2007

        Loizou, P. (2007). Speech Enhancement: Theory and Practice, CRC Press, Boca Raton: FL. [Table of contents]

        Hu, Y. and Loizou, P. (2007). “A comparative intelligibility study of single-microphone noise reduction algorithms,”  Journal of Acoustical Society of America, 122(3), 1777–1786. [pdf]

        Li, N. and Loizou, P. (2007). “Factors influencing glimpsing of speech in noise,”  Journal of Acoustical Society of America, 122(2), 1165-1172.[pdf]

        Kasturi, K. and Loizou, P. (2007). “Effect of frequency spacing on melody recognition: Acoustic and electric hearing,” Journal of Acoustical Society of America, 122(2), EL29-EL34.[pdf]

        Hu, Y., Loizou, P., Li, N. and Kasturi, K. (2007).  “Use of a sigmoidal-shaped function for noise attenuation in cochlear implants,” Journal of Acoustical Society of America,  122(4), EL128-EL134. [pdf]

        Hu, Y. and Loizou, P. (2007). “Subjective evaluation and comparison of speech enhancement algorithms,” Speech Communication, 49, 588-601. [pdf]

       Bin, C. and Loizou, P. (2007). “A Laplacian-based MMSE estimator for speech enhancement,” Speech Communication, 49, 134-143. [pdf]

       Kasturi, K. and Loizou, P. (2007). “Use of S-Shaped Input-Output Functions for Noise Suppression in Cochlear Implants,” Ear and Hearing, 28(3), 402-411. [pdf]

2006

Loizou, P. (2006). "Speech processing in vocoder-centric cochlear implants," Cochlear and Brainstem Implants (ed. Moller, A.), Adv. Otorhinolaryngol. Basel, Karger,  64, 109–143. [Review paper: pdf]

Stickney, G., Loizou, P., Mishra, L., Assmann, P., Shannon, R. and Opie, J. (2006). "Effects of electrode design and configuration on channel interactions." Hearing Research, 211, 33-45. [pdf]

Rangachari, S. and  Loizou, P.   (2006).  “A noise estimation algorithm for highly non-stationary environments,” Speech Communication, 28, 220-231 [pdf]

2005

Parikh, G. and Loizou, P. (2005). "The influence of noise on vowel and consonant cues," Journal of Acoustical Society of America, 118(6), 3874-3888.  (download a copy)

Loizou, P., Lobo, A. and Hu, Y. (2005)."Subspace algorithms for noise reduction in cochlear implants," Journal of Acoustical Society of America, 118(5), 2791-2793. (download a copy)

Dorman, M., Spahr, A., Loizou, P. Dana, C and Schmidt, J. (2005). "Acoustic simulations of combined electric and acoustic hearing (EAS)," Ear and Hearing, 26(4), 371-380.(download a copy) 

   Loizou, P. (2005). “Speech enhancement based on perceptually motivated Bayesian estimators of the speech magnitude spectrum,” IEEE Transactions on Speech and Audio Processing, 13(5), 857-869. [pdf]

 Kasturi, K. and Loizou, P. (2005). "Optimizing virtual channel selection," 2005 Conference on Implantable Auditory Prostheses, Asilomar, Monterey, CA. (download a copy) 

Kasturi, K. and Loizou, P. (2005). "Effect of Filter spacing and correct tonotopic representation on melody recognition: Implications for cochlear implants," Proceedings of ARO, New Orleans, LA. (download a copy)

2004

A. Mani, P. Loizou, A. Shoup, P. Roland and P. Kruger (2004). “Dichotic speech recognition by bilateral cochlear implant users,” in Cochlear Implants, International Congress Series 1273, ed. R. Miyamoto, Elsevier Science, 466-469 (download a copy)

 Y. Hu and P. Loizou (2004). “Incorporating a psychoacoustic model in frequency domain speech enhancement,” IEEE Signal Processing Letters, 11(2),  270-273.

Hu, Y. and Loizou, P.  (2004). "Speech enhancement by wavelet thresholding the multitaper spectrum," IEEE Transactions on Speech and Audio Processing, 12(1), 59-67.

2003

Y. Hu and P. Loizou (2003) “A generalized subspace approach for enhancing speech corrupted with colored noise,” IEEE Transactions on Speech and Audio Processing, 11(4), 334-341.

 Y. Hu and P. Loizou (2003). “A perceptually motivated approach for speech enhancement,” IEEE Transactions on Speech and Audio Processing, 11(5), 457-465.

H. Qian and P. Loizou (2003). “A phone-assistive device based on Bluetooth technology for cochlear implant users,” IEEE Transactions on Neural Systems and Rehabilitation Engineering. (download a copy )

P. Loizou, V. Mani and M. Dorman (2003). “Dichotic speech recognition in noise using reduced spectral cues,” Journal of Acoustical Society of America, 114(1), 475-483.

