3 ms·
Apple says they adjust the active noise cancellation 200 times a second. We can't tell exactly what that means just from reading it, but it could very well mea
by jmull 7y ago
Apple says they adjust the active noise cancellation 200 times a second.
We can't tell exactly what that means just from reading it, but it could very well mean that while the filter is updated 200 times a second, it isn't limited to filtering 200 Hz sound.
I'd be rather surprised if it was.
- willis936 7y agoThere are very few parameters that make sense to update 200 times a second if not the actual voltage level to subtract. If you adjusted EQ parameters 200 times a second you'd just be injecting a ton of noise in the center of the audible band due to phase jumps. Edit: There is reason to believe it is just 200 Hz ANC. It's the same wording used in Beats over ear headphones that have a W1 chip and ANC. Those headphones have abysmal ANC that doesn't do anything above 500 Hz (aside from adding in some noise). https://www.engadget.com/2019/10/28/apple-airpods-pro-announced-active-noise-cancellation https://www.engadget.com/2019/10/28/apple-airpods-pro-announ... https://www.engadget.com/2019/10/15/beats-solo-pro-headphones-announced-hands-on/ https://www.engadget.com/2019/10/15/beats-solo-pro-headphone... https://www.rtings.com/headphones/reviews/beats/studio-wireless https://www.rtings.com/headphones/reviews/beats/studio-wirel...