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In this paper we develop a method for the sound source separation of single channel mixtures using Independent Component Analysis within a time-frequency representation of the audio signal. We apply standard Independent Component Analysis techniques to contiguous magnitude frames of the short-time Fourier transform of the mixture. Provided that the amplitude envelopes of each source are sufficiently different, it can be seen that it is possible to recover the independent short-time power spectra of each source. A simple scoring scheme based on auditory scene analysis cues is then used to overcome the source ordering problem ultimately allowing each of the independent spectra to be assigned to the correct output source. A final stage of adaptive filtering is then applied which forces each of the spectra to become more independent. Each of the sources is then resynthesised using the standard inverse short-time Fourier transform and overlap add scheme.
Author (s): Barry, Dan; Coyle, Eugene; Fitzgerald, Derry; Lawlor, Robert
Affiliation:
Cork Institute of Technology; Dublin Institute of Technology; National University of Ireland
(See document for exact affiliation information.)
AES Convention: 119
Paper Number:6603
Publication Date:
2005-10-06
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Session subject:
Signal Processing
Permalink: https://aes2.org/publications/elibrary-page/?id=13364
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Barry, Dan; Coyle, Eugene; Fitzgerald, Derry; Lawlor, Robert; 2005; Single Channel Source Separation Using Short-Time Independent Component Analysis [PDF]; Cork Institute of Technology; Dublin Institute of Technology; National University of Ireland; Paper 6603; Available from: https://aes2.org/publications/elibrary-page/?id=13364
Barry, Dan; Coyle, Eugene; Fitzgerald, Derry; Lawlor, Robert; Single Channel Source Separation Using Short-Time Independent Component Analysis [PDF]; Cork Institute of Technology; Dublin Institute of Technology; National University of Ireland; Paper 6603; 2005 Available: https://aes2.org/publications/elibrary-page/?id=13364
@article{barry2005single,
author={barry dan and coyle eugene and fitzgerald derry and lawlor robert},
journal={journal of the audio engineering society},
title={single channel source separation using short-time independent component analysis},
year={2005},
number={6603},
month={october},}