상세정보
학술지
Improved Channel Level Difference Quantization for Spatial Audio Coding
- 발행일
- 200702
- 출처
- ETRI Journal, v.29 no.1, pp.99-102
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 06MR1100, 지능형 통합정보 방송(SmaR TV) 기술개발, 안치득
- 초록
- The channel level difference (CLD) is a main parameter in the reference model 0 (RM0) for MPEG Surround. Nevertheless, the CLD quantization method in the RM0 has problems such as the lack of theoretical background and inappropriate quantization levels. In this letter, a new CLD quantization method is proposed based on the virtual source location information which has strength in the quantization process. From experimental results, it is confirmed that the proposed scheme greatly reduces the quantization distortions measured in dB and degrees without any additional complexity.
- KSP 제안 키워드
- Level difference, Location information(GPS), MPEG Surround, Quantization levels, Quantization process, Reference Model, Source Location, Spatial audio coding, Virtual source, quantization method
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