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Philipos Loizou

Research Profile

Physiology

Devices

Cochlear Implants

Phenomena

Noise

Concepts & Ideas

Procedures

Occupations

Phonetics

Activities & Behaviors

Disorders

Deafness

Living Beings

Hearing Impaired Persons

Co-author Network

Publications

TOP 3
Oldooz Hazrati; Philipos C Loizou
Comparison of two channel selection criteria for noise suppression in cochlear implants.
Oldooz Hazrati; Jaewook Lee; Philipos C Loizou
Blind binary masking for reverberation suppression in cochlear implants.
Nima Yousefian; Philipos C Loizou
Predicting the speech reception threshold of cochlear implant listeners using an envelope-correlation based measure.

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All Publications

2013: Oldooz Hazrati; Philipos C Loizou
Comparison of two channel selection criteria for noise suppression in cochlear implants.
The Journal of the Acoustical Society of America 2013;133(3):1615-24.
2013: Oldooz Hazrati; Jaewook Lee; Philipos C Loizou
Blind binary masking for reverberation suppression in cochlear implants.
The Journal of the Acoustical Society of America 2013;133(3):1607-14.
2012: Nima Yousefian; Philipos C Loizou
Predicting the speech reception threshold of cochlear implant listeners using an envelope-correlation based measure.
The Journal of the Acoustical Society of America 2012;132(5):3399-405.
2012: Vanishree Gopalakrishna; Nasser Kehtarnavaz; Taher S Mirzahasanloo; Philipos C Loizou
Real-time automatic tuning of noise suppression algorithms for cochlear implant applications.
IEEE transactions on bio-medical engineering 2012;59(6):1691-700.
2012: Oldooz Hazrati; Philipos C Loizou
The combined effects of reverberation and noise on speech intelligibility by cochlear implant listeners.
International journal of audiology 2012;51(6):437-43.
2012: Fei Chen; Philipos C Loizou
Contributions of cochlea-scaled entropy and consonant-vowel boundaries to prediction of speech intelligibility in noise.
The Journal of the Acoustical Society of America 2012;131(5):4104-13.
2012: Kamil K Wójcicki; Philipos C Loizou
Channel selection in the modulation domain for improved speech intelligibility in noise.
The Journal of the Acoustical Society of America 2012;131(4):2904-13.
2012: Oldooz Hazrati; Philipos C Loizou
Tackling the combined effects of reverberation and masking noise using ideal channel selection.
Journal of speech, language, and hearing research : JSLHR 2012;55(2):500-10.
2012: Hussnain Ali; Arthur P Lobo; Philipos C Loizou
On the design and evaluation of the PDA-based research platform for electric and acoustic stimulation.
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2012;2012():2493-6.
2011: Rithika Saripella; Linda Thibodeau; Philipos C Loizou; Jennifer A Alford
The effects of selective consonant amplification on sentence recognition in noise by hearing-impaired listeners.
The Journal of the Acoustical Society of America 2011;130(5):3028-37.
2011: Gibak Kim; Philipos C Loizou
Gain-induced speech distortions and the absence of intelligibility benefit with existing noise-reduction algorithms.
The Journal of the Acoustical Society of America 2011;130(3):1581-96.
2011: Kostas Kokkinakis; Philipos C Loizou
The impact of reverberant self-masking and overlap-masking effects on speech intelligibility by cochlear implant listeners (L).
The Journal of the Acoustical Society of America 2011;130(3):1099-102.
2011: Philipos C Loizou; Jianfen Ma
Extending the articulation index to account for non-linear distortions introduced by noise-suppression algorithms.
The Journal of the Acoustical Society of America 2011;130(2):986-95.
2011: Junfeng Li; Lin Yang; Jianping Zhang; Yonghong Yan; Yi Hu; Masato Akagi; Philipos C Loizou
Comparative intelligibility investigation of single-channel noise-reduction algorithms for Chinese, Japanese, and English.
The Journal of the Acoustical Society of America 2011;129(5):3291-301.
2011: Fei Chen; Philipos C Loizou
Predicting the intelligibility of vocoded and wideband Mandarin Chinese.
The Journal of the Acoustical Society of America 2011;129(5):3281-90.
2011: Kostas Kokkinakis; Oldooz Hazrati; Philipos C Loizou
A channel-selection criterion for suppressing reverberation in cochlear implants.
The Journal of the Acoustical Society of America 2011;129(5):3221-32.
2011: Fei Chen; Philipos C Loizou
