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Journal Article Improved Channel Level Difference Quantization for Spatial Audio Coding
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Authors
Kwangki Kim, Seungkwon Beack, Jeongil Seo, Daeyoung Jang, Minsoo Hahn
Issue Date
2007-02
Citation
ETRI Journal, v.29, no.1, pp.99-102
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.4218/etrij.07.0206.0149
Abstract
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 Keywords
Level difference, Location information(GPS), MPEG Surround, Quantization levels, Quantization process, Reference Model, Source Location, Spatial audio coding, Virtual source, quantization method
This work is distributed under the term of Korea Open Government License (KOGL)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
Type 4: