상세정보
학술지
Single-Mode-Based Unified Speech and Audio Coding by Extending the Linear Prediction Domain Coding Mode
- 발행일
- 201706
- 출처
- ETRI Journal, v.39 no.3, pp.310-318
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 16MR1200, (통합)초고품질 콘텐츠 지원 UHD실감 방송/디지털 시네마/사이니지 융합서비스 기술 개발, 최진수
- 초록
- Unified speech and audio coding (USAC) is one of the latest coding technologies. It is based on a switchable coding structure, and has demonstrated the highest levels of performance for both speech and music contents. In this paper, we propose an extended version of USAC with a single-mode of operation which does not require a switching system by extending the linear predictioncoding mode. The main concept of this extension is the adoption of the advantages of frequency-domain coding schemes, such as windowing and transition control. Subjective test results indicate that the proposed scheme covers speech, music, and mixed streams with adequate levels of performance. The obtained quality levels are comparable with those of USAC.
- KSP 제안 키워드
- Linear prediction, Mode of Operation, Quality level, Single mode, Subjective test, Transition control, Unified Speech and Audio Coding(USAC), frequency domain(FD), switching system
본 저작물은 공공누리 제4유형 : 출처표시 + 상업적 이용금지 + 변경금지 조건에 따라 이용할 수 있습니다.
