TITLE

LOCALIZAÇÃO SONORA EM USUÁRIOS DE APARELHOS DE AMPLIFICAÇÃO SONORA INDIVIDUAL

AUTHOR(S)
Rodrigues, Paula Cristina; de Oliveira, Aline Cabral; Colafêmina, José Fernando; Menezes, Pedro de Lemos
PUB. DATE
May 2010
SOURCE
Revista CEFAC;2010, Vol. 12 Issue 3, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Purpose: to compare the sound localization performance of hearing aids users, with the performance of normal hearing in the horizontal and sagittal planes, at 0.5, 2 and 4.5 Hz; to correlate the correct responses in sound localization tasks and the use time of hearing aids. Methods: eight normal hearing subjects and 20 hearing aid users were tested, subdivided into groups of 10 in-the-canal (ITC) hearing aid users and 10 behind-the-ear (BTE) hearing aid users. All subjects were tested with a sound localization device which had three types of square waves with fundamental frequencies at 0.5 kHz, 2 kHz and 4.5 kHz, at 70 dBA. Results: the rate of correct responses in sound localization tasks was 78.4%, 72.2% and 72.9% for normal hearing subjects, at 0.5 kHz, 2 kHz and 4.5 kHz, respectively, and 40.1%, 39.4%, and 41.7% for hearing aid users. As for the types of hearing aids, users of ITC type hit the correctly sound localization in 47.2% and user of BTE type in 37.4%. Conclusion: normal hearing subjects locate sound sources more efficiently than hearing aid users, and among these, those using the ITC type obtained better performance. Moreover, the time of use does not interfere with the performance for locating the sound sources.
ACCESSION #
54312380

 

Related Articles

  • IMPACT OF EVIRONMENTAL NOISE ON BINAURAL HEARING. Jostaitė, Asta; Kanapickas, Arvydas // International Conference: Radiation Interaction with Material & ;2008, p85 

    Binaural identification of sound sources is an important human hearing ability. In this work an experimental system is presented, which allows to investigate physical principles of binaural hearing. It is shown that at low frequencies there are limited possibilities to localize sound source...

  • Did someone say sex on a peach? Williams, Caroline // New Scientist;12/23/2006, Vol. 192 Issue 2583/2584, p58 

    The article explains the problem that partial deafness plays in loud social situations like parties and clubs. When a person has a hearing impairment, they cannot distinguish where a sound is originating from. An experiment found that ferrets were able to relearn sound localization and this...

  • Sharp Bilateral Hearing Crucial for Echolocation.  // ASHA Leader;Aug2015, Vol. 20 Issue 8, p16 

    The article discusses research on the role of bilateral high-frequency hearing for echolocation, referencing a 2013 study by researchers from the Institute of Sound & Vibration Research at the University of Hampton, published in the periodical "Hearing Research."

  • Adaptation in Sound Localization Processing Induced by Interaural Time Difference in Amplitude Envelope at High Frequencies. Kawashima, Takayuki; Sato, Takao // PLoS ONE;Jul2012, Vol. 7 Issue 7, p1 

    Background: When a second sound follows a long first sound, its location appears to be perceived away from the first one (the localization/lateralization aftereffect). This aftereffect has often been considered to reflect an efficient neural coding of sound locations in the auditory system. To...

  • Auralization of spaces. Vorländer, Michael // Physics Today;Jun2009, Vol. 62 Issue 6, p35 

    The article focuses on the importance of auralization for creating an auditory psychoacoustic effects and sound graphical distribution in space. Auralization is cited to be used in the field of acoustics, which marks loud and quiet zones in noise maps. It also looks into the use of auralization...

  • Postfiltering Using Multichannel Spectral Estimation in Multispeaker Environments. Hai Quang Dam; Nordholm, Sven; Hai Huyen Dam; Siow Yong Low // EURASIP Journal on Advances in Signal Processing;2008, p1 

    This paper investigates the problem of enhancing a single desired speech source from a mixture of signals in multispeaker environments. A beamformer structure is proposed which combines a fixed beamformer with postfiltering. In the first stage, the fixed multiobjective optimal beamformer is...

  • Database of Multichannel In-Ear and Behind-the-Ear Head-Related and Binaural Room Impulse Responses. Kayser, H.; Ewert, S. D.; Anemüller, J.; Rohdenburg, T.; Hohmann, V.; Kollmeier, B. // EURASIP Journal on Advances in Signal Processing;2009, Special section p1 

    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) hearing aids and an in-ear microphone at both ears of a human head and torso...

  • Speech Perception and Localisation with SCORE Bimodal: A Loudness Normalisation Strategy for Combined Cochlear Implant and Hearing Aid Stimulation. Francart, Tom; McDermott, Hugh // PLoS ONE;Oct2012, Vol. 7 Issue 10, Special section p1 

    A significant fraction of newly implanted cochlear implant recipients use a hearing aid in their non-implanted ear. SCORE bimodal is a sound processing strategy developed for this configuration, aimed at normalising loudness perception and improving binaural loudness balance. Speech perception...

  • A Computational Auditory Scene Analysis-Enhanced Beamforming Approach for Sound Source Separation. Drake, L. A.; Rutledge, J. C.; Zhang, J.; Katsaggelos, A. // EURASIP Journal on Advances in Signal Processing;2009, Special section p1 

    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 and interference based on either location attributes or source attributes. Location...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics