Three-Dimensional Microphone Array for Speech Enhancement in Hands-Free Systems for Cars

Ayllón D, Benito-Olivares V, LLerena-Aguilar C, Gil Pita R, Rosa Zurera M. Three-Dimensional Microphone Array for Speech Enhancement in Hands-Free Systems for Cars. In: AES Conference: 45th International Conference: Applications of Time-Frequency Processing in Audio. Audio Engineering Society; 2012. Paper 3-8. Available from: https://aes.org/publications/elibrary-page/?id=16193

@inproceedings{Ayllon2012_16193,
  author = {Ayllón, David and Benito-Olivares, Vanesa and LLerena-Aguilar, Cosme and Gil Pita, Roberto and Rosa Zurera, Manuel},
  title = {{Three-Dimensional Microphone Array for Speech Enhancement in Hands-Free Systems for Cars}},
  booktitle = {AES Conference: 45th International Conference: Applications of Time-Frequency Processing in Audio},
  note = {Paper 3-8},
  year = {2012},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16193}
}

TY  - CPAPER
TI  - Three-Dimensional Microphone Array for Speech Enhancement in Hands-Free Systems for Cars
AU  - Ayllón, David
AU  - Benito-Olivares, Vanesa
AU  - LLerena-Aguilar, Cosme
AU  - Gil Pita, Roberto
AU  - Rosa Zurera, Manuel
T2  - AES Conference: 45th International Conference: Applications of Time-Frequency Processing in Audio
M1  - Paper 3-8
PY  - 2012
DA  - 2012/03/06
UR  - https://aes.org/publications/elibrary-page/?id=16193
PB  - Audio Engineering Society
LA  - en
AB  - In this paper we propose a three-dimensional microphone array for speech enhancement in hands-free devices for cars, comparing its performance with linear and planar arrays with the same number of elements. We simulated a realistic environment considering driving noise, interfering speech coming from the loudspeakers, and reverberations. Furthermore, the Minimum Variance Distortionless Response (MVDR) and Linearly Constrained Minimum Variance (LCMV) beamforming techniques have been evaluated. Results show that the proposed array obtains a notably improvement of intelligibility comparing with the other arrays. Finally, the use of LCMV technique also improves the speech intelligibility, in detriment of the MVDR technique.
ER  -