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J. Ahonen, G. Del Galdo, F. Kuech, and V. Pulkki, "Directional Analysis with Microphone Array Mounted on Rigid Cylinder for Directional Audio Coding," J. Audio Eng. Soc., vol. 60, no. 5, pp. 311-324, (2012 May.). doi: J. Ahonen, G. Del Galdo, F. Kuech, and V. Pulkki, "Directional Analysis with Microphone Array Mounted on Rigid Cylinder for Directional Audio Coding," J. Audio Eng. Soc., vol. 60 Issue 5 pp. 311-324, (2012 May.). doi:
Abstract: As a spatial-sound processing technique, directional audio coding can determine the direction of arrival of a sound wave. When based on a square array of four omnidirectional microphones, reliable estimation of direction is limited to a restricted frequency range. However, when a rigid cylinder is inserted into the array, the resulting acoustic shadows and scattering allow intermicrophone differences to be used in the quantization. Both methods estimate the direction reliably over the entire audible frequency range. Subjective listening tests corroborate the objective computations.

@article{ahonen2012directional,
author={ahonen, jukka and del galdo, giovanni and kuech, fabian and pulkki, ville},
journal={journal of the audio engineering society},
title={directional analysis with microphone array mounted on rigid cylinder for directional audio coding},
year={2012},
volume={60},
number={5},
pages={311-324},
doi={},
month={may},} @article{ahonen2012directional,
author={ahonen, jukka and del galdo, giovanni and kuech, fabian and pulkki, ville},
journal={journal of the audio engineering society},
title={directional analysis with microphone array mounted on rigid cylinder for directional audio coding},
year={2012},
volume={60},
number={5},
pages={311-324},
doi={},
month={may},
abstract={as a spatial-sound processing technique, directional audio coding can determine the direction of arrival of a sound wave. when based on a square array of four omnidirectional microphones, reliable estimation of direction is limited to a restricted frequency range. however, when a rigid cylinder is inserted into the array, the resulting acoustic shadows and scattering allow intermicrophone differences to be used in the quantization. both methods estimate the direction reliably over the entire audible frequency range. subjective listening tests corroborate the objective computations.},}

TY - paper
TI - Directional Analysis with Microphone Array Mounted on Rigid Cylinder for Directional Audio Coding
SP - 311 EP - 324
AU - Ahonen, Jukka
AU - Del Galdo, Giovanni
AU - Kuech, Fabian
AU - Pulkki, Ville
PY - 2012
JO - Journal of the Audio Engineering Society
IS - 5
VO - 60
VL - 60
Y1 - May 2012 TY - paper
TI - Directional Analysis with Microphone Array Mounted on Rigid Cylinder for Directional Audio Coding
SP - 311 EP - 324
AU - Ahonen, Jukka
AU - Del Galdo, Giovanni
AU - Kuech, Fabian
AU - Pulkki, Ville
PY - 2012
JO - Journal of the Audio Engineering Society
IS - 5
VO - 60
VL - 60
Y1 - May 2012
AB - As a spatial-sound processing technique, directional audio coding can determine the direction of arrival of a sound wave. When based on a square array of four omnidirectional microphones, reliable estimation of direction is limited to a restricted frequency range. However, when a rigid cylinder is inserted into the array, the resulting acoustic shadows and scattering allow intermicrophone differences to be used in the quantization. Both methods estimate the direction reliably over the entire audible frequency range. Subjective listening tests corroborate the objective computations.