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

  • Sang Bae Chon
  • In Yong Choi
  • Jeongil Seo
  • Koeng-Mo Sung
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3767)


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.


Sound Source Audio Signal Global Vector Audio Code Left Center 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Sang Bae Chon
    • 1
  • In Yong Choi
    • 1
  • Jeongil Seo
    • 2
  • Koeng-Mo Sung
    • 1
  1. 1.Applied Acoustics Laboratory, School of Electrical Engineering and Computer ScienceSeoul National UniversitySeoulRepublic of Korea
  2. 2.Broadcasting Media Research GroupElectronics and Telecommunications Research Institute (ETRI)DaejeonRepublic of Korea

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