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

Hu, Y. and Loizou, P. (2006). “Evaluation of objective measures for speech enhancement, Proceedings of INTERSPEECH-2006, Philadelphia, PA, September 2006.

Hu, Y. and Loizou, P.  (2006). “Subjective Comparison of Speech Enhancement Algorithms,” in Proc. IEEE Int. Conf. Acoust., Speech, Signal Processing., Toulouse, France. [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.  [pdf]

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]

Chen, B. and Loizou, P. (2005). "Speech enhancement using a MMSE short-time spectral amplitude estimator with Laplacian speech modeling," Proceedings of ICASSP-2005, Philadelphia, PA, May 2005. [pdf]

     2004

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

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. [pdf]

S. Rangachari, P. Loizou and  Y.  Hu (2004).  “A noise estimation algorithm with rapid adaptation for highly non-stationary environments,” Proceedings of ICASSP-2004, Montreal, Canada, May 2004, 305-308.[pdf]

 B. Chen and P. Loizou (2004), “Formant frequency estimation in noise,” Proceedings of ICASSP-2004, Montreal, Canada, May 2004, 581-584. [pdf]

     2003

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.[pdf]

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

 A. Lobo, and P. Loizou (2003). "Voiced/unvoiced speech discrimination in noise using Gabor atomic decomposition,”, Proc. IEEE International Conference on Acoustics, Speech and Signal Processing, I, 820-823.[pdf]

 F. Toledos, P. Loizou and A. Lobo  (2003). “Subspace and Envelope Subtraction Algorithms for Noise Reduction in Cochlear Implants,” IEEE Conference in Engineering in Medicine and Biology, Cancun, Mexico, 1999-2001.[pdf]

     2002

Y. Hu and P. Loizou (2002), “A subspace approach for enhancing speech corrupted with colored noise,” IEEE Signal Processing Letters, 9(7), 204-206.

Y. Hu and P. Loizou, "Perceptually  motivated subspace approach for speech enhancement ", in Proc. Inter. Conf. on Spoken Language Processing (ICSLP), pp. 1797-1800, 2002.

Hu, Y. and Loizou, P. (2002). “A subspace approach for enhancing speech corrupted with colored noise, “ Proceedings of  ICASSP-2002, Orlando, FL, May 2002.

Kamath, S. and Loizou, P. (2002). “A multi-band spectral subtraction method for enhancing speech corrupted by colored noise, “ Proceedings of  ICASSP-2002, Orlando, FL, May 2002.

Bharath Siravara, Neeraj Magotra and Philip Loizou (2002). "A Novel Approach for Single Microphone Active Noise Cancellation," 45th IEEE MWSCAS Conference , August 4-7, 2002 - Tulsa, Oklahoma

2000

Yeary, M. and Loizou, P. (2000). “Adaptive filtering for speech enhancement, “ Ninth DSP Workshop, Hunt, TX, Oct.2000.

Poroy, O. and Loizou, P. (2000). “Development of a speech processor for laboratory experiments with cochlear implant patients,” Proceedings of IEEE ICASSP-2000, Istanbul, Turkey, June 2000.

M. Dorman, P. Loizou, T. Spahr and E. Maloff (2000). “Performance of spectral-maxima and fixed-channel algorithms for coding speech in quiet and in noise,” Ninth DSP Workshop, Hunt, TX, Oct. 2000.

  -1999

P. Loizou and A. Spanias (1999). "Improved speech recognition using a subspace projection approach," IEEE Transactions on Speech and Audio Processing, vol.7, no. 3, pp. 343-345. ( Download a copy )

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

Z. Tu and P. Loizou (1999). "Speech recognition over the Internet using Java," IEEE International Conference on Acoustics, Speech and Signal Processing,vol. 4, pp. 2367-2370, Phoenix, AZ.

 P. Loizou and A. Spanias (1996). "High-performance alphabet recognition," IEEE Transactions on Speech and Audio Processing 4, 430-445.

P. Loizou and A. Spanias (1997). "Improving discrimination of confusable words using the divergence measure," Journal of Acoustical Society of America 101(2), 1106-1111.

 P. Loizou, M. Dorman and A. Spanias (1995), "Automatic recognition of syllable-final nasals preceded by /eh/ ," Journal of Acoustical Society of America 97, pp. 1925-1928.

 P. Loizou, M. Dorman, and V. Powell (1998). "The recognition of vowels produced by men, women, boys and girls by cochlear implant patients using a 6 channel CIS processor," Journal of Acoustical Society of America, 103(2), 1141-1149.

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

 M. Dorman and P. Loizou (1996). "Relative spectral change and formant transitions as cues to labial and alveolar place of articulation," Journal of Acoustical Society of America 100, 3825-3830.

P. Loizou, Robust Speaker-Independent Recognition of a Confusable Vocabulary , Ph.D. Thesis, Arizona State University, 1995. ( download a copy in postscript format)

P. Loizou, M. Deisher, A. Spanias, G. Lim and B. Mears (1994) "A new highly integrated architecture for speech processing and communications applications," Intel Technology Journal, pp. 41-56.

A. Spanias and P. Loizou (1993) "Analysis/synthesis of speech using the short-time Fourier transform and a time-varying ARMA process," IEICE Transactions of Electronics, Communications and Computer Sciences, E76-A, pp. 645-652.

A. Spanias and P. Loizou (1992) "Mixed Fourier/Walsh transform scheme for speech coding at 4.0 kbits/s," IEE Proceedings 139, pp. 473-481. 

P. Loizou and A. Spanias (1995) "Improved speech recognition using the weighted average divergence measure," Proceedings of the International Conference on Digital Signal Processing 1, pp. 90-95.

 P. Loizou, M. Dorman, and A. Spanias (1995) "Techniques for improved stop and nasal consonant discrimination" 130th Meeting of Acoustical Society of America,

P. Loizou and A. Mekkoth and A. Spanias (1995) "Telephone alphabet recognition for name-retrieval applications", International Conference on Signal Processing Applications and Technology

P. Loizou and A. Spanias (1994), "Context-dependent modeling in alphabet recognition," Proceedings of the IEEE International Symposium on Circuits and Systems, pp. 189-192.

I. Gdoura, P. Loizou and A. Spanias (1993) "Speech processing using higher order statistics," Proceedings of the IEEE International Symposium on Circuits and Systems, pp. 160-163.

A. Spanias, G. Lim, P. Loizou and M. Deisher (1992) "Block time and frequency domain modified covariance algorithms ," Proceedings of the IEEE International Conference on Acoustics,Speech and Signal Processing 5, pp. 529-532.

P. Loizou and A. Spanias (1991) "Low rate speech representations by vector quantizing transform components," Proceedings of the IEEE International Symposium on Circuits and Systems 1, pp. 320-323.

P. Loizou and A. Spanias (1991) "Vector quantization of transform components at 1200 BPS," Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, pp. 245-248.

P. Loizou and A. Spanias (1990) "Vector quantization of principal spectral components at 4800 BPS," Proceedings of 24th Asilomar Conference on Signals, Systems and Computers, pp. 654-658.