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The Engineering Inside Noise-Canceling Headphones

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Channel: Branch Education
Categories: Physics   |   Science   |   Technology  
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Description

The engineering inside noise-canceling headphones is rather intricate. Let's see how.
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Noise is all around us, so how have engineers designed headphones that eliminate it? Well in this video we explore the physics of active noise-canceling headphones, and how noise can be removed from the environment using technology.


Want to support in-depth engineering and technology education? Support us on Patreon: http://www.patreon.com/brancheducation

Website: http://www.branch.education

Modeling, Animation, Script, Editing- Teddy Tablante
Twitter: @teddytablante
Voice Over- Phil Lee

Table of Contents:
00:00 - Let's See Inside Noise Cancellation
00:23 - Noise Cancellation in a Nutshell
00:53 - Turning Waves into Compressions and Rarefactions
01:16 - The Example of Removing the Noise from Traffic
02:14 - Issues with Noise Cancellation, Insulation
02:42 - The 2nd Issue: Frequency
03:49 - 3rd Issue: Adding in the music
04:27 - Parts of the Wireless Earbuds
04:44 - Sponsor: PCBWay
05:09 - Why we use the AirPods 2

Key Branches from this video are: Speakers, How does sound work?, How does sound travel?, Audio Codecs

Erratum:

Animation built using Blender 2.90.1 https://www.blender.org/
Post with Adobe Premiere Pro

Internet References:
Denenberg, Jeffrey N. Noise Cancellation: Quieting the Environment http://doctord.dyndns.org/Pubs/POTENT.htm

Triggs, Robert. Active Noise-Canceling (ANC) Technology Types Explained https://www.soundguys.com/noise-canceling-anc-explained-28344/

Wikipedia contributors. "Active Noise Cancellation" , "Compression", " Pressure Wave", "Rarefaction". Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, Visited November, 2020


#NoiseCancellation #Earbuds #AirPods

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