상세정보
학술대회
Variable Subband Analysis for High Quality Spatial Audio Object Coding
- 발행일
- 200802
- 출처
- International Conference on Advanced Communication Technology (ICACT) 2008, pp.1205-1208
- 협약과제
- 07MR3300, 무안경 개인형 3D 방송기술개발, 안치득
- 초록
- Spatial Audio Object Coding (SAOC) handles a number of audio objects to provide a user with active audio services. It represents all objects as a stereo downmixed signal with some side information, and the bitrate can be significantly reduced compared to that of the conventional audio coders. In spite of the advantage of bitrate reduction, the SAOC has the severe problem such as the degradation of sound quality. To solve the problem while minimizing increase of the bitrate, variable subband analysis and the revised SAOC structure called two-step structure were proposed in this paper. Through a subjective listening test, it was confirmed that the proposed method improves sound quality by a small bitrate increase.
- KSP 제안 키워드
- Spatial audio object coding, Step structure, Two-Step, side information, sound quality, subband analysis, subjective listening tests