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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:...
In <xref ref-type="bibr" rid="ref1">[1]</xref>, <xref rid="fig5" ref-type="fig">Fig. 5(b)</xref> has an error [see the old <xref rid="fig5" ref-type="fig">Fig. 5(b)</xref>]. The new <xref rid="fig5" ref-type="fig">Fig. 5(b)</xref> is shown here. The following is the detailed...
We have designed, fabricated, and tested a low-power broad-bandwidth noise cancellation VLSI circuit for in-ear headphones. The proposed design can attenuate 15 dB for broadband pink noise between 50–1500 Hz when operated at 20 MHz clock frequency at the costs of 84.2 k gates and power consumption of 6.59 mW only. Compared with the existing designs, the proposed work achieves higher noise cancellation...
Conventional active noise cancelling (ANC) headphones perform well in reducing the low-frequency noise and isolate high-frequency noise by earmuffs passively. These systems often use high-speed digital signal processors (DSPs) to cancel out the disturbing noise at such low frequencies, which result in a high-power dissipation for a commercial ANC headphone. This paper proposes a high-performance feedforward...
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