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ON-LINE BLIND SEPARATION OF MOVING SOUND SOURCES Jorn Anemuller and Tino Gramss
 

Summary: ON-LINE BLIND SEPARATION OF MOVING SOUND SOURCES
Jorn Anemuller and Tino Gramss ݵ
Dept. of Physics, Graduate School in Psychoacoustics
Carl-von-Ossietzky-University, 26111 Oldenburg, Germany
ane@uni-oldenburg.de
ABSTRACT
In this paper, we propose a method for the on-line blind sep-
aration of sound sources in the case where the mixing filters
have a -shaped impulse response. Our algorithm works en-
tirely in the frequency domain and exhibits fast convergence
due to cross-frequency couplings.
Specific problems related to on-line separation of run-
ning speech are discussed. The algorithm performs success-
ful separation of digitally mixed speech signals and of sig-
nals from a moving and a standing speaker recorded in an
anechoic chamber.
1. SOURCE SEPARATION
In the case of an instantaneous linear superposition
ص ص (1)
of independent source signals ص resulting in sen-

  

Source: Anemller, Jrn - Medical Physics Section, Carl von Ossietzky Universitt Oldenburg

 

Collections: Biology and Medicine