Ninth International Conference on Spoken Language Processing

Pittsburgh, PA, USA
September 17-21, 2006

Multi-Microphone Periodicity Function for Robust F0 Estimation in Real Noisy and Reverberant Environments

Federico Flego, Maurizio Omologo

ITC-irst, Italy

This paper outlines a new method to extract F0 from distant-talking speech signals acquired by a microphone network, which exploits the redundancy across the signals proceeding from each microphone, by jointly processing the different contributes. To this purpose, a multi-microphone periodicity function is derived from the magnitude spectrum computed on each microphone signal. This function allows to estimate F0 reliably, even under reverberant conditions, without the need of any post-processing or smoothing technique. Experiments, conducted on real lectures, showed that the proposed frequencydomain algorithm is more suitable than other time-domain based ones.

Full Paper

Bibliographic reference.  Flego, Federico / Omologo, Maurizio (2006): "Multi-microphone periodicity function for robust F0 estimation in real noisy and reverberant environments", In INTERSPEECH-2006, paper 1536-Wed3FoP.5.