A unified approach for underdetermined blind signal separation and source activity detection by multichannel factorial hidden Markov models.
Takuya HiguchiHirofumi TakedaTomohiko NakamuraHirokazu KameokaPublished in: INTERSPEECH (2014)
Keyphrases
- hidden markov models
- activity detection
- blind signal separation
- source signals
- single channel
- independent component analysis
- mixing matrix
- blind source separation
- multi channel
- source separation
- blind separation
- nonlinear functions
- speech signal
- speech recognition
- independent components
- blind deconvolution
- sequential data
- random projections
- principal component analysis
- non stationary
- sparse representation