Determined Source Separation for Microphone Recordings Using IIR Filters

A method for determined blind source separation for microphone recordings is presented which attenuates the direct path cross-talk using IIR filters. The unmixing filters are derived by approximating the transmission paths between the sources and the microphones by a delay and a gain factor. For the evaluation, the proposed method is compared to three other approaches. Degradation of the separation performances are caused by fractional delays and the directivity of microphones and sources, which are discussed here. Advantages are low latency, low computational complexity and high sound quality.

[1]  Scott Rickard,et al.  Blind separation of speech mixtures via time-frequency masking , 2004, IEEE Transactions on Signal Processing.

[2]  Christian Jutten,et al.  Blind source separation for convolutive mixtures , 1995, Signal Process..

[3]  Yannick Deville,et al.  Two Time-Frequency Ratio-Based Blind Source Separation Methods for Time-Delayed Mixtures , 2006, ICA.

[4]  Özgür Yilmaz,et al.  On the approximate W-disjoint orthogonality of speech , 2002, 2002 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[5]  Pierre Comon,et al.  Independent component analysis, A new concept? , 1994, Signal Process..

[6]  Jont B. Allen,et al.  Image method for efficiently simulating small‐room acoustics , 1976 .

[7]  Robert Lawlor,et al.  Speech Source Enhancement using a Modified ADRess Algorithm for Applications in Mobile Communications , 2006 .

[8]  G. Carter,et al.  The generalized correlation method for estimation of time delay , 1976 .

[9]  Walter Kellermann,et al.  TRINICON: a versatile framework for multichannel blind signal processing , 2004, 2004 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[10]  Meir Feder,et al.  Multi-channel signal separation by decorrelation , 1993, IEEE Trans. Speech Audio Process..

[11]  Joshua D. Reiss,et al.  Determination and Correction of Individual Channel Time Offsets for Signals Involved in an Audio Mixture , 2008 .

[12]  Scott Rickard,et al.  The DUET Blind Source Separation Algorithm , 2007, Blind Speech Separation.

[13]  Harald Viste,et al.  On the Use of Spatial Cues to Improve Binaural Source Separation , 2003 .

[14]  Dan Barry,et al.  Sound Source Separation: Azimuth Discrimination and Resynthesis , 2004 .

[15]  Rémi Gribonval,et al.  A Robust Method to Count and Locate Audio Sources in a Stereophonic Linear Anechoic Mixture , 2007, 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07.

[16]  S. Boll,et al.  Suppression of acoustic noise in speech using spectral subtraction , 1979 .

[17]  Philipos C. Loizou,et al.  Speech Enhancement: Theory and Practice , 2007 .

[18]  Te-Won Lee,et al.  Blind Separation of Delayed and Convolved Sources , 1996, NIPS.

[19]  Christof Faller,et al.  Modifying Stereo Recordings Using Acoustic Information Obtained with Spot Recordings , 2005 .

[20]  L. Rayleigh,et al.  XII. On our perception of sound direction , 1907 .

[21]  Matthias Baeck,et al.  REAL-TIME IMPLEMENTATION OF A SOURCE SEPARATION ALGORITHM , 2003 .

[22]  John Mourjopoulos,et al.  Unmixing Acoustic Sources in Real Reverberant Environments for Close-Microphone Applications* , 2010 .

[23]  Daniel P. W. Ellis,et al.  Model-Based Expectation-Maximization Source Separation and Localization , 2010, IEEE Transactions on Audio, Speech, and Language Processing.

[24]  Reinhold Orglmeister,et al.  Blind source separation of real world signals , 1997, Proceedings of International Conference on Neural Networks (ICNN'97).

[25]  Lucas C. Parra,et al.  On-line Convolutive Blind Source Separation of Non-Stationary Signals , 2000, J. VLSI Signal Process..

[26]  Özgür Yilmaz,et al.  Blind separation of disjoint orthogonal signals: demixing N sources from 2 mixtures , 2000, 2000 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.00CH37100).

[27]  Nikolaos Mitianoudis,et al.  Audio source separation of convolutive mixtures , 2003, IEEE Trans. Speech Audio Process..