How do speakers work? Incredibly small, yet impressively loud

Speakers weigh less than a dime but can be heard throughout a massive room. How do they make such intricate sounds while being so small? This fundamental lesson gets into the components of a smartphone's speaker as well as their function.
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Made by: Teddy Tablante
Table of Contents:
00:14 Section 1: Intro & Component Exploded Diagram
01:40 Section 2: Diaphragm
02:20 Section 3: Voice Coil
02:38 Section 4: Magnet
03:43 Section 5: Spider
04:25 Section 6: Summary
Visit our website: www.branch.education
Notes:
This is the second episode of Branch Education. Please provide comments, questions, and your thoughts.
Erratum:
None
Animation built using Blender 2.79b www.blender.org/
Post with Adobe Premiere Pro and Adobe After Effects
Sound editing with Reaper
Work Cited:
Wikipedia contributors. "Loudspeaker." , "Sound." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, June 20th, 2018
Music Attribution in Order:
Marxist Arrow by Twin Musicom is licensed under a Creative Commons Attribution License www.youtube.com/watch?v=rBlLC...
Plaidness by Francis Preve
• Plaidness - Francis Pr...
Timelapsed Tides, Asher Fulero
www.youtube.com/watch?v=1LipR...
Sunburst, Tobu & Itro is licensed under Creative Commons Attribution License www.7obu.com www.youtube.com/watch?v=4lXBH...
#HowDo #Speaker #Smartphone

[@gibbethoskins8621]

What amazes me is how people figured out which amount of current produces which sound... The fact that that little piece of material moving back and forth can create such intricate sounds is mind blowing

[@vandermonke4178]

woah i was literally wondering on what factor did the current changing depend on as i was watching this. truly fascinating

[@rylanthompson5844]

Analog technology, physics does there figuring out.

[@DoomFinger511]

They didn't have to. A microphone is the exact opposite of a speaker. It has a thin metal plate that vibrates when sound hits it. That plate then moves an electromagnetic field to make pulses of electrical current. The current is sent to a speaker (which as the video showed) vibrates at the same frequency producing sound. The only difference is the speaker is electrically amplified to make the sound loud enough to hear.

[@Leanzazzy]

Exactly. It also sounds far less marvellous when you realise that sound is literally just a longitudinal wave made by an object vibrating.
Electromagnetic induction had also been known for quite a while, so it was only a matter of time before someone linked them together.

[@bluelotus.society]

It truly seems unreal!

[@workhardt2]

Very impressive. the phone speakers are so small yet quite clear.
Human engineering just amazes me.

[@spicytaco5975]

Which other species performs engineering lol??

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So what planet are you from ?

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Thank you so much!

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Beautifuly animated,
Clearly explained,
Nicely delivered.
I just subed..

[@BranchEducation]

Thanks a ton!

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Congratulations to the creators.

[@RJ47_AeroMechEngg]

Came here from LE
i am amazed to see , this Detailed explained video
thank you for amazing quality informative video

[@BranchEducation]

Thanks!

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Great video, I've wondered how speakers worked since I was a kid and this is one of the best explanations I've seen! Proud to have been one of the first 1000 subscribers, excited to see what's in the future for this channel

[@BranchEducation]

Thank you! That's a nice compliment!

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thanks man for such a amazing knowledge

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Amazing! Great animation and explanations, its clear and very understandable.

[@loveworksnoevil]

Always wondered how this exactly worked, always got a vague explanation now i know im detail exactly how it works. Thanks

[@Cyberbully34]

I've always wondered how speakers worked. You are an absolute legend!

[@brunosousa6642]

The level of details is just incredible!

Thank you very much, keep on track!

[@SathishKumar-xk6cc]

Dude sorry
Bro.....
Ive locked in riddle to understand how the sound is generated in Speakers
For almost 5 years today I've got it
Through your teaching
.
.
Am heartily thanking you for your generous work of sharing and teaching

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Amazing video, i just have one thing to say, this type of informative animations has its own audience who are really looking to dive into the details and the backbone science supporting it, so take your time to make it even longer because we love it, thanks great effort!

[@BranchEducation]

Thanks for the input! Most of my videos are clocking in at 10 min. This speaker one just happened to be a bit shorter.

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So neatly explained !!!!

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I am so amazed by the details this channel provide alongside the animations that I'm bunge watching the vids

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wow, explanations are really good to want to keep going on.

