A unified approach for underdetermined blind signal separation and source activity detection by multichannel factorial hidden Markov models


Contributors: Takuya Higuchi, Hirofumi Takeda, Tomohiko Nakamura (The University of Tokyo) and Hirokazu Kameoka (The University of Tokyo, NTT Corporation).


Demo audios

The audio files are from RWCP database.


source signalsmixed signal separated signals by proposed method separated signals by conventional method
bell

whistle

stapler
mixed signal
bell

whistle

stapler
bell

whistle

stapler
bell

moving source A

moving source B
mixed signal
fixed source

moving source A

moving source B
fixed source

moving source A

moving source B
fixed source

moving source A

moving source B
mixed signal
fixed source

moving source A

moving source B
fixed source

moving source A

moving source B