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Digital Signal Processing for Hearing Instruments

  1. Research Article

    Signal Processing Strategies for Cochlear Implants Using Current Steering

    In contemporary cochlear implant systems, the audio signal is decomposed into different frequency bands, each assigned to one electrode. Thus, pitch perception is limited by the number of physical electrodes i...

    Waldo Nogueira, Leonid Litvak, Bernd Edler, Jörn Ostermann and Andreas Büchner

    EURASIP Journal on Advances in Signal Processing 2009 2009:531213

    Published on: 12 November 2009

  2. Research Article

    Influence of Acoustic Feedback on the Learning Strategies of Neural Network-Based Sound Classifiers in Digital Hearing Aids

    Sound classifiers embedded in digital hearing aids are usually designed by using sound databases that do not include the distortions associated to the feedback that often occurs when these devices have to work...

    Lucas Cuadra, Enrique Alexandre, Roberto Gil-Pita, Raúl Vicen-Bueno and Lorena Álvarez

    EURASIP Journal on Advances in Signal Processing 2009 2009:465189

    Published on: 29 October 2009

  3. Research Article

    Analysis of the Effects of Finite Precision in Neural Network-Based Sound Classifiers for Digital Hearing Aids

    The feasible implementation of signal processing techniques on hearing aids is constrained by the finite precision required to represent numbers and by the limited number of instructions per second to implemen...

    Roberto Gil-Pita (EURASIP Member), Enrique Alexandre, Lucas Cuadra (EURASIP Member), Raúl Vicen and Manuel Rosa-Zurera (EURASIP Member)

    EURASIP Journal on Advances in Signal Processing 2009 2009:456945

    Published on: 28 October 2009

  4. Research Article

    A Computational Auditory Scene Analysis-Enhanced Beamforming Approach for Sound Source Separation

    Hearing aid users have difficulty hearing target signals, such as speech, in the presence of competing signals or noise. Most solutions proposed to date enhance or extract target signals from background noise ...

    L. A. Drake, J. C. Rutledge, J. Zhang and A. Katsaggelos (EURASIP Member)

    EURASIP Journal on Advances in Signal Processing 2009 2009:403681

    Published on: 5 October 2009

  5. Research Article

    The Acoustic and Peceptual Effects of Series and Parallel Processing

    Temporal envelope (TE) cues provide a great deal of speech information. This paper explores how spectral subtraction and dynamic-range compression gain modifications affect TE fluctuations for parallel and ser...

    Melinda C. Anderson, Kathryn H. Arehart and James M. Kates

    EURASIP Journal on Advances in Signal Processing 2009 2009:619805

    Published on: 28 September 2009

  6. Research Article

    The Personal Hearing System—A Software Hearing Aid for a Personal Communication System

    A concept and architecture of a personal communication system (PCS) is introduced that integrates audio communication and hearing support for the elderly and hearing-impaired through a personal hearing system ...

    Giso Grimm, Gwénaël Guilmin, Frank Poppen, Marcel S.M.G. Vlaming and Volker Hohmann

    EURASIP Journal on Advances in Signal Processing 2009 2009:591921

    Published on: 26 August 2009

  7. Research Article

    Rate-Constrained Beamforming in Binaural Hearing Aids

    Recently, hearing aid systems where the left and right ear devices collaborate with one another have received much attention. Apart from supporting natural binaural hearing, such systems hold great potential f...

    Sriram Srinivasan and Albertus C. den Brinker

    EURASIP Journal on Advances in Signal Processing 2009 2009:257197

    Published on: 25 August 2009

  8. Research Article

    Database of Multichannel In-Ear and Behind-the-Ear Head-Related and Binaural Room Impulse Responses

    An eight-channel database of head-related impulse responses (HRIRs) and binaural room impulse responses (BRIRs) is introduced. The impulse responses (IRs) were measured with three-channel behind-the-ear (BTEs)...

    H. Kayser, S. D. Ewert, J. Anemüller, T. Rohdenburg, V. Hohmann and B. Kollmeier

    EURASIP Journal on Advances in Signal Processing 2009 2009:298605

    Published on: 16 July 2009

  9. Research Article

    Incorporating the Conditional Speech Presence Probability in Multi-Channel Wiener Filter Based Noise Reduction in Hearing Aids

    A multi-channel noise reduction technique is presented based on a Speech Distortion-Weighted Multi-channel Wiener Filter (SDW-MWF) approach that incorporates the conditional Speech Presence Probability (SPP). ...

    Kim Ngo, Ann Spriet, Marc Moonen, Jan Wouters and Søren Holdt Jensen

    EURASIP Journal on Advances in Signal Processing 2009 2009:930625

    Published on: 5 July 2009

  10. Research Article

    Low Delay Noise Reduction and Dereverberation for Hearing Aids

    A new system for single-channel speech enhancement is proposed which achieves a joint suppression of late reverberant speech and background noise with a low signal delay and low computational complexity. It is...

    Heinrich W. Löllmann (EURASIP Member) and Peter Vary

    EURASIP Journal on Advances in Signal Processing 2009 2009:437807

    Published on: 28 April 2009