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DSP in Hearing Aids and Cochlear Implants

  1. Content type: Research Article

    Blind source separation (BSS) of independent sources from their convolutive mixtures is a problem in many real-world multisensor applications. In this paper, we propose and implement an efficient FPGA hardware...

    Authors: Charayaphan Charoensak and Farook Sattar

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:173453

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  2. Content type: Research Article

    SPAIDE (sound-processing algorithm integrated development environment) is a real-time platform of Advanced Bionics Corporation (Sylmar, Calif, USA) to facilitate advanced research on sound-processing and electric...

    Authors: L. Van Immerseel, S. Peeters, P. Dykmans, F. Vanpoucke and P. Bracke

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:764821

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  3. Content type: Research Article

    This paper addresses the implementation of a filterbank for digital hearing aids using a multi-dimensional logarithmic number system (MDLNS). The MDLNS, which has similar properties to the classical logarithmi...

    Authors: Roberto Muscedere, Vassil Dimitrov, Graham Jullien and William Miller

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:326504

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  4. Content type: Research Article

    We describe a new signal processing technique for cochlear implants using a psychoacoustic-masking model. The technique is based on the principle of a so-called "NofM" strategy. These strategies stimulate fewe...

    Authors: Waldo Nogueira, Andreas Büchner, Thomas Lenarz and Bernd Edler

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:101672

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  5. Content type: Research Article

    We propose time-frequency domain methods for noise estimation and speech enhancement. A speech presence detection method is used to find connected time-frequency regions of speech presence. These regions are u...

    Authors: Karsten Vandborg Sørensen and Søren Vang Andersen

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:305909

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  6. Content type: Research Article

    The development of hearing aids incorporates two aspects, namely, the audiological and the technical point of view. The former focuses on items like the recruitment phenomenon, the speech intelligibility of he...

    Authors: V. Hamacher, J. Chalupper, J. Eggers, E. Fischer, U. Kornagel, H. Puder and U. Rass

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:152674

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  7. Content type: Research Article

    A sound classification system for the automatic recognition of the acoustic environment in a hearing aid is discussed. The system distinguishes the four sound classes "clean speech," "speech in noise," "noise,...

    Authors: Michael Büchler, Silvia Allegro, Stefan Launer and Norbert Dillier

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:387845

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  8. Content type: Research Article

    A multichannel dynamic-range compressor system using digital frequency warping is described. A frequency-warped filter is realized by replacing the filter unit delays with all-pass filters. The appropriate des...

    Authors: James M. Kates and Kathryn Hoberg Arehart

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:483486

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  9. Content type: Research Article

    Ultra-wideband (UWB) radio offers low power consumption, low power spectral density, high immunity against interference, and other benefits, not only for consumer electronics, but also for medical devices. A c...

    Authors: Thomas Buchegger, Gerald Oßberger, Alexander Reisenzahn, Erwin Hochmair, Andreas Stelzer and Andreas Springer

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:647310

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  10. Content type: Research Article

    Authors: Simon Doclo, Søren Holdt Jensen, Philippe A. Pango, Søren K. Riis and Jan Wouters

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:470306

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  11. Content type: Research Article

    Cochlear implants can provide partial restoration of hearing, even with limited spectral resolution and loss of fine temporal structure, to severely deafened individuals. Studies have indicated that background...

    Authors: Jeremiah J. Remus and Leslie M. Collins

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:467924

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  12. Content type: Research Article

    This study describes a new noise suppression scheme for hearing aid applications based on the auditory masking threshold (AMT) in conjunction with a modified generalized minimum mean square error estimator (GM...

    Authors: Ajay Natarajan, John H.L. Hansen, Kathryn Hoberg Arehart and Jessica Rossi-Katz

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:678405

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  13. Content type: Research Article

    Results for linear and wide-dynamic range compression were compared with a new 64-channel digital amplification strategy in three separate studies. The new strategy addresses the requirements of the hearing ai...

    Authors: Peter J. Blamey, David S. Macfarlane and Brenton R. Steele

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:731371

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  14. Content type: Research Article

    A comprehensive linear minimum mean squared error (LMMSE) approach for parametric speech enhancement is developed. The proposed algorithms aim at joint LMMSE estimation of signal power spectra and phase spectr...

    Authors: Chunjian Li and Søren Vang Andersen

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:734507

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  15. Content type: Research Article

    We propose a robust microphone array for speech enhancement and noise suppression. To overcome target signal cancellation problem of conventional beamformes caused by array imperfections or reverberation effec...

    Authors: Zhu Liang Yu and Meng Hwa Er

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:534013

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