There’s a lot of interesting detail in this video. For one: I always thought noise cancelation was mathematically perfect, but some sounds are harder to cancel than others.

And the point about foam being a better solution for sealing off noise than the tips Apple created. Not sure I buy that Apple over-engineered their solution when cheap foam would have been better. I’m interested in an audio engineers take on this.

Take a look, well presented.

[H/T Loek van der Helm]