W.  Katz, S. Bharadwaj, G. Gabbert, P. Loizou, E. Tobey and O. Poroy (2003). "EMA compatibility of the Clarion 1.2 cochlear implant system,"  Acoustics Research Letters Online,  4 (3), 100-105.

 P. Loizou, G. Stickney, L. Mishra and P. Assmann (2003). “Comparison of speech processing strategies used in the Clarion implant processor,” Ear and Hearing, 24(1), 12-19  [pdf]

Toledo, F.; Loizou, P.; Lobo, A.(2003). Subspace and envelope subtraction algorithms for noise reduction in cochlear implants," Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 3, 2002 - 2005. [pdf]

 

2002
K. Kasturi, P. Loizou, M. Dorman and T. Spahr (2002). "The intelligibility of speech with holes in the spectrum",  J. Acoust. Soc. Am., 112(3). (download a copy )

A. Lobo, F. Toledos, P. Loizou and M. Dorman (2002). "The effect of envelope low-pass filtering on melody recognition," 33rd Neural Prosthesis Workshop, Bethesda, MD, October 2002. (download a copy )

M. Dorman, P. Loizou, To. Spahr and E. Maloff (2002). "A Comparison of the Speech Understanding Provided by Acoustic Models of Fixed-Channel and Channel-Picking Signal Processors for Cochlear Implants,"  Journal of Speech, Language and Hearing Research, 45, (download a copy ).

2001

P. Loizou and O. Poroy (2001). "Minimum spectral contrast needed for vowel identification by normal-hearing and cochlear implant listeners," J. Acoust. Soc. Am., 110(3), 1619-1627. (download a copy )

C. Chang, G. Anderson and P. Loizou (2001). "A neural network model for optimizing vowel recognition by cochlear implant listeners," IEEE Transactions on Neural Systems and Rehabilitation Engineering . (download a copy )

P. Assmann and P. Loizou (2001). "Hot topics on speech communication" 142nd ASA Meeting, Dec. 2001 ( download a copy )

H. Qian, O. Poroy and P. Loizou (2001). "A Bluetooth-based wireless phone adapter for cochlear implant users" presented at the 2001 Conference on Implantable Auditory Prostheses, Asilomar, Monterey, CA. (download a copy in pdf format)

M. Dorman, P. Loizou, T. Spahr, E. Maloff and S. Wie (2001). "Speech understanding with dichotic presentation of channels: Results from acoustic models of binaural cochlear implants" presented at the 2001 Conference on Implantable Auditory Prostheses, Asilomar, Monterey, CA. (download a copy in pdf format)

O. Poroy and P. Loizou (2001). "Pitch perception of virtual channels" presented at the 2001 Conference on Implantable Auditory Prostheses, Asilomar, Monterey, CA. (download a copy in pdf format)

P. Loizou and O. Poroy (2001). "Issues in the implementation of the CIS strategy" presented at the 2001 Conference on Implantable Auditory Prostheses, Asilomar, Monterey, CA. (download a copy in pdf format)

P. Loizou and O. Poroy (2001). "Noise reduction strategies for cochlear" implants," presented at the 2001 Conference on Implantable Auditory Prostheses, Asilomar, Monterey, CA.[Invited paper]

M. Svirsky and P. Loizou (2001). Protesis cocleares, La Cochlea, Fisiologia y Patologia, (H. Suarez and R. Velluti, eds.), Ediciones Trilce, Montevideo, Uruguay.

2000

P. Loizou, M. Dorman, O. Poroy and T. Spahr (2000)."Speech recognition by normal-hearing and cochlear implant listeners as a function of intensity resolution," Journal of Acoustical Society of America , 108(5), 2377-2388. (download a copy in pdf format)

P. Loizou, O. Poroy and M. Dorman (2000)."The effect of parametric variations of cochlear implant processors on speech understanding," Journal of Acoustical Society of America , 108(2), 790-802. (download a copy in pdf format)

P. Loizou, M. Dorman and J. Fitzke (2000). "The effect of reduced dynamic range on speech understanding: Implications for patients with cochlear implants," Ear and Hearing, 21(1), 25-31. (download a copy in pdf format)

Loizou, P., Dorman, M., Z. Tu and J. Fitzke (2000). “The recognition of sentences in noise by normal-hearing listeners using simulations of SPEAK-type cochlear implant processors," Annals of Otology, Rhinology and Laryngology, 109(12), Suppl. 185, 67-68. (Download a copy in pdf format)

Dorman, M., Loizou, P., J. Fitzke, and Tu, Z. (2000).“The recognition of monosyllabic words by cochlear implant patients and by normal-hearing subjects listening to words processed through cochlear implant signal processing strategies" Annals of Otology, Rhinology and Laryngology, 109(12), Suppl. 185, 64-66 (Download a copy in pdf format)

