NikosMitianoudis

Research Associate


Batch and online underdetermined source separation using Laplacian Mixture Models

Some samples demonstrating the algorithms and the experiments proposed and conducted in the following paper are presented here:
"Batch and online underdetermined source separation using Laplacian Mixture Models", IEEE Transactions in Audio, Speech and Language Processing, Vol. 15, No. 6, pp. 1818 - 1832, August 2007.
"Underdetermined Source Separation using Mixtures of Warped Laplacians ", International Conference on Independent Component Analysis and Source Separation (ICA), London, UK, September 2007.



Batch Processing

Five Uncorrelated Audio sources - Case 1
Sources: Source l - Source 2 - Source 3 - Source 4 - Source 5
Mixture: Mixed Signal (Stereo)
WLMM-Hard: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5
LMM-Soft: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5
LMM-Hard: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5
Hyvarinen: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5
Hard-LOST: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5
Soft-LOST: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5
DUET: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5


Five Uncorrelated Audio sources - Case 2
Sources: Source l - Source 2 - Source 3 - Source 4 - Source 5
Mixture: Mixed Signal (Stereo)
WLMM-Hard: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5
LMM-Soft: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5
LMM-Hard: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5
Hyvarinen: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5
Hard-LOST: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5
Soft-LOST: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5
DUET: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4 - Separated Source 5


Latino 1
Sources: Source l - Source 2 - Source 3 - Source 4
Mixture: Mixed Signal (Stereo)
WLMM-Hard: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
LMM-Soft: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
LMM-Hard: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
Hyvarinen: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
Hard-LOST: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
Soft-LOST: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
< DUET: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4


Latino 2
Sources: Source l - Source 2 - Source 3 - Source 4
Mixture: Mixed Signal (Stereo)
WLMM-Hard: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
LMM-Soft: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
LMM-Hard: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
Hyvarinen: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
Hard-LOST: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
Soft-LOST: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
DUET: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4


Groove
Sources: Source l - Source 2 - Source 3 - Source 4
Mixture: Mixed Signal (Stereo)
WLMM-Hard: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
LMM-Soft: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
LMM-Hard: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
Hyvarinen: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
Hard-LOST: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
Soft-LOST: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4
DUET: Separated Source 1 - Separated Source 2 - Separated Source 3 - Separated Source 4


Online Processing - Stationary mixing

Three Uncorrelated Audio sources - Distant Directions of Arrival
Sources: Source l - Source 2 - Source 3
Mixture: Mixed Signal (Stereo)
Online-LMM: Separated Source 1 - Separated Source 2 - Separated Source 3
Online-Hyvarinen: Separated Source 1 - Separated Source 2 - Separated Source 3


Three Uncorrelated Audio sources - Closer Directions of Arrival
Sources: Source l - Source 2 - Source 3
Mixture: Mixed Signal (Stereo)
Online-LMM: Separated Source 1 - Separated Source 2 - Separated Source 3
Online-Hyvarinen: Separated Source 1 - Separated Source 2 - Separated Source 3

Online Processing - Non-Stationary mixing

Three Uncorrelated Audio sources - Similar Sinusoidal movement
Sources: Source l - Source 2 - Source 3
Mixture: Mixed Signal (Stereo)
Online-LMM: Separated Source 1 - Separated Source 2 - Separated Source 3
Online-Hyvarinen: Separated Source 1 - Separated Source 2 - Separated Source 3


Three Uncorrelated Audio sources - Different movement
Sources: Source l - Source 2 - Source 3
Mixture: Mixed Signal (Stereo)
Online-LMM: Separated Source 1 - Separated Source 2 - Separated Source 3
Online-Hyvarinen: Separated Source 1 - Separated Source 2 - Separated Source 3


© Nikos Mitianoudis 2007