The Engineering Inside Wireless Earbuds || How do Wireless Earbuds and Audio Codecs Work?
Let's take apart these wireless earbuds [Apple AirPods 2] and see all the components. Then we'll explore audio codecs and the world of digital audio, and see how it all works.
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This video explores the inner workings of wireless earbuds and specifically, we'll explore these Apple AirPods 2. We'll give you a general overview of how these earbuds work, and then dive into how Audio is represented digitally. We'll dive even deeper into Audio sampling rates, and audio bit depth. Finally, we'll give a brief overview of audio file formats.
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Modeling, Animation- Victor Duarte (@victorvdr9) Digital Artist. www.victorvdr9.artstation.com
Script, Editing- Teddy Tablante
Twitter: @teddytablante
Voice Over- Phil Lee
Table of Contents:
00:00 - Exploring Wireless Earbuds
02:18 - All the Components inside Apple AirPods 2
04:41 - How Wireless Earbuds Work
06:14 - What are Codecs?
08:47 - Sampling Frequency & Bit depth
15:21 - Audio File Formats .mp3 .flac
16:46 - Wrap Up!
Key Branches from this video are: Speakers, How does sound work?, How does sound travel?
Erratum:
Animation built using Blender 2.90.1 www.blender.org/
Post with Adobe Premiere Pro
Internet References:
Audio Codecs and Audio Data Converter Ics www.maximintegrated.com/en/products/analog/audio/audio-codecs-and-audio-data-converter-ics.html
Audio File Size Calculator
toolstud.io/video/audiosize.php?samplerate=44100&sampledepth=24&channelcount=2&timeduration=60&timeunit=seconds
Dempsey, Joe. "How do MP3 and WAV Files differ?" Studio . www.dawsons.co.uk/blog/how-do-mp3-and-wav-files-differ
Wikipedia contributors. "Analog Signal". "Audio Bit Depth". "Audio Coding Format". "Bit Rate". "Codec". "Compact Disc Digital Audio". "Digital Audio". "MP3". "Nyquist-Shannon Sampling Theorem". "Pulse-Code Modulation". "Sampling Rate". "Sampling (Signal processing)". Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, Visited November, 2020
#Wireless #Earbuds #AirPods
*If you could choose the next three videos we make, what would they be?* Also, let us know what you think of the video!! It's useful to hear what your favorite part is, or if a section is too complicated, or whether you would like to learn more about a particular topic.
How ALU or big chip or microprocessor work ..........plz make video on those topic......you makes my Engineering syllabus easier 😛
I want more on file formats.. Compression/decompression
How Bluetooth communication works
Regular core vs AI core
Can you make a video on some of the inter workings of a processor? Would be cool to branch into the workings of a graphics card and what makes them different (I’m actually really curious because I don’t know) then you could show how asm instructions make them work I guess. This is a big series I would assume, but hope you think it’s a valuable idea to improve on! Thanks for these free videos!!!
Your work is amazing and ur info is so rich. please keep it up
For real man✊✨
This is incredible! Can't believe watching this costless
Right?!?!? Such a good job, I love the narrator's voice, the original narrator is the animator and the researcher who does the best animation job I've ever seen in the field of educational engineering!!!
I agree
Rare in youtube nowadays
Wellllll KZhead keeps track of your info to sell to advertisers, so not exactly costless
Incredible... Hope he continues it forever
Man, the amount of research and hard work that went into designing these airpods is just unthinkable. As always, detailed and clear explanation of each concept.
Yeah I'm shocked
Well the technology was here before the earbuds, they "just" miniaturized all the stuff and put it in a nice little package that can fit into a human ear. And I love the way they did it.
