상세정보
등록 적응 코드북 업데이트를 이용한 오디오 신호 디코딩 방법 및 장치
- 출원번호
- 13876768 (2011.09.28)
- 공개번호
- 20130246068 (2013.09.19)
- 등록번호
- 9087510 (2015.07.21)
- 출원국
- 미국
- 협약과제
- 10MI3100, FMC 어커스틱 융합코덱 및 제어기술 연구 (표준화연계), 이병선
- 초록
- Disclosed are a method and apparatus for decoding a an audiospeech signal using an adaptive codebook update. The method for decoding speech an audio signal includes: receiving an N+1-th normal frame data that is a normal frame transmitted after an N-th frame that is a loss frame data loss; determining whether an adaptive codebook of a final subframe of the N-th frame is updated or not by using the N-th frame and the N+1-th frame; updating the adaptive codebook of the final subframe of the N-th frame by using a the pitch index of the N+1-the frame; and synthesizing an audio a speech signal of by using the N+1-th frame.
- KSP 제안 키워드
- Audio signal, Data loss, Frame data, Speech Signals