Bandwidth-Scalable Stereo Audio Coding Based on a Layered Structure

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概要

• 論文の詳細を見る

• In this paper, we propose a bandwidth-scalable stereo audio coding method based on a layered structure. The proposed stereo coding method encodes super-wideband (SWB) stereo signals and is able to decode either wideband (WB) stereo signals or SWB stereo signals, depending on the network congestion. The performance of the proposed stereo coding method is then compared with that of a conventional stereo coding method that separately decodes WB or SWB stereo signals, in terms of subjective quality, algorithmic delay, and computational complexity. Experimental results show that when stereo audio signals sampled at a rate of 32kHz are compressed to 64kbit/s, the proposed method provides significantly better audio quality with a 64-sample shorter algorithmic delay, and comparable computational complexity.

• （社）電子情報通信学会の論文
• 2009-12-01

著者

• KIM Hong

  School of Information and Communications, Gwangju Institute of Science and Technology (GIST)

• Lee Young

  Dept. Of Information And Communications Gwangju Institute Of Science And Technology

• Bae Hyun

  Etri

• Kim Hong

  Gwangju Inst. Sci. And Technol. Gwangju Kor

• Kim Hong

  Dept. Of Information And Communications Gwangju Institute Of Science And Technology

• KIM Deok

  Dept. of Information and Communications, Gwangju Institute of Science and Technology

• SUNG Jongmo

  ETRI

• LEE Mi

  ETRI

• Kim Deok

  Dept. Of Information And Communications Gwangju Institute Of Science And Technology

• Lee Young

  Dept. Of Clothing And Textiles Chonnam National Uneversity

• Lee Young

  Dept. Of Agronomy Seoul National University

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