To my ears these 3rd Gen Air pods are more comfortable compared to the newer Pro version with the soft gel tips. kzhead.infoUgkxgl8SzyQoymMu-S3V55Dskg5QJ8xr1yCR That said, compared to the 3rd Gen, I notice these do not stay planted in the ear as well. One design issue I think, is you squeeze the stem and click it twice to advance your songs. On 3rd gen you tap the large speaker. The difference is by grabbing the stem each time, you tend to loosen the bud fit in your ear. Not always, but the bud falls out a few times while running. The old tap to change never had that problem for me. I would not have changed that tap function. That said, the newer Pro version sticks in the ear, almost airtight if you want that. I do not like that Airtight fit. So that's why I'd stay with this version as the best trade off of comfort, use, and overall feel.
The production quality of these videos is srsly friggin unreal!
"unreal" 4
Apple wishes they made headphones as good as this guy's videos.... It's almost painful, really. It's like finding the single best commercial jingle you've ever heard, then learning it was for DDT or Love Canal realestate.
For god's sake, just NEVER stop doing this. You're really helping a lot of students understand complex topics in a very interesting manner.
why the most people in India have 'kumar' surname it means gambling in Turkish
@@0xblack666 'Kumar' is derived from Sanskrit. It means boy/son/prince. It is a generic surname which can be used by anyone. Some people use it as their first name or middle name also. It's feminine equivalent is 'Kumari'
The more you know
I’m quite confident kumar is the Indian pronunciation of the Arabic Qmr meaning moon, it was often used as an allegory for beauty, funny enough the same for Turkish Qimar which is also from the Arabic word for gambling.
Aur bhai kya haal 😈
This is really interesting. I’m a tech enthusiast and I never thought I’d find a channel that breaks down tech principles so well like this channel does. Thanks for the video and for sharing your knowledge/these facts.
The fact that all of this is free is incredible. The visuals are astounding, the explanations are to the point and are very informative. This is way better than any videos similar to this I have ever come across.
The world needs more of these videos. Thank you Branch Education!!
😊❤️
1:06 I for one would LOVE to see that feature length movie!!!
Same here brother ❤️
Yes
@@chiradipbhattacharya5461 lol
I've been dying to find a comprehensive video on this exact topic and I have finally found it. Now I start understanding all the terms like bit rate, bit depth and other technical terms that no one explains but yet expect you to understand. I really thank you for that
I just encountered this channel and I'm already obsessed; as an electrical engineering student this video helped me to break down topics into small details that even lectors don't bother to explain, so thanks a lot for this kind of knowledge and work!
branch education : thank you me : No , thank you
As a person with an engineering degree in electronics and communication, a job in consumer electronics, and a deep passion for technology, the contents of this channel are absolutely priceless. Everything from the presentation, animation, content, are so professionally done. The best thing is that all examples of modern-day devices are used instead of archaic examples. That makes the videos all the more relatable and engaging. Looking forward to consuming more such amazing content from the team!
Np
I'm six minutes in, and they're doing a pretty good job ...
Yes, indeed. I agree. I also flipped them a donation (tip).. to help with future videos. Those ear pods, don't pay for themselves (haha). Yes, keep smiling abd God bless. - Richie. Western Australia.
@@riccardo760 they deserve it 👍
Props to Victor Duarte for the 3D renderings and animations in this video. From his bio I can see he has a background in mechanical engineering and I think it shows on his work. Everything is so detailed and meticulously modeled. The topic is also very well scripted and researched as far as I can tell from my sound engineering past. The clear and well paced narration brings everything together and makes it easier to understand this 17 minute video which is heavily loaded with information. Congratulations to everyone who works on this channel!
I liked everything in this video...graphics, narration, explanations of complex terms in very simple way.... Pls don't stop making these videos🙏🏻🙏🏻 Thank you much for this effort ❤
Information flow, graphics, voiceover everything is pin perfect.
The graphics are amazing, congratulations. I'm studying Computer engineering
Oh cool, would you say it's hard? I want to go into Management Information Systems so I think it'd be cool to know how to assemble a PCB but I'm a little fearful of coding cause it's alot of memorization and I'm not good at remembering things that don't have an explanation behind them
@@alexosow there is always explanation behind every code...and most people who have extra aptitude mindset dont memorize things ...computer engineer are among one of those
@@akaabhinavraj Well the thing that trips me up with code is how it's achieved. Like say syskey meant system key. How come it's not systkey or just systemkey
@@alexosow make it shorter?
