Second European Conference on Speech Communication and Technology

Genova, Italy
September 24-26, 1991


Pitch Extraction and Separation of Overlapping Speech

P. N. Denbigh, J. Zhao

School of Engineering and Applied Sciences, University of Sussex, Fainter, Brighton, UK

This paper describes two algorithms for separating two overlapping speech signals. Both rely heavily on accurate measurements of the pitch of the target voice. The first uses a single microphone, and an important feature is the exploitation of the onset of a voiced sound as an aid to the extraction of its pitch in the presence of interference. The second uses two microphones, and an important feature is the utilisation of the direction of the target voice.

Full Paper

Bibliographic reference.  Denbigh, P. N. / Zhao, J. (1991): "Pitch extraction and separation of overlapping speech", In EUROSPEECH-1991, 545-548.