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G. Del Galdo, O. Thiergart, F. Kuech, M. Taseska, and D. Sishtla, "Optimized Parameter Estimation in Directional Audio Coding Using Nested Microphone Arrays," Paper 7911, (2009 October.). doi: G. Del Galdo, O. Thiergart, F. Kuech, M. Taseska, and D. Sishtla, "Optimized Parameter Estimation in Directional Audio Coding Using Nested Microphone Arrays," Paper 7911, (2009 October.). doi:
Abstract: Directional Audio Coding (DirAC) is an efficient technique to capture and reproduce spatial sound on the basis of a downmix audio signal, direction of arrival, and diffuseness of sound. In practice, these parameters are determined using arrays of omnidirectional microphones. The main drawback of such configurations is that the estimates are reliable only in a certain frequency range, which depends on the array size. To overcome this problem and cover large bandwidths, we propose concentric arrays of different sizes. We derive optimal joint estimators for the DirAC parameters with respect to the mean squared error. We address the problem of choosing the optimal array sizes for specific applications such as teleconferencing and we verify our findings with measurements.

@article{del galdo2009optimized,
author={del galdo, giovanni and thiergart, oliver and kuech, fabian and taseska, maja and sishtla, divya},
journal={journal of the audio engineering society},
title={optimized parameter estimation in directional audio coding using nested microphone arrays},
year={2009},
volume={},
number={},
pages={},
doi={},
month={october},} @article{del galdo2009optimized,
author={del galdo, giovanni and thiergart, oliver and kuech, fabian and taseska, maja and sishtla, divya},
journal={journal of the audio engineering society},
title={optimized parameter estimation in directional audio coding using nested microphone arrays},
year={2009},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={directional audio coding (dirac) is an efficient technique to capture and reproduce spatial sound on the basis of a downmix audio signal, direction of arrival, and diffuseness of sound. in practice, these parameters are determined using arrays of omnidirectional microphones. the main drawback of such configurations is that the estimates are reliable only in a certain frequency range, which depends on the array size. to overcome this problem and cover large bandwidths, we propose concentric arrays of different sizes. we derive optimal joint estimators for the dirac parameters with respect to the mean squared error. we address the problem of choosing the optimal array sizes for specific applications such as teleconferencing and we verify our findings with measurements.},}

TY - paper
TI - Optimized Parameter Estimation in Directional Audio Coding Using Nested Microphone Arrays
SP - EP -
AU - Del Galdo, Giovanni
AU - Thiergart, Oliver
AU - Kuech, Fabian
AU - Taseska, Maja
AU - Sishtla, Divya
PY - 2009
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2009 TY - paper
TI - Optimized Parameter Estimation in Directional Audio Coding Using Nested Microphone Arrays
SP - EP -
AU - Del Galdo, Giovanni
AU - Thiergart, Oliver
AU - Kuech, Fabian
AU - Taseska, Maja
AU - Sishtla, Divya
PY - 2009
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2009
AB - Directional Audio Coding (DirAC) is an efficient technique to capture and reproduce spatial sound on the basis of a downmix audio signal, direction of arrival, and diffuseness of sound. In practice, these parameters are determined using arrays of omnidirectional microphones. The main drawback of such configurations is that the estimates are reliable only in a certain frequency range, which depends on the array size. To overcome this problem and cover large bandwidths, we propose concentric arrays of different sizes. We derive optimal joint estimators for the DirAC parameters with respect to the mean squared error. We address the problem of choosing the optimal array sizes for specific applications such as teleconferencing and we verify our findings with measurements.