G. Stickney, P. Loizou, L. Mishra, P. Assmann, R. Shannon, and J. Opie. (2000). "Channel interaction and speech processing strategies for cochlear implants," Journal of Acoustical Society of America , 108(5), Pt. 2, 2601. (download a copy in pdf format)

O. Poroy and P. Loizou (2000). "Development of a speech processor for laboratory experiments with cochlear implant patients," Proceedings of IEEE ICASSP-2000 , Instabul, Turkey. (download a copy in pdf format)

Loizou, P. (1999). "Introduction to cochlear implants," IEEE Engineering in Medicine and Biology Magazine,18(1), 32-42.

Loizou, P. (1999). "Signal-processing techniques for cochlear implants," IEEE Engineering in Medicine and Biology Magazine,18(3), 34-46.

P. Loizou, M. Dorman, Z. Tu (1999). "On the number of channels needed to understand speech," Journal of Acoustical Society of America, 106(4), 2097-2103. ( download a copy in pdf format)

P. Loizou and O. Poroy (1999). "A parametric study of the CIS strategy" presented at the 1999 Conference on Implantable Auditory Prostheses, Asilomar, Monterey, CA. (download a copy in pdf format)

O. Poroy and P. Loizou (1999). "Minimum spectral contrast for vowel identification in CIS-type processors," presented at the 1999 Conference on Implantable Auditory Prostheses, Asilomar, Monterey, CA. (download a copy in pdf format)

Loizou, P. (1998). "Mimicking the human ear," IEEE Signal Processing Magazine,15(5), 101-130.

Loizou, P. and Liu, X. (1998). "Improving vowel recognition in noise using the CIS strategy," 29th Neural Prosthesis Workshop, Bethesda, MD. ( Download a copy in pdf format)

Loizou, P., Dorman, M. and Powell, V. (1998). “The recognition of vowels produced by men, women, boys and girls by cochlear implant patients using a six-channel CIS processor,” Journal of the Acoustical Society of America,103(2), 1141-1149.  (Download a copy in pdf format)

Dorman, M., Loizou, P.,Fitzke, J. and Tu, Z. (1998). “The recognition of sentences in noise by normal-hearing listeners using simulations of cochlear- implant signal processors with 6-20 channels,” Journal of the Acoustical Society of America,104(6), 3583-3585.

Dorman, M.  and Loizou, P. (1998). “The identification of consonants and vowels by cochlear implants patients using a 6-channel CIS processor and by normal hearing listeners using simulations of processors with two to nine channels,” Ear and Hearing, 19, 162-166.

Dorman, M.  Loizou, P. and Fitzke, J. (1998). “The identification speech in noise by cochlear implant patients and normal-hearing listeners using 6-channel signal processors,” Ear and Hearing, 19(6), 481-484.

P. Loizou, S. Graham, J. Dickins, M. Dorman and O. Poroy (1997). "Comparing the performance of the SPEAK strategy (Spectra 22) and the CIS strategy (Med-El) in quiet and in noise," presented at the 1997 Conference on Implantable Auditory Prostheses, Asilomar, Monterey, CA. (download a copy in pdf format)

 P. Loizou (1997). "Signal processing for cochlear prosthesis: A tutorial review," 40th Midwest Symposium on Circuits and Systems, Sacramento, CA. (download a copy in pdf format).

 M. Dorman, P. Loizou, R. Shannon and S. Brill (1997). "Converging evidence from simulations and patients on the number of channels necessary for high levels of speech understanding," presented at the 1997 Conference on Implantable Auditory Prostheses, Asilomar, Monterey, CA.

M. Dorman and P. Loizou (1997). "Changes in speech intelligibility as a function of time and signal processing strategy for an Ineraid patient fitted with CIS processors," Ear and Hearing, 18, 148-155.

 M. Dorman and P. Loizou (1997). "Mechanisms of vowel recognition for Ineraid patients fit with CIS processors," Journal of Acoustical Society of America,102, 581-587.

 M. Dorman, P. Loizou and D. Rainey (1997). "Speech intelligibility as a function of the number of channels of stimulation for signal processors using sine-wave and noise-band outputs," Journal of Acoustical Society of America, 102(4), 2403-2411.

 M. Dorman, P. Loizou and D. Rainey (1997). "Simulating the effect of cochlear-implant electrode insertion depth on speech understanding," Journal of Acoustical Society of America, 102(5), 2993-2996.

 M. Dorman and P. Loizou (1997). "Speech intelligibility as a function of the number of channels of stimulation for normal and cochlear implant patients," American Journal of Otology, 18 (6), (Suppl.), S113-S114.