Title:
METHOD AND APPARATUS FOR ENCODING A SPEECH SIGNAL
Document Type and Number:
WIPO Patent Application WO/2011/071335
Kind Code:
A2
Abstract:
According to the present invention, a linear prediction filter coefficient of a current frame is acquired from an input signal using linear prediction, a quantized spectrum candidate vector of the current frame, corresponding to the linear prediction filter coefficient of the current frame, is acquired on the basis of first best information, and the quantized spectrum candidate vector of the current frame and the quantized spectrum vector of the previous frame are interpolated. Accordingly, in contrast to conventional phased optimization techniques, optimum parameters which minimize quantization errors, can be obtained.
Inventors:
JEON, Hyejeong (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-don, Seocho-gu Seoul 137-724, 137-724, KR)
전혜정 (서울시 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
KIM, Daehwan (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-don, Seocho-gu Seoul 137-724, 137-724, KR)
김대환 (서울시 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
JEONG, Gyuhyeok (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-don, Seocho-gu Seoul 137-724, 137-724, KR)
정규혁 (서울시 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
LEE, Minki (School of Electrical and Electronic, EngineeringYonsei Univ.,13, Sinchon-dong Seodaemun-gu Seoul 120-749, 120-749, KR)
전혜정 (서울시 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
KIM, Daehwan (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-don, Seocho-gu Seoul 137-724, 137-724, KR)
김대환 (서울시 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
JEONG, Gyuhyeok (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-don, Seocho-gu Seoul 137-724, 137-724, KR)
정규혁 (서울시 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
LEE, Minki (School of Electrical and Electronic, EngineeringYonsei Univ.,13, Sinchon-dong Seodaemun-gu Seoul 120-749, 120-749, KR)
Application Number:
KR2010/008848
Publication Date:
June 16, 2011
Filing Date:
December 10, 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 Seodaemoon-gu, Seoul 120-749, 120-749, KR)
연세대학교 산학협력단 (서울시 서대문구 신천동 연세대학교 134, 120-749 Seoul, 120-749, KR)
JEON, Hyejeong (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-don, Seocho-gu Seoul 137-724, 137-724, KR)
전혜정 (서울시 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
KIM, Daehwan (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-don, Seocho-gu Seoul 137-724, 137-724, KR)
김대환 (서울시 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
JEONG, Gyuhyeok (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-don, Seocho-gu Seoul 137-724, 137-724, KR)
엘지전자 주식회사 (서울 영등포구 여의도동 20, 150-721 Seoul, 150-721, KR)
INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY (Yonsei University, 134 Sinchon-dong Seodaemoon-gu, Seoul 120-749, 120-749, KR)
연세대학교 산학협력단 (서울시 서대문구 신천동 연세대학교 134, 120-749 Seoul, 120-749, KR)
JEON, Hyejeong (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-don, Seocho-gu Seoul 137-724, 137-724, KR)
전혜정 (서울시 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
KIM, Daehwan (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-don, Seocho-gu Seoul 137-724, 137-724, KR)
김대환 (서울시 서초구 우면동 16번지 엘지전자 특허센터, 137-724 Seoul, 137-724, KR)
JEONG, Gyuhyeok (Intellectual Property Center, LG Electronics Inc.16 Woomyeon-don, Seocho-gu Seoul 137-724, 137-724, KR)
International Classes:
G10L19/04
Attorney, Agent or Firm:
KIM, Yong In et al. (KBK & Associates, 7th Floor Hyundae Building175-9 Jamsil-dong, Songpa-ku, Seoul 138-861, 138-861, KR)
Download PDF: