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A time-frequency-domain non-linear parametric method for spatial audio processing is presented here, which can utilize microphone input having directional patterns of any order. The method is based on dividing the sound field into overlapping or non-overlapping sectors. Local pressure and velocity signals are measured within each sector, and an individual Directional Audio Coding (DirAC) processing is performed for each sector. It is shown, that in certain acoustically complex conditions the sector-based processing enhances the quality compared to traditional first-order DirAC processing.
Author (s): Pulkki, Ville; Politis, Archontis; Del Galdo, Giovanni; Kuntz, Achim
Affiliation:
Aalto University, Aalto, Finland; Ilmenau University of Technology, Ilmenau, Germany; Fraunhofer Institute for Integrated Circuits IIS, Erlangen, Germany
(See document for exact affiliation information.)
AES Convention: 134
Paper Number:8920
Publication Date:
2013-05-06
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Session subject:
Spatial Audio
Permalink: https://aes2.org/publications/elibrary-page/?id=16820
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Pulkki, Ville; Politis, Archontis; Del Galdo, Giovanni; Kuntz, Achim; 2013; Parametric Spatial Audio Reproduction with Higher-Order B-Format Microphone Input [PDF]; Aalto University, Aalto, Finland; Ilmenau University of Technology, Ilmenau, Germany; Fraunhofer Institute for Integrated Circuits IIS, Erlangen, Germany; Paper 8920; Available from: https://aes2.org/publications/elibrary-page/?id=16820
Pulkki, Ville; Politis, Archontis; Del Galdo, Giovanni; Kuntz, Achim; Parametric Spatial Audio Reproduction with Higher-Order B-Format Microphone Input [PDF]; Aalto University, Aalto, Finland; Ilmenau University of Technology, Ilmenau, Germany; Fraunhofer Institute for Integrated Circuits IIS, Erlangen, Germany; Paper 8920; 2013 Available: https://aes2.org/publications/elibrary-page/?id=16820
@article{pulkki2013parametric,
author={pulkki ville and politis archontis and del galdo giovanni and kuntz achim},
journal={journal of the audio engineering society},
title={parametric spatial audio reproduction with higher-order b-format microphone input},
year={2013},
number={8920},
month={may},}