公开(公告)号：US10037765B2

公开(公告)日：2018-07-31

申请号：US14509447

申请日：2014-10-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： A-ran Cha ,  Gun-woo Lee ,  Sang-chul Ko ,  Young-sang Lee ,  Yoon-jae Lee

IPC: G10L21/02 ,  G10L21/0208 ,  H04R1/28 ,  H04R15/00 ,  H04R9/06 ,  G01R33/28 ,  G10L19/005 ,  G10L21/0232 ,  G10K11/178

CPC classification number: G10L21/0208 ,  G01R33/283 ,  G10K11/178 ,  G10K2210/1081 ,  G10L19/005 ,  G10L21/0232 ,  G10L2021/02085 ,  H04R1/288 ,  H04R9/06 ,  H04R15/00

Abstract: An audio apparatus is provided. The audio apparatus includes an input configured to receive an audio signal containing noise; a period estimation unit configured to estimate a period of a noise pattern in the audio signal; a noise reducer configured to subtract and remove the noise pattern from the audio signal in a frequency domain by using the estimated period of the noise pattern; a noise updater configured to update the noise pattern according to a change in amplitude of the noise; and an output configured to output the audio signal obtained by removing the noise pattern.