Minimization of Decorrelator Artifacts in Directional Audio Coding by Covariance Domain Rendering

Vilkamo J, Pulkki V. Minimization of Decorrelator Artifacts in Directional Audio Coding by Covariance Domain Rendering. J Audio Eng Soc. 2013;61(9):637-646. Available from: https://aes.org/publications/elibrary-page/?id=16932

@article{Vilkamo2013_16932,
  author = {Vilkamo, Juha and Pulkki, Ville},
  title = {{Minimization of Decorrelator Artifacts in Directional Audio Coding by Covariance Domain Rendering}},
  journal = {Journal of the Audio Engineering Society},
  volume = {61},
  number = {9},
  pages = {637--646},
  year = {2013},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16932}
}

TY  - JOUR
TI  - Minimization of Decorrelator Artifacts in Directional Audio Coding by Covariance Domain Rendering
AU  - Vilkamo, Juha
AU  - Pulkki, Ville
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 61
IS  - 9
SP  - 637
EP  - 646
PY  - 2013
DA  - 2013/09/06
UR  - https://aes.org/publications/elibrary-page/?id=16932
PB  - Audio Engineering Society
LA  - en
AB  - Directional Audio Coding (DirAC) is a perceptually motivated microphone technique that models the sound field as a combination of a plane wave and a surrounding diffuse field with a time–frequency resolution that approximates that of the human spatial hearing. In this paper a recently proposed covariance domain spatial-sound rendering method was applied to optimize the DirAC reproduction by minimizing the amount of the decorrelated sound energy. When several semi-independent microphone signals were available, this procedure was shown to improve the overall perceived sound quality, especially with audio content that has an impulsive fine structure, such as applause and speech. In all tests, the covariance rendering method performed similarly or better than the legacy rendering method, making it the preferred choice for performing DirAC synthesis.
ER  -