Predicting the intelligibility of vocoded speech.
Ear and hearing 2011;32(3):331-8.
2011: Hussnain Ali; Arthur P Lobo; Philipos C Loizou
A PDA platform for offline processing and streaming of stimuli for cochlear implant research.
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2011;2011():1045-8.
2010: Fei Chen; Philipos C Loizou
Analysis of a simplified normalized covariance measure based on binary weighting functions for predicting the intelligibility of noise-suppressed speech.
The Journal of the Acoustical Society of America 2010;128(6):3715-23.
2010: Yi Hu; Philipos C Loizou
Effects of introducing low-frequency harmonics in the perception of vocoded telephone speech.
The Journal of the Acoustical Society of America 2010;128(3):1280-9.
2010: Ning Li; Philipos C Loizou
Masking release and the contribution of obstruent consonants on speech recognition in noise by cochlear implant users.
The Journal of the Acoustical Society of America 2010;128(3):1262-71.
2010: Vanishree Gopalakrishna; Nasser Kehtarnavaz; Philipos C Loizou
A recursive wavelet-based strategy for real-time cochlear implant speech processing on PDA platforms.
IEEE transactions on bio-medical engineering 2010;57(8):2053-63.
2010: Yi Hu; Philipos C Loizou
Environment-specific noise suppression for improved speech intelligibility by cochlear implant users.
The Journal of the Acoustical Society of America 2010;127(6):3689-95.
2010: Kostas Kokkinakis; Philipos C Loizou
Multi-microphone adaptive noise reduction strategies for coordinated stimulation in bilateral cochlear implant devices.
The Journal of the Acoustical Society of America 2010;127(5):3136-44.
2010: Fei Chen; Philipos C Loizou
Contribution of consonant landmarks to speech recognition in simulated acoustic-electric hearing.
Ear and hearing 2010;31(2):259-67.
2010: Vanishree Gopalakrishna; Nasser Kehtarnavaz; Philipos C Loizou; Issa M S Panahi
Real-time automatic switching between noise suppression algorithms for deployment in cochlear implants.
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2010;2010():863-6.
2010: Yi Hu; Philipos C Loizou
On the importance of preserving the harmonics and neighboring partials prior to vocoder processing: implications for cochlear implants.
The Journal of the Acoustical Society of America 2010;127(1):427-34.
2009: Gibak Kim; Yang Lu; Yi Hu; Philipos C Loizou
An algorithm that improves speech intelligibility in noise for normal-hearing listeners.
The Journal of the Acoustical Society of America 2009;126(3):1486-94.
2009: Ning Li; Philipos C Loizou
Factors affecting masking release in cochlear-implant vocoded speech.
The Journal of the Acoustical Society of America 2009;126(1):338-46.
2009: Jianfen Ma; Yi Hu; Philipos C Loizou
Objective measures for predicting speech intelligibility in noisy conditions based on new band-importance functions.
The Journal of the Acoustical Society of America 2009;125(5):3387-405.
2009: Kostas Kokkinakis; Philipos C Loizou
Selective-tap blind signal processing for speech separation.
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2009;2009():3150-3.
2009: Philipos C Loizou; Yi Hu; Ruth Litovsky; Gongqiang Yu; Robert Peters; Jennifer Lake; Peter Roland
Speech recognition by bilateral cochlear implant users in a cocktail-party setting.
The Journal of the Acoustical Society of America 2009;125(1):372-83.
2008: Ning Li; Philipos C Loizou
The contribution of obstruent consonants and acoustic landmarks to speech recognition in noise.
The Journal of the Acoustical Society of America 2008;124(6):3947.
2008: William B Cooper; Emily A Tobey; Philipos C Loizou
Music perception by cochlear implant and normal hearing listeners as measured by the Montreal Battery for Evaluation of Amusia.
Ear and hearing 2008;29(4):618-26.
2008: Yi Hu; Philipos C Loizou
A new sound coding strategy for suppressing noise in cochlear implants.
The Journal of the Acoustical Society of America 2008;124(1):498-509.
2008: Mohamed Bingabr; Blas Espinoza-Varas; Philipos C Loizou
Simulating the effect of spread of excitation in cochlear implants.
Hearing research 2008;241(1-2):73-9.
2008: Kostas Kokkinakis; Philipos C Loizou
Using blind source separation techniques to improve speech recognition in bilateral cochlear implant patients.
The Journal of the Acoustical Society of America 2008;123(4):2379-90.
2008: Ning Li; Philipos C Loizou
A glimpsing account for the benefit of simulated combined acoustic and electric hearing.
