Enhancement of Speech Auditory Brainstem Responses Using Adaptive Filters

.............................................................................................................................. ii List of Figures .................................................................................................................... vi List of Tables ....................................................................................................................... x List of Acronyms ................................................................................................................ xi List of Symbols ................................................................................................................. xiii CHAPTER 1: Introduction ................................................................................................. 1 1.1 Motivation ............................................................................................................ 1 1.2 Thesis Outline ...................................................................................................... 3 CHAPTER 2: Background .................................................................................................. 5 2.1 The Auditory Nervous System ............................................................................. 5 2.1.1 Ascending auditory pathway ......................................................................... 5 2.1.2 Descending auditory pathway ....................................................................... 6 2.2 Speech Auditory Brainstem Responses ................................................................ 6 2.3 Time Series Analysis .......................................................................................... 10 2.3.1 Stationarity .................................................................................................. 10 2.3.2 Correlation function .................................................................................... 10 2.4 Optimal Filters .................................................................................................... 11 2.4.1 The Wiener Filter ........................................................................................ 11 2.4.2 The Maximum SNR Filter .......................................................................... 14 2.4.3 The Kalman Filter ....................................................................................... 14 2.5 Adaptive Filters .................................................................................................. 16 2.5.1 Method of Least-mean-square (LMS) ........................................................ 16 2.5.2 Method of Least Square (LS) ...................................................................... 17

[1]  Terence W Picton,et al.  Weighted averaging of steady-state responses , 2001, Clinical Neurophysiology.

[2]  Hilmi R. Dajani,et al.  Recording human evoked potentials that follow the pitch contour of a natural vowel , 2005, IEEE Transactions on Biomedical Engineering.

[3]  B. Farhang-Boroujeny,et al.  Adaptive Filters: Theory and Applications , 1999 .

[4]  Erika Skoe,et al.  Brainstem encoding of voiced consonant–vowel stop syllables , 2008, Clinical Neurophysiology.

[5]  K. Hecox,et al.  Nonlinear system identification by m-pulse sequences: application to brainstem auditory evoked responses , 1991, IEEE Transactions on Biomedical Engineering.

[6]  Terence W. Picton,et al.  The use of phase in the detection of auditory steady-state responses , 2001, Clinical Neurophysiology.

[7]  J. J. Westerkamp,et al.  Adaptive estimation and detection of evoked potentials , 1989, Images of the Twenty-First Century. Proceedings of the Annual International Engineering in Medicine and Biology Society,.

[8]  Frederick E. Petry,et al.  Principles and Applications , 1997 .

[9]  D. Regan.  Human brain electrophysiology: Evoked potentials and evoked magnetic fields in science and medicine , 1989 .

[10]  M. Laroche.  A Study of Auditory Speech Processing using Brainstem Evoked Responses under Quiet and Noisy Conditions , 2011 .

[11]  Jacob Benesty,et al.  Single-Channel Noise Reduction with a Filtering Vector , 2011 .

[12]  Jelena Kovacevic,et al.  Adaptive complex wavelet-based filtering of EEG for extraction of evoked potential responses , 2005, Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005..

[13]  Fan Yang,et al.  Research on a new method of preprocessing and speech synthesis pitch detection , 2010, 2010 International Conference On Computer Design and Applications.

[14]  Kathy R Vander Werff,et al.  Brain Stem Responses to Speech in Younger and Older Adults , 2011, Ear and hearing.

[15]  H. R. Dajani,et al.  Objective measurement of physiological signal-to-noise gain in the brainstem response to a synthetic vowel , 2013, Clinical Neurophysiology.

[16]  Ananthanarayan Krishnan,et al.  Human frequency-following responses: representation of steady-state synthetic vowels , 2002, Hearing Research.

[17]  Terence W. Picton,et al.  Envelope Following Responses to Natural Vowels , 2006, Audiology and Neurotology.

[18]  R. Fay,et al.  Speech Processing in the Auditory System , 2010, Springer Handbook of Auditory Research.