Optimal Distributed Microphone Phase Estimation
Dr. Dolittle Project: A Framework for Classification and Understanding of Animal Vocalizations
IEEE International Conference on Acoustics, Speech and Signal Processing, 2009: ICASSP; Taipei, Taiwan, April 19-24, 2009
1520-6149, 978-1-4244-2354-5, 978-1-4244-2353-8
This paper presents a minimum mean-square error spectral phase estimator for speech enhancement in the distributed multiple microphone scenario. The estimator uses Gaussian models for both the speech and noise priors under the assumption of a diffuse incoherent noise field representing ambient noise in a widely dispersed microphone configuration. Experiments demonstrate significant benefits of using the optimal multichannel phase estimator as compared to the noisy phase of a reference channel.
Trawicki, Marek B. and Johnson, Michael T., "Optimal Distributed Microphone Phase Estimation" (2009). Dr. Dolittle Project: A Framework for Classification and Understanding of Animal Vocalizations. 19.