ETRI Journal

  • 제31권5호
  • /
  • Pages.613-615
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  • 2009
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  • 1225-6463(pISSN)
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  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
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Pilot-Based Coding Scheme for Parametric Stereo in Enhanced aacPlus

  • Pang, Hee-Suk (Department of Electronics Engineering, Sejong University)
  • 투고 : 2009.05.07
  • 심사 : 2009.06.15
  • 발행 : 2009.10.31
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초록

We propose a pilot-based coding (PBC) scheme for lossless bit rate reduction of parametric stereo (PS) in enhanced aacPlus. It uses PBC in addition to the existing frequency and time differential coding to encode and decode PS parameter indexes. We also design optimal Huffman codebooks (HCBs) for PBC in the proposed scheme. Experiments show that the proposed scheme is superior to the original coding scheme, where both the new coding structure and the optimal HCBs contribute to the bit rate reduction.

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참고문헌

  1. 3GPP TS 26.401, Enhanced aacPlus General Audio Codec; General Description, v.8.0.0., 2008.
  2. 3GPP TS 26.405, Enhanced aacPlus General Audio Codec; Encoder Specification Parametric Stereo Part, v.8.0.0., 2008.
  3. ISO/IEC 14496-3, Information Technology–Coding of Audio-Visual Objects–Part 3: Audio, 2005.
  4. ISO/IEC 23003-1, Information Technology–MPEG Audio Technologies–Part 1: MPEG Surround, 2007.
  5. S. Beack et al., “Angle-Based Virtual Source Location Representation for Spatial Audio Coding,” ETRI J., vol. 28, no. 2, Apr. 2006, pp. 219-222. https://doi.org/10.4218/etrij.06.0205.0079
  6. K. Kim et al., “Improved Channel Level Difference Quantization for Spatial Audio Coding,” ETRI J., vol. 29, no. 1, Feb. 2007, pp. 99-102. https://doi.org/10.4218/etrij.07.0206.0149
  7. H.O. Oh, Y.W. Jung, H.S. Pang, D.S. Kim, and J. Lim, “Proposed Core Experiment on Pilot-Based Coding of Spatial Parameters of MPEG Surround,” ISO/IEC JTC1/SC29/WG11, M12549, 2005.
  8. H.S. Pang, J. Lim, and H.O. Oh, “Extended Pilot-Based Coding for Lossless Bit Rate Reduction of MPEG Surround,” ETRI J., vol. 29, no. 1, Feb. 2007, pp. 103-106. https://doi.org/10.4218/etrij.07.0206.0173

피인용 문헌

  1. Enhanced aacPlus의 Parametric Stereo에서 스테레오 파라미터의 컨텍스트 적응 코딩을 위한 최적 컨텍스트 탐색 vol.31, pp.7, 2009, https://doi.org/10.7776/ask.2012.31.7.435
  2. New Context-Adaptive Arithmetic Coding Scheme for Lossless Bit Rate Reduction of Parametric Stereo in Enhanced aacPlus vol.ed101, pp.12, 2009, https://doi.org/10.1587/transinf.2018edl8135