Separation of speech from simultaneous talkers
R.I. Damper, J. R. Thorpe, C.H. Shadle · ePrints Soton (University of Southampton) · 1995
The separation of speech from two simultaneous talkers is a problem of some practical and theoretical importance. We describe a prototype separation system based on harmonic selection using comb filters. Hermes' subharmonic spectrum method is used to produce a number of (weighted) pitch estimates, with pitch tracks for the two talkers then found by constrained dynamic programming. The system has successfully separated composite male/female /hVd/ tokens but performance is currently rather variable.