The Role of High Frequencies in Convolutive Blind Source Separation of Speech Signals

Abstract. In this paper, we investigate the importance of the high frequencies in the problem of convolutive blind source separation (BSS) of speech signals. In particular, we focus on frequency domain blind source separation (FD-BSS), and show that when separation is performed in the low frequency bins only, the recovered signals are similar in quality to those extracted when all frequencies are taken into account. The methods are compared through informal listening tests, as well as using an objective measure.

• Type: Conference
• Year: 2007
• Where: ICA
• Authors: Maria G. Jafari, Mark D. Plumbley
• Keywords: Blind Source Separation, Convolutive Blind Source, Domain Blind Source, ICA 2007, Signal Processing