The Journal of the Acoustical Society of America 2008;123(4):2287-94.
2008: Ning Li; Philipos C Loizou
Effect of spectral resolution on the intelligibility of ideal binary masked speech.
The Journal of the Acoustical Society of America 2008;123(4):EL59-64.
2008: Ning Li; Philipos C Loizou
Factors influencing intelligibility of ideal binary-masked speech: implications for noise reduction.
The Journal of the Acoustical Society of America 2008;123(3):1673-82.
2007: Yi Hu; Philipos C Loizou; Ning Li; Kalyan Kasturi
Use of a sigmoidal-shaped function for noise attenuation in cochlear implants.
The Journal of the Acoustical Society of America 2007;122(4):EL128-34.
2007: Yi Hu; Philipos C Loizou
A comparative intelligibility study of single-microphone noise reduction algorithms.
The Journal of the Acoustical Society of America 2007;122(3):1777.
2007: Ning Li; Philipos C Loizou
Factors influencing glimpsing of speech in noise.
The Journal of the Acoustical Society of America 2007;122(2):1165-72.
2007: Kalyan Kasturi; Philipos C Loizou
Effect of filter spacing on melody recognition: acoustic and electric hearing.
The Journal of the Acoustical Society of America 2007;122(2):EL29-34.
2007: Kalyan Kasturi; Philipos C Loizou
Use of S-shaped input-output functions for noise suppression in cochlear implants.
Ear and hearing 2007;28(3):402-11.
2006: Philipos C Loizou
Speech processing in vocoder-centric cochlear implants.
Advances in oto-rhino-laryngology 2006;64():109-43.
2006: Ginger S Stickney; Philipos C Loizou; Lakshmi N Mishra; Peter F Assmann; Robert V Shannon; Jane M Opie
Effects of electrode design and configuration on channel interactions.
Hearing research 2006;211(1-2):33-45.
2005: Gaurang Parikh; Philipos C Loizou
The influence of noise on vowel and consonant cues.
The Journal of the Acoustical Society of America 2005;118(6):3874-88.
2005: Philipos C Loizou; Arthur Lobo; Yi Hu
Subspace algorithms for noise reduction in cochlear implants.
The Journal of the Acoustical Society of America 2005;118(5):2791-3.
2005: Michael F Dorman; Anthony J Spahr; Philipos C Loizou; Cindy J Dana; Jennifer S Schmidt
Acoustic simulations of combined electric and acoustic hearing (EAS).
Ear and hearing 2005;26(4):371-80.
2003: Haifeng Qian; Philipos C Loizou; Michael F Dorman
A phone-assistive device based on Bluetooth technology for cochlear implant users.
IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society 2003;11(3):282-7.
2003: Philipos C Loizou; Arunvijay Mani; Michael F Dorman
Dichotic speech recognition in noise using reduced spectral cues.
The Journal of the Acoustical Society of America 2003;114(1):475-83.
2003: Philipos C Loizou; Ginger S Stickney; Lakshmi Mishra; Peter F Assmann
Comparison of speech processing strategies used in the Clarion implant processor.
Ear and hearing 2003;24(1):12-9.
2002: Michael F Dorman; Philipos C Loizou; Anthony J Spahr; Erin Maloff
Factors that allow a high level of speech understanding by patients fit with cochlear implants.
American journal of audiology 2002;11(2):119-23.
2002: Kalyan Kasturi; Philipos C Loizou; Michael F Dorman; Tony Spahr
The intelligibility of speech with "holes" in the spectrum.
The Journal of the Acoustical Society of America 2002;112(3 Pt 1):1102-11.
2002: Michael F Dorman; Philipos C Loizou; Anthony J Spahr; Erin Maloff
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 : JSLHR 2002;45(4):783-8.
2001: Philipos C Loizou; O Poroy
Minimum spectral contrast needed for vowel identification by normal hearing and cochlear implant listeners.
The Journal of the Acoustical Society of America 2001;110(3 Pt 1):1619-27.
2001: C H Chang; G T Anderson; Philipos C Loizou
A neural network model for optimizing vowel recognition by cochlear implant listeners.
IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society 2001;9(1):42-8.
2000: Philipos C Loizou; Michael F Dorman; Z Tu; J Fitzke
Recognition of sentences in noise by normal-hearing listeners using simulations of speak-type cochlear implant signal processors.
The Annals of otology, rhinology & laryngology. Supplement 2000;185():67-8.
2000: Michael F Dorman; Philipos C Loizou; J Fitzke; Z Tu
Recognition of monosyllabic words by cochlear implant patients and by normal-hearing subjects listening to words processed through cochlear implant signal processing strategies.
The Annals of otology, rhinology & laryngology. Supplement 2000;185():64-6.
