MALSORI (대한음성학회지:말소리)

  • Issue 53
  • /
  • Pages.157-169
  • /
  • 2005
  • /
  • 1226-1173(pISSN)
The Korean Society Of Phonetic Sciences And Speech Technology (대한음성학회)
권호 표지

An efficient method of spatial cues and compensation method of spectrums on multichannel spatial audio coding

멀티채널 Spatial Audio Coding에서의 효율적인 Spatial Cues 사용과 그에 따른 Spectrum 보상방법

  • 이병화 (한국정보통신대학교(ICU) 음성/음향 정보 연구실) ;
  • 백승권 (한국정보통신대학교(ICU) 음성/음향 정보 연구실) ;
  • 서정일 (한국전자통신연구원(ETRI) 디지털방송연구단 3D미디어연구팀) ;
  • 한민수 (한국정보통신대학교(ICU) 음성/음향 정보 연구실)
  • Published : 2005.03.01
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Abstract

This paper proposes an efficiently representing method of spatial cues on multichannel spatial audio coding. The Binaural Cue Coding (BCC) method introduced recently represents multichannel audio signals by means of Inter Channel Level Difference (ICLD) or Source Index (SI). We tried to express more efficiently ICLD and SI information based on Inter Channel Correlation in this paper. We adopt different spatial cues according to ICC and propose a compensation method of empty spectrums created by using SI. We performed a MOS test and measuring spectral distortion. The results show that the proposed method can reduce the bitrate of side information without large degradation of the audio quality.

Keywords