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.

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.

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!

How Do Noise Canceling Headphones Work?

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.

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