2000: Michael F Dorman; Philipos C Loizou; L L Kemp; K I Kirk
Word recognition by children listening to speech processed into a small number of channels: data from normal-hearing children and children with cochlear implants.
Ear and hearing 2000;21(6):590-6.
2000: Philipos C Loizou; Michael F Dorman; O Poroy; T Spahr
Speech recognition by normal-hearing and cochlear implant listeners as a function of intensity resolution.
The Journal of the Acoustical Society of America 2000;108(5 Pt 1):2377-87.
2000: Philipos C Loizou; O Poroy; Michael F Dorman
The effect of parametric variations of cochlear implant processors on speech understanding.
The Journal of the Acoustical Society of America 2000;108(2):790-802.
2000: Philipos C Loizou; Michael F Dorman; J Fitzke
The effect of reduced dynamic range on speech understanding: implications for patients with cochlear implants.
Ear and hearing 2000;21(1):25-31.
1999: Philipos C Loizou; Michael F Dorman; Z Tu
On the number of channels needed to understand speech.
The Journal of the Acoustical Society of America 1999;106(4 Pt 1):2097-103.
1999: Philipos C Loizou
Signal-processing techniques for cochlear implants.
IEEE engineering in medicine and biology magazine : the quarterly magazine of the Engineering in Medicine & Biology Society 1999;18(3):34-46.
1999: Philipos C Loizou
Introduction to cochlear implants.
IEEE engineering in medicine and biology magazine : the quarterly magazine of the Engineering in Medicine & Biology Society 1999;18(1):32-42.
1998: Michael F Dorman; Philipos C Loizou; J Fitzke
The identification of speech in noise by cochlear implant patients and normal-hearing listeners using 6-channel signal processors.
Ear and hearing 1998;19(6):481-4.
1998: Michael F Dorman; Philipos C Loizou; J Fitzke; Z Tu
The recognition of sentences in noise by normal-hearing listeners using simulations of cochlear-implant signal processors with 6-20 channels.
The Journal of the Acoustical Society of America 1998;104(6):3583-5.
1998: Michael F Dorman; Philipos C Loizou
The identification of consonants and vowels by cochlear implant patients using a 6-channel continuous interleaved sampling processor and by normal-hearing subjects using simulations of processors with two to nine channels.
Ear and hearing 1998;19(2):162-6.
1998: Philipos C Loizou; Michael F Dorman; V Powell
The recognition of vowels produced by men, women, boys, and girls by cochlear implant patients using a six-channel CIS processor.
The Journal of the Acoustical Society of America 1998;103(2):1141-9.
1997: Michael F Dorman; Philipos C Loizou
Speech intelligibility as a function of the number of channels of stimulation for normal-hearing listeners and patients with cochlear implants.
The American journal of otology 1997;18(6 Suppl):S113-4.
1997: Michael F Dorman; Philipos C Loizou; D Rainey
Simulating the effect of cochlear-implant electrode insertion depth on speech understanding.
The Journal of the Acoustical Society of America 1997;102(5 Pt 1):2993-6.
1997: Michael F Dorman; Philipos C Loizou; D Rainey
Speech intelligibility as a function of the number of channels of stimulation for signal processors using sine-wave and noise-band outputs.
The Journal of the Acoustical Society of America 1997;102(4):2403-11.
1997: Michael F Dorman; Philipos C Loizou
Mechanisms of vowel recognition for Ineraid patients fit with continuous interleaved sampling processors.
The Journal of the Acoustical Society of America 1997;102(1):581-7.
1997: Michael F Dorman; Philipos C Loizou
Changes in speech intelligibility as a function of time and signal processing strategy for an Ineraid patient fitted with continuous interleaved sampling (CIS) processors.
Ear and hearing 1997;18(2):147-55.
1996: Michael F Dorman; Philipos C Loizou
Relative spectral change and formant transitions as cues to labial and alveolar place of articulation.
The Journal of the Acoustical Society of America 1996;100(6):3825-30.
1996: Michael F Dorman; Philipos C Loizou
Improving consonant intelligibility for Ineraid patients fit with continuous interleaved sampling (CIS) processors by enhancing contrast among channel outputs.
Ear and hearing 1996;17(4):308-13.
1995: Philipos C Loizou; Michael F Dorman; A Spanias
Automatic recognition of syllable-final nasals preceded by /epsilon/.
The Journal of the Acoustical Society of America 1995;97(3):1925-8.