@@alexosow make it shorter?
Hands-down, it's the best video out there! Thank you for explaining it so clearly. Loved the content, graphics, explanation.
Literally, one of the the best smooth and in-depth explanation channel in KZhead!
What is the use of the accelerometer in AirPods? wonderful content ✌✨ Cheers
I was wondering the same thing. Looking at the product pages for similar devices it appears to be for "wake on use": pick up the earbuds and they start working. No acceleration = low power mode to save battery between uses.
Oh I was wondering that also, I know the optical sensor is so it can tell if you have the AirPods in your ear, but an accelerometer doesn't seem like it would do anything since that's just to determine how it's moving
The accelerometer is for sensing on you tapping on the earbud. It's to accept a call, or if you want to act like a secret service agent, or a number of other functions.
So cool
On airpod pro it is also used for spatial audio.
this is the most incredible animation and explanation that I never seen.
Yes
What a nice surprise. You included so much more information.Thank you very much for putting together an informative video. I really liked that you went more in depth about explaining not only about how earbuds work but how the sounds are converted and as well as how analog waves work along with the human ear intake of sound. Absolutely amazing. Keep up the good work. Thank you.
The video presentation is so vivid and detailed. Thank you for the content, you're helping a lot of aspiring engineers.
This method of teaching should be implemented in schools and colleges so every student will become skilled and inventions will increase
If only, but getting professors to make awesome 3D graphics like this would either be impossible or the one that does would insist on charging other professors or institutions to use it. But at least some professors will just use this channel's videos in class rather than lecturing for hours, and that's why KZhead is amazing.
@@MrMattumbo then don’t give them wages. If I do my work poorly I simply don’t get paid, but why they?
Yes, I agree with you. Colleges and schools should do more application based study to help better understand the concepts.
Agreed
Yeah and imagine with AI assisted free education what society could be! *sigh* stupid capitalism tho 😭
Oh my god I can't believe I'm watching this for free! I can't even imagine the amount of work you guys do to just give us knowledge! Hats off!!!
The visualization is really great! Taking apart the components really helped me understand how these things work. keep up the good work!
Speaker, SoC, and Bluetooth! Your breaking things down in a very understandable manner. Thank you for your hard work, I’ll try to watch em all!
"Always remember to consider the conceptual simplicity yet structural complexity in the world around you" 🌍👌
This channel is unique because it explains everything in terms of first principles!
Dude the way you visually represent these concepts and processes makes it so I can really understand what's going on, I was struggling with how DAC and ADC actually works until now. No amount of reading wiki pages or forums can replace this, god speed you're a real king. If you keep making stuff like this I'll stay subbed until I die, going to show all of my friends and family your wonderful channel.
Yeah, that's good S* Mate! I wholeheartedly agree. I'm ALSO, the dude, who tried working this 'thing' out.. reading articles n stuff. It compliments excellently to my other scourced info but more importantly DISTILLS this information into a WAY that I, then, can teach others about it, or simply refer this video link etc. Iron sharpens iron, bro. Keep up the good work man. All the best. And... Keep smiling! - Richie Western Australia.
This is one of my favorite yt channel. Everything is done to perfection, animation, explanation, voice , sounds, visuals. I bet the narrator is a great teacher!
i almost feel like i have to pay to see this videos, this is insane quality
I swearrrr ita soooo darn gooodd
These videos are incredible! I love the animations and how easily everything is explained even though you dive really deep into the topic!
The entire compilation of your videos are extremely thorough and easily digestible. Carry on!
I can imagine the time spent to create these 3d graphics with animation. Enormous! I hope to see more of these. It really helps me learn new information as a Technical IT guy.
The voice is like I'm getting some spiritual enlightenment...