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A very informative video.
I hope many content creators will follow this path and show the marvels of everyday objects and gadgets around us.

[@Jorvanius]

I am very excited learning this. Thank you very much :)

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Amazing explanation....thank you 😊

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I press like even before watching the video, because of your detailed description and attribution.

[@TheSar]

Subscribed! Fantastic quality!

[@astronaut6418]

Here's a question: How does a speaker generate 2 sound simultaneously

[@BranchEducation]

You should check out the followup video that goes into what is sound? : th-cam.com/video/24yESm63tSY/w-d-xo.html

[@marios9992]

It is one sound. Two sounds fused together in one.

[@dusscode]

Radu Burcea with multiple audio channels, like stereo. Some smartphones use the earpiece speaker with the loudspeaker to make two sounds at once, which is stereo.

[@osiandelzongle6738]

@@dusscode YOU ARE WRONG. PHONE SPEAKERS ARE ALWAYS AND ONLY IN MONO. Have a nice day!

[@anonnona6940]

The frequencies must be combining to come out together as a combined wave(two frequencies can merge in interesting ways) , both having low amplitude or "volume" per say, individually.

[@atharvavankundre4942]

Great work. Very well explained

[@RyanMayer]

Is this the best channel on TH-cam!? VERY happy I stumbled across this channel. Thank you!

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this channel is a gold mine.

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*Magnetic Field Looks Satisfying.*
*Thanks a lot.*

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What underrated simplicity of technology. Great video.

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wow! dude that animation that voice, that explanation, Just where have you been all these years?

[@allezvenga7617]

Thanks for your sharing!

[@hammadkhan4876]

Your voice is also coming from the speakers of my phone

[@yashikasinghal1345]

So what is the miracle?

[@omsingharjit]

Same question 🤔

[@HDestroyer787]

Speakerception

[@djhpofficial934]

Tws

[@melkify7493]

@@yashikasinghal1345 same question

[@manikandanj1233]

Brilliant piece of work... Very very well explained.. Hats off to your effort... All the best for your future videos :)

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Fab information, thanks! Excellent content 👍🏻

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Thank you so much..much needed explanation

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Great breakdown thanks

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your 3D presentation really amazed me, keep it up!

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Thanks!! Glad you liked it.

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Amazing video, excellent explanation. Well done

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Again.. you did a great job 👍👍👍❤❤

[@souvikmajumdar3183]

Mesmirizing.Excellent Designing.Please provide more about the Smartphone parts in details like this.It is really informative.

[@davidani1997]

Amazing video, thank you

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Lovely info. Thanks

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great concept

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Thanks!! Glad you liked it.

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thanks for this

[@BranchEducation]

No problem!

[@Askejm]

1:50
Rip TH-cam compression

[@BranchEducation]

Really. Learned my lesson to not do full-screen particle simulations.

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Branch Education it was a sick simulation though 👍🏻👍🏻👍🏻

[@GhostPants0.2]

Hey l really like your videos they’re very informative and you’re doing a great job and I wonder if you could make a series about the parts of the laptop and how they work , thank you, great channel

[@BranchEducation]

Thank you! Eventually, there will be videos about the laptops, but first I have to finish the main components of the smartphone as well as supporting videos of how those components work.

[@chowa3686]

Thanks for sharing 🙏🙏🙏🙏

[@dladelle]

Learning a lot from this series. Great job on the exploded views.

[@danielg2]

Good niche on the micro speakers, great animations, I understood your explanations thanks.

[@ghost0604]

Great content. Subbed.

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Your videos are excellent !

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Very excellent education.

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[@nvrt7209]

I always wondered how speakers worked since I was young. It always blew my mind how our phones can transfer exactly what our voices sound like. Like what tiny instrument inside this small phone can possibly mimic my voice so perfectly? Thankyou for these videos.

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Awesome... simply awesome.

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Thanks!!

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Very nice explanation Sir..

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Nice work
Plz make a video how small connectors, smd and components work and how they are made

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Amazingly explained
Plz sir next video on led and oled plz plz sir

[@BranchEducation]

The touchscreen episode gets into some of the OLED, an upcoming ep I'm working on will go into detail of how one LED works.

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Glad you liked it!

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Sir, please keep more videos...

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[@BranchEducation]

Thanks for your nice words! I hope this inspires others to build similar engaging explanations.

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Branch Education I hope too

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1:15 I didn't see the spider until he labeled it.. It was an awesome video...

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