公开(公告)号：US09767808B2

公开(公告)日：2017-09-19

申请号：US13951946

申请日：2013-07-26

Applicant: Samsung Electronics Co. Ltd.

Inventor： Yong-Won Shin ,  Joon-Sang Ryu ,  Jung-In Kim

IPC: G10L21/00 ,  G10L19/005 ,  G10L19/22 ,  H04L1/00

CPC classification number: G10L19/005 ,  G10L19/22 ,  H04L1/0036 ,  H04L1/0061 ,  H04L1/0082

Abstract: A method and apparatus for suppressing vocoder noise are provided. In the method, first information and second information are received from a channel decoder, the first information indicating whether a decoded data frame has an error and the second information being a channel quality metric, error concealment voice decoding is performed on the decoded data frame if the first information indicates that no channel decoding error has been generated and the second information is smaller than a predetermined first threshold, and normal voice decoding is performed on the decoded data frame if the first information indicates that no channel decoding error has been generated and the second information is equal to or larger than the first threshold.

公开(公告)号：US09654077B2

公开(公告)日：2017-05-16

申请号：US14695815

申请日：2015-04-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jung-In Kim ,  Yong-Won Shin ,  Tae-Kyun Jung

IPC: H04B15/00 ,  H03G3/34 ,  G10L21/0216

CPC classification number: H03G3/348 ,  G10L21/0216

Abstract: A method and an apparatus for reducing noise due to a path change of an audio signal output from a device are provided. The method includes determining an input period for canceling the noise by using a time point, at which the path change is sensed, as a reference, when sensing the path change of the audio signal; low-pass filtering the audio signal in the determined input period; and interpolating a first partial signal, which is the low-pass filtered audio signal in a first predetermined period that starts from a start time point of the determined input period, and a second partial signal, which is the low-pass filtered audio signal in a second predetermined period that ends at an end time point of the determined input period, within the determined input period.