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Conference Paper Variable Bit Quantization for Virtual Source Location Information in Spatial Audio Coding
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Authors
Sang Bae Chon, In Yong Choi, Jeong Il Seo, Koeng Mo Sung
Issue Date
2005-11
Citation
Pacific-Rim Conference on Multimedia (PCM) 2005 (LNCS 3767), v.3767, pp.709-719
Language
English
Type
Conference Paper
DOI
https://dx.doi.org/10.1007/11581772_62
Project Code
05MR1100, Development of Super-intelligent Multimedia Anytime-anywhere Realistic TV(Smar TV) Technolory, Chieteuk Ahn
Abstract
In [1,2,3], Binaural Cue Coding (BCC) was introduced for multi-channel spatial rendering for MPEG 4 - SAC (Spatial Audio Coding) to reduce bitrate of multi-channel audio signal. In [4,5], Virtual Source Location Information (VSLI) was introduced to replace InterChannel Level Difference, the most determinant parameter in BCC system. Here, Variable Bit Quantization (VBQ) for VSLI is proposed to reduce bitrate at the quantization block in VSLI-based BCC systems removing statistically invalid range. © Springer-Verlag Berlin Heidelberg 2005.
KSP Keywords
Audio signal, Level difference, Location information(GPS), Multichannel audio, Source Location, Spatial Rendering, Spatial audio coding, Virtual source