Hahaha
that is true brother Anup Maji
Thank you so much for such a wonderful and premium content. The graphics, explanation and engineering all are mind blowing
This is so very interesting thank you. Engineering student here, this is the perfect mix of basic principle explanation and further details. It help me understand what we're really doing with these techniques much more than reading a equation. (Yet the equation is very needed once I've understood the principle)
Can't believe I'm watching content like these on youtube for free! Way to go Branch Education! The world needs more instructors like you guys.
Thank you KZhead for recommending me this!
The animation quality is amazing and super helpful. I can't imagine how much work it must take to make one of these videos.
The animation and explanations are absolutely perfect💯
Great explanation, 17min goes by like a breeze. Noice.
I love how this video effectively summarizes weeks of engineering lecture on DSP in a few minutes. Not in-depth ofc, but a good enough general overview.
Subscribed and rang the bell! I am in awe at how amazing this video was. Was not expecting to learn how audio waves worked but I’m glad I did. The way you explained everything was just perfect and the visuals helped a lot. You went above and beyond with the visuals, your voice was nostalgic (took me back to learning things by video presentation in highschool), and the fact that you didn’t try to cram it all in one video allowing you to be as clear and concise with your information as possible really was the cherry on top. It’s like you said , sometimes the movies try to fit everything in but the best approach is to tackle everything separately. I honestly wanna cry because I feel like you ignited a flame that I didn’t know I’d wanna keep lit. I may be moving too fast here but I’m just gonna say it, I love you. 😂 Amazing work! Looking forward to watching all your videos.
I feel bad for this man, he puts so much work in these beautifull animations and he doesnt get the atention he deservs.
He’s getting plenty of attention, what? He needs attention from the Illuminati?
Sir , you are doing wonderful job , I want to thank you for providing these kinds of informative videos with high graphic quality, your contents are priceless , I still can't believe that I'm watching this video without paying any price.. thank you so much sir we're Grateful to you 🤗🤗🤗
This video is just perfect. I’ve been sharing it with anyone who mildly takes interest in these things. So much great work in all aspects, video, writing, 3D rendering, clarity of scientific thinking. Excellent work.
The visuals and the explanation is really great ,I hope you guys won't stop uploading!☺️
Actually due to this corona situation I can't able to understand my 2nd year subject which is communication engineering but in this video you guys almost breakdown everything that I learned over by the online class like watch through the boring ppt and the mam saying the thing again but I learn it as theoretically but now I had a clear thought of how it's actually works in real world it's quite amazing to known that so pls try to make more videos like this and breakdown more engineering concept because nowadays we are not learning form College we are learning form guys like you and thankyou for this wonderful presentation
I love the 3D models and seeing an "exploded view" of the internals. I like how you chose the Apple Airpods as they are popular and probably would attract more viewers.
I would choose the Airpods Pro instead.
Airpods are also very primitive compared to other wireless designs, so it's easier to make the video and easier to follow
Amazing videos! I enjoy watching even when I know about the topic because you easily show engineering beauty. I always recommend your videos to people that want to know about tech. Thanks for the enjoyable animation and the illustrative explications.
Perfection! Long video but it flew by so consistently well. Great work
Wish they could teach me stuff like this in my college. I'm cursing them.
100 out of 10. Great value to Society, and channel should be recognised on trending.
definitely.
I was so excited that there will be more videos that will go into more detail about how wireless headphones work!
Wow! There is so much to learn and the expirations are brilliantly put together! I love it!
The quality is insane! I thoroughly enjoy watching your videos.
This is really amazing! I've never paid so much attention to something, especially nowadays with online school. If everything I learned was teached by you, I would pay attention 100% of the time and fully understand it.
I have no idea how I found your channel, but I'm glad I did. These explanations are amazing!
I can't thank enough being a engineer myself for this kind of priceless contents. I would curiously waiting for ur upcoming videos. Keep up the good work !
