
Yes. You can make it with acrylic instead of Lexan. You could actually substitute plywood for that piece and it would work.
Can you make a video of frequencies below 150Hz...
Is it just me or are the Part names missing?
Look for the post I just added. I listed all of parts that I believe they used to make this project.
Все отлично что Вы провитесь.
Who built your hair? :^D
Wow like and subscribe!!!
oooo cymatics
You should have soldered the rod to the bottom of the plate with some flux, that way it would have been perfectly flat on top
+Yextus doing this would also prevent you from changing out plates with different resonance...
Good idea, but if you want to experiment with other Chlandi plates of different sizes and shapes, it helps to be able to have them screw mounted.
Wouldn't the heat warp the plate
Crude built.
what happens when u use cymatics with the blood of your enemies
hot plate
My plate spells out words of very evil things.
LMAO
I have a piano
Dont know if it's just me or the only really interesting videos on "make" are when jimmy diresta videos are in,no offense
+Joseph Van Moustach And ClickSpring! :D
+Jordan O'C (Xenro66) quite right... wish he would finish the clock!!
i shttered my cladme plate
Brill ta
Toa 2 minuten proef
whats up with that hair tho lmao
Obviously it's a standing wave!
incorrect
the sounds are creating each shape and each shape appears at the same frequencies you chose to play.
this is ancient wisdom you can see on Mesopotamian and togo art.
:)
I hear you talking but all I can think is: fix your hair, fix your hair...
The frequency of this channel hit a resonance in the hair. You'll need to tune to a different frequency to get it to stop resonating.
no show all talk had to leave
Mones from porn
We are doing a project similar to this setup please can you send me your email id, to ask for some of my details.