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Variable Bit Quantization for Virtual Source Location Information in Spatial Audio Coding
Book chapter   Peer reviewed

Variable Bit Quantization for Virtual Source Location Information in Spatial Audio Coding

Sang Bae Chon, In Yong Choi, Jeongil Seo and Koeng-Mo Sung
Advances in Multimedia Information Processing - PCM 2005, pp.709-719
Lecture Notes in Computer Science, Springer Berlin Heidelberg
2005
DOI: 10.1007/11581772_62

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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 Inter-Channel 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.
Audio Code Audio Signal Global Vector Left Center Sound Source

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