I absolutely love these educational videos. I could sit and watch them all day. Thank you all so much
I learnt this at uni but it was a bit difficult to imagine. This simulations help a lot. Very well explained, without expanding too much on the theory for it to become tedious. If lectures were like this and then all the theory was presented afterwards it would be way easier to understand. Thank you so much.
I sell all kind of wireless headphones but I never knew how they are made , I’m so happy I came across this video ; I love it
OMG this is mind blowing - so glad I found this. I am an studying engineering and the practical side of the engineering is not explained in lessons. So this makes is soo clear. This video is inspiring. The graphics of the video are great as well! A lot of hard work! Amazing!
This is excellent! Perfect graphics/animations and explanations. Thank you so much for making these!
What you're teaching is extremely helpful , visually great and hope to see these kind of videos regularly 😃
At this very moment, I am unable to find a suitable word to express my gratitude over all your help. Just take my warmest “Thank you” for now.🥺
I love the graphics and the calm voice. They are really helpful!
i like how the narrator sounds. His speaking rate makes it easy to listen to and understand these complex concepts... i don't need to pause or rewind to understand. The visuals are great and very informative and the video is of great quality
This is some incredible stuff. Incredibly complex systems explained so intuitively, and for free?! Thank you branch Education!
It's amazing that all that you can see are 3D models, even arrows, really helpful !
Thanks for these awesome videos! After many hours of studying these topics, your videos are the most easier to understand and visualize.
Thanks very much for taking such an effort from your side to transfer this knowledge to others. Please keep doing.
This is great, thanks a lot for sharing in this level of neatness!
I was literally just thinking about this today... LOVE THIS CHANNEL SO MUCH.
Amazing video. Great graphics, things are explained really well and also you are linking to other topics that are tangents in other videos. So nice. I wish I had these videos when I was in college.
amazing explanation and perfect animations couldn't ask for more , Thanks.
Damn. I have never subbed to a channel so fast before. You hooked me 12 seconds in with the subject, that voice and overall production value.
Incredible amount of details! So great!
This sort of video editing and explanation is real hard work. Hats-off to the creators 🙌🏻
I've been using DAWs since around age 14, and my knowledge of computer science has grown considerably since then. Despite that, I've never really made the time to research and address the finer points of The Exact Videos You Have Made. So thank you for making the visuals so appealing and providing the information in an easy-to-understand packet.
I have started respecting my Earpbuds after watching this video.
I wish you were my engineering professor
Lol
This is amazing! So we’ll explained with extraordinary graphics and voice narration! I enjoyed it thoroughly and hope many others have the similar experience!
This is brilliant , i would say this is the perfect way to teach students and clearify the most complex points of electronics engineering , good job
The quality of this content is truly amazing.
The power of great visuals in learning.
I am really speechless describing these amounts of effort that have been put to make this visually soundly and even informatically rich so you can enjoy every femtosecond of the video really thanks!!!!! keep it up
This is the best. I love it. The animations are awesome. Being a Mechanical Engineer by profession makes me appriciate Electronics more than i ever thought
Man your voice is so relaxing . This is like learning from a loving grandpa who teaches even better than your teachers .
Great!! 👍🏼👍🏼 love this channel... Demystifying n simplified learning for any topics
Wow. This was fascinating. You some how made this so simple and clear. Please continue the great work.
Best video presentation I have seen on this platform so far. It was created so well that it made me feel as if I already knew the subject.👍
Thank you for the amazing work. When I saw your mouse video, I was sure that Logitech provided the 3D models to you as a sort of a promotional arrangement, but now that I see the same quality in all of your videos it's obvious that you do this yourself and I have to say it's absolutely fantastic. Please keep it up :)
👌Graphics have improved a lot and the video was very interesting! Thankyou:-)
I'm really impressed how easy it is to understand this complex info. Thanks
I loved this video! It helped me to really understand what was being taught in my CS Computer Networks class
Amazing. Stunning visuals, wish there was even more detailed info.