I read about a new algorithm for noise cancelling earphones/headphones based on time delay. The music coming through the speakers left and right are the same, no delay in signals between left and right. Outside noise is picked up from microphones outside the case of earphones/headphones. Any signals with delay between the right and left microphones are actively cancelled through the speakers to suppress them.
There were examples of the algorithm being used in real life situations, and the noise cancelling was impressive. Present noise cancelling earphones/headphones do a good job cancelling low frequency noise, but not mid and high frequencies. The new algorithm suppressed mid and high frequency noise really well.
I tried to find the article but couldn't remember where I saw it.
I have Bose headphones and Samsung Galaxy Buds 2 earphones. I wonder which company will come out with products using the new algorithm.
Some brand just launched earbuds with 12mm drivers. I would like 12mm drivers and the new algorithm. It's nice listening to music at a low volume with clear bass and high notes. Very peaceful.
Wonder when noise cancelling earphone/headphone manufacturers will start to sell out their present inventory before introducing products with the new algorithm. It could take another year or two for a product to be developed and launched.
Did you know that earbuds and headphones generate great profit margins for the manufacturer? Far greater than most other products, excluding medicine, of course.
