How is the destructive interference used in noise reduction briefly explain ?

Destructive interference is used in noise reduction by combining sound waves in such a way that they cancel each other out. This is achieved by creating a second sound wave that is out of phase with the original noise, causing the peaks and troughs of the waves to align and cancel each other out. This results in a reduction of the overall sound level, effectively reducing noise. This technique is commonly used in noise-cancelling headphones and other noise reduction technologies.