Minimization of Decorrelator Artifacts in Directional Audio Coding by Covariance Domain Rendering
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J. Vilkamo, and V. Pulkki, "Minimization of Decorrelator Artifacts in Directional Audio Coding by Covariance Domain Rendering," J. Audio Eng. Soc., vol. 61, no. 9, pp. 637-646, (2013 September.). doi:
J. Vilkamo, and V. Pulkki, "Minimization of Decorrelator Artifacts in Directional Audio Coding by Covariance Domain Rendering," J. Audio Eng. Soc., vol. 61 Issue 9 pp. 637-646, (2013 September.). doi:
Abstract: 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.
@article{vilkamo2013minimization,
author={vilkamo, juha and pulkki, ville},
journal={journal of the audio engineering society},
title={minimization of decorrelator artifacts in directional audio coding by covariance domain rendering},
year={2013},
volume={61},
number={9},
pages={637-646},
doi={},
month={september},}
@article{vilkamo2013minimization,
author={vilkamo, juha and pulkki, ville},
journal={journal of the audio engineering society},
title={minimization of decorrelator artifacts in directional audio coding by covariance domain rendering},
year={2013},
volume={61},
number={9},
pages={637-646},
doi={},
month={september},
abstract={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.},}
TY - paper
TI - Minimization of Decorrelator Artifacts in Directional Audio Coding by Covariance Domain Rendering
SP - 637
EP - 646
AU - Vilkamo, Juha
AU - Pulkki, Ville
PY - 2013
JO - Journal of the Audio Engineering Society
IS - 9
VO - 61
VL - 61
Y1 - September 2013
TY - paper
TI - Minimization of Decorrelator Artifacts in Directional Audio Coding by Covariance Domain Rendering
SP - 637
EP - 646
AU - Vilkamo, Juha
AU - Pulkki, Ville
PY - 2013
JO - Journal of the Audio Engineering Society
IS - 9
VO - 61
VL - 61
Y1 - September 2013
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.
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.
