A Low-Power Broad-Bandwidth Noise Cancellation VLSI Circuit Design for In-Ear Headphones.

Conventional active noise cancelling (ANC) headphones often perform well in reducing the low-frequency noise and isolating the high-frequency noise by earmuffs passively. The existing ANC systems often use high-speed digital signal processors to cancel out disturbing noise, which results in high power consumption for a commercial ANC headphone. The contribution of this paper can be classified into...