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    Faculty Profile — Is this you? Login to edit.Last Modified Time: 09:58:53 AM Thu, 26 Aug 2010 
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Philipos C Loizou
Professor-Electrical Engineering
Office MailstopRoom No.: ECSN 4.220 
Email Address    Primary Phone Number 972-883-4617    Fax Number (972) 883-2710    URL Faculty Homepage    Media Contact
 Professional Preparation
 Ph.D.Electrical EngineeringArizona State University in Tempe1995
 M.S.Electrical EngineeringArizona State University1991
 B.S.Electrical EngineeringArizona State University1989
Collapse Section Expand Section Research and Expertise
Research Interests
  • Signal Processing
  • Speech Processing (speech enhancement and noise reduction)
  • Speech Perception (by normal and hearing-impaired listeners)
  • Cochlear Implants
Collapse Section Expand Section Publications
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  YearPublication  Type
Kehtarnavaz, N.,  Gopalakrishna, V. and  Loizou, P. (2012). "Recursive Computation of the Discrete Wavelet Transform" in LabVIEW: A Developer's guide to real-world integration, (Fairweather, I and Brumfield, A., eds.), CRC Press, Chapter 7. 
Hazrati, O. and Loizou, P. (2012). "The combined effects of reverberation and noise on speech intelligibility by cochlear implant listeners," International Journal of Audiology, (in press).[pdf] [Early online].
Hazrati, O. and Loizou, P. (2012). "Tackling the combined effects of reverberation and masking noise using ideal channel selection," J. Speech Lang. Hearing Research., 55, 500-510. [pdf]
Spahr, A., Dorman, M., Litvak, L., Van Wie, S., Gifford, R,  Loizou, P., Loiselle, L.,  Oakes, T. and  Cook, S. (2012).  "Development and validation of the AzBio sentence lists," Ear Hearing, 33(1), 112-117.[link]
Yousefian, N. and Loizou, P.   (2012). "A Dual-Microphone Speech Enhancement Algorithm Based on the Coherence Function," IEEE Trans. Audio, Speech, Language Processing, 20(2), 599-609 [pdf].[Top ten accessed papers in IEEE - as of Dec 2011] [Audio Demos].
Collapse Section Expand Section Presentations and Projects
Start DateEnd DatePresentation/Project
2005 2005 Evaluation of the companding and other noise reduction strategies for cochlear implants
2005 Conference on Implantable Auditory Prostheses, Monterey, CA. P. Loizou, K. Kasturi, L. Turicchia and R. Sarpeshkar (2005).
2001 2001 Noise reduction strategies for cochlear implants
2001 Conference on Implantable Auditory Prostheses, Asilomar, Monterey, CA
2000 2000 Signal processing for cochlear implants and low-rate speech coding
2000 IEEE Workshop on Speech Coding, Delavan, WI, Sept. 2000. (Plenary talk).
12/2001 12/2001 Hot topics on speech communication
142nd Acoustical Society of America Meeting, Ft. Lauderdale, FL, Dec. 2001.
06/2001 06/2001 Acoustic simulations of cochlear implants
Frontiers in Mathematical and Computational Biology, Dallas, TX, June 2001.
Collapse Section Expand Section Appointments
DurationRankDepartment / SchoolCollege / OfficeUniversity / Company
2004-PresentProfessorDepartment of Electrical Engineering The University of Texas at Dallas
2001-2002Associate Department Head and EE Division HeadDepartment of Electrical Engineering The University of Texas at Dallas
1999-2004Associate ProfessorDepartment of Electrical Engineering The University of Texas at Dallas
1996-1999Assistant ProfessorDepartment of Applied Sciences University of Arkansas at Little Rock
1995-1996Post-doctorial Research FellowDepartment of Speech and Hearing Sciences Arizona State University
1991-1995Research AssistantDepartment of Electrical Engineering Arizona State University
 News Articles
NIH Grant Enables Cochlear Implant Breakthrough

Many cochlear implant users may soon be able to easily modify the settings on their hearing devices using a smartphone interface, selecting one setting for a bustling restaurant, another for a hushed library. Read More...

Cochlear Implant Pioneer, Professor Lost to Cancer
UT Dallas News Center

Loizou, a pioneer in the field of hearing aid and speech enhancement, died Sunday of cancer. He was 46. 
Loizou was an internationally known leader in signal and speech processing, speech perception and cochlear implants – electronic medical devices attached to the inner ear of profoundly deaf people that send sound signals to the brain. His algorithms also helped improve the performance of cochlear implants by programming the devices to operate more effectively in a range of listening conditions.
A Cecil H. and Ida Green Professor in Systems Biology Science, Loizou developed an interface that enables smartphones and personal digital assistants, or PDAs, to process acoustic signals, such as speech, through a microphone worn behind an individual’s ear. It sends the processed signals to electrodes implanted in the inner ear. This interface was approved by the Food and Drug Administration, and Loizou was overseeing a clinical trial on the interface. At the time of his death, he was also working on basic scientific research with animals, looking at how the auditory system reacts to electrical stimulation.

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 Additional Information
Senior Member, IEEE

Honors and Awards
  • Fellow of Acoustical Society of America
  • National Institutes of Health (NIH) Shannon award (1998)
  • Member of NIH Grant Review Panel (AUD Study Section), 2006-2010
  • Cited in Who's Who in Science and Engineering (1998)
  • F.V. Hunt Research Fellowship by the Acoustical Society of America (1996)
  • Intel award for "contributing to the development of the 60172 processor architecture" (1992)
  • Member of honorary societies: Eta Kappa Nu, Phi Kappa Phi, Sigma Pi Sigma

More About Me
Dr. Loizou is a Fellow of the Acoustical Society of America. He is currently serving as an appointed member of the Auditory System (AUD) Study Section at NIH reviewing R01 applications on the structure and function of the auditory and vestibular systems. He is currently an Associate Editor of the IEEE Transactions on Biomedical Engineering and International Journal of Audiology. He was an Associate Editor of the IEEE Transactions on Speech and Audio Processing  (1999-2002), IEEE Signal Processing Letters (2006-2009),  and is currently a member of the Speech Technical Committee of the IEEE Signal Processing Society.

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