Title:
AUDIO SIGNAL PROCESSING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/065741
Kind Code:
A2
Abstract:
Disclosed is an audio signal processing method comprising the steps of: receiving an audio signal containing current frame data; generating a first temporary output signal for the current frame when an error occurs in the current frame data, by carrying out frame error concealment with respect to the current frame data a random codebook; generating a parameter by carrying out one or more of short-term prediction, long-term prediction and a fixed codebook search based on the first temporary output signal; and memory updating the parameter for the next frame; wherein the parameter comprises one or more of pitch gain, pitch delay, fixed codebook gain and a fixed codebook.
Inventors:
JEON, Hye Jeong (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-dong, Seocho-gu, Seoul 137-724, 137-724, KR)
전혜정 (서울 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
KIM, Dae Hwan (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-dong, Seocho-gu, Seoul 120-749, 120-749, KR)
김대환 (서울 서초구 우면동 16번지 엘지전자 특허센터, 120-749 Seoul, 120-749, KR)
KANG, Hong Goo (School of Electrical and Electronic Engineering, Yonsei University134 Sinchon-dong, Seodaemun-gu, Seoul 137-724, 137-724, KR)
강홍구 (서울 서대문구 신촌동 134 연세대학교 전기전자공학과, 137-724 Seoul, 137-724, KR)
전혜정 (서울 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
KIM, Dae Hwan (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-dong, Seocho-gu, Seoul 120-749, 120-749, KR)
김대환 (서울 서초구 우면동 16번지 엘지전자 특허센터, 120-749 Seoul, 120-749, KR)
KANG, Hong Goo (School of Electrical and Electronic Engineering, Yonsei University134 Sinchon-dong, Seodaemun-gu, Seoul 137-724, 137-724, KR)
강홍구 (서울 서대문구 신촌동 134 연세대학교 전기전자공학과, 137-724 Seoul, 137-724, KR)
Application Number:
KR2010/008336
Publication Date:
June 03, 2011
Filing Date:
November 24, 2010
Export Citation:
Assignee:
LG ELECTRONICS INC. (20 Yeouido-dong, Yeongdeungpo-gu, Seoul 150-721, 150-721, KR)
엘지전자 주식회사 (서울 영등포구 여의도동 20, 150-721 Seoul, 150-721, KR)
INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY (Yonsei University, 134 Sinchon-dong Seodaemun-gu, Seoul 120-749, 120-749, KR)
연세대학교 산학협력단 (서울 서대문구 신촌동 134 연세대학교, 120-749 Seoul, 120-749, KR)
JEON, Hye Jeong (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-dong, Seocho-gu, Seoul 137-724, 137-724, KR)
전혜정 (서울 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
KIM, Dae Hwan (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-dong, Seocho-gu, Seoul 120-749, 120-749, KR)
김대환 (서울 서초구 우면동 16번지 엘지전자 특허센터, 120-749 Seoul, 120-749, KR)
엘지전자 주식회사 (서울 영등포구 여의도동 20, 150-721 Seoul, 150-721, KR)
INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY (Yonsei University, 134 Sinchon-dong Seodaemun-gu, Seoul 120-749, 120-749, KR)
연세대학교 산학협력단 (서울 서대문구 신촌동 134 연세대학교, 120-749 Seoul, 120-749, KR)
JEON, Hye Jeong (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-dong, Seocho-gu, Seoul 137-724, 137-724, KR)
전혜정 (서울 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
KIM, Dae Hwan (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-dong, Seocho-gu, Seoul 120-749, 120-749, KR)
김대환 (서울 서초구 우면동 16번지 엘지전자 특허센터, 120-749 Seoul, 120-749, KR)
International Classes:
G10L19/00; G11B20/10
Attorney, Agent or Firm:
KIM, Yong In et al. (KBK&Associates, 7th Floor Hyundae Building,175-9 Jamsil-dong, Songpa-ku, Seoul 138-861, 138-861, KR)
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