scholarly journals Two New Directions in Speech Processor Design for Cochlear Implants

2005 ◽  
Vol 26 (Supplement) ◽  
pp. 73S-81S ◽  
Author(s):  
Blake S. Wilson ◽  
Reinhold Schatzer ◽  
Enrique A. Lopez-Poveda ◽  
Xiaoan Sun ◽  
Dewey T. Lawson ◽  
...  
Keyword(s):  
Cochlear Implants ◽  
Processor Design ◽  
Speech Processor ◽  
New Directions

Selecting the Optimal FM System for Children With Cochlear Implants

2008 ◽  
Vol 18 (1) ◽  
pp. 19-24
Author(s):  
Erin C. Schafer
Keyword(s):  
Speech Recognition ◽  
Cochlear Implants ◽  
Empirical Research ◽  
Background Noise ◽  
Signal To Noise Ratio ◽  
Evidence Based ◽  
Signal To Noise ◽  
Speech Processor ◽  
System Input ◽  
Optimal Type

Children who use cochlear implants experience significant difficulty hearing speech in the presence of background noise, such as in the classroom. To address these difficulties, audiologists often recommend frequency-modulated (FM) systems for children with cochlear implants. The purpose of this article is to examine current empirical research in the area of FM systems and cochlear implants. Discussion topics will include selecting the optimal type of FM receiver, benefits of binaural FM-system input, importance of DAI receiver-gain settings, and effects of speech-processor programming on speech recognition. FM systems significantly improve the signal-to-noise ratio at the child's ear through the use of three types of FM receivers: mounted speakers, desktop speakers, or direct-audio input (DAI). This discussion will aid audiologists in making evidence-based recommendations for children using cochlear implants and FM systems.

Multichannel Cochlear Implants: Channel Interactions and Processor Design

1984 ◽  
Vol 110 (8) ◽  
pp. 493-501 ◽  
Author(s):  
M. W. White ◽  
M. M. Merzenich ◽  
J. N. Gardi
Keyword(s):  
Cochlear Implants ◽  
Processor Design ◽  
Channel Interactions

Wearable Digital Speech Processor for Cochlear Implants Using a TMS320C25

1990 ◽  
Vol 109 (sup469) ◽  
pp. 120-127 ◽  
Author(s):  
Norbert Dillier ◽  
Christian Senn ◽  
Thomas Schlatter ◽  
Martin Stöckli ◽  
Urs Utzinger
Keyword(s):  
Cochlear Implants ◽  
Speech Processor

Evaluation of Speech Recognition in Noise with Cochlear Implants and Dynamic FM

2009 ◽  
Vol 20 (07) ◽  
pp. 409-421 ◽  
Author(s):  
Jace Wolfe ◽  
Erin C. Schafer ◽  
Benjamin Heldner ◽  
Hans Mülder ◽  
Emily Ward ◽  
...  
Keyword(s):  
Speech Recognition ◽  
Cochlear Implants ◽  
Noise Level ◽  
Repeated Measures ◽  
Group Performance ◽  
Signal To Noise Ratio ◽  
Speech Processor ◽  
Repeated Measures Design ◽  
Hearing In Noise ◽  
Speech Recognition In Noise

Background: Use of personal frequency-modulated (FM) systems significantly improves speech recognition in noise for users of cochlear implants (CIs). Previous studies have shown that the most appropriate gain setting on the FM receiver may vary based on the listening situation and the manufacturer of the CI system. Unlike traditional FM systems with fixed-gain settings, Dynamic FM automatically varies the gain of the FM receiver with changes in the ambient noise level. There are no published reports describing the benefits of Dynamic FM use for CI recipients or how Dynamic FM performance varies as a function of CI manufacturer. Purpose: To evaluate speech recognition of Advanced Bionics Corporation or Cochlear Corporation CI recipients using Dynamic FM vs. a traditional FM system and to examine the effects of Autosensitivity on the FM performance of Cochlear Corporation recipients. Research Design: A two-group repeated-measures design. Participants were assigned to a group according to their type of CI. Study Sample: Twenty-five subjects, ranging in age from 8 to 82 years, met the inclusion criteria for one or more of the experiments. Thirteen subjects used Advanced Bionics Corporation, and 12 used Cochlear Corporation implants. Intervention: Speech recognition was assessed while subjects used traditional, fixed-gain FM systems and Dynamic FM systems. Data Collection and Analysis: In Experiments 1 and 2, speech recognition was evaluated with a traditional, fixed-gain FM system and a Dynamic FM system using the Hearing in Noise Test sentences in quiet and in classroom noise. A repeated-measures analysis of variance (ANOVA) was used to evaluate effects of CI manufacturer (Advanced Bionics and Cochlear Corporation), type of FM system (traditional and dynamic), noise level, and use of Autosensitivity for users of Cochlear Corporation implants. Experiment 3 determined the effects of Autosensitivity on speech recognition of Cochlear Corporation implant recipients when listening through the speech processor microphone with the FM system muted. A repeated-measures ANOVA was used to examine the effects of signal-to-noise ratio and Autosensitivity. Results: In Experiment 1, use of Dynamic FM resulted in better speech recognition in noise for Advanced Bionics recipients relative to traditional FM at noise levels of 65, 70, and 75 dB SPL. Advanced Bionics recipients obtained better speech recognition in noise with FM use when compared to Cochlear Corporation recipients. When Autosensitivity was enabled in Experiment 2, the performance of Cochlear Corporation recipients was equivalent to that of Advanced Bionics recipients, and Dynamic FM was significantly better than traditional FM. Results of Experiment 3 indicate that use of Autosensitivity improves speech recognition in noise of signals directed to the speech processor relative to no Autosensitivity. Conclusions: Dynamic FM should be considered for use with persons with CIs to improve speech recognition in noise. At default CI settings, FM performance is better for Advanced Bionics recipients when compared to Cochlear Corporation recipients, but use of Autosensitivity by Cochlear Corporation users results in equivalent group performance.

scholarly journals Impact of COVID-19 on the access to hearing health care services for children with cochlear implants: a survey of parents

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 690 ◽  
Author(s):  
Mohammed Ayas ◽  
Ahmad Mohd Haider Ali Al Amadi ◽  
Duaa Khaled ◽  
Ahmad Munzer Alwaa
Keyword(s):  
Health Services ◽  
Cochlear Implants ◽  
Health Care Services ◽  
Healthcare Access ◽  
Speech Sound ◽  
Healthcare Services ◽  
Online Questionnaire ◽  
Speech Processor ◽  
Hearing Health ◽  
The Impact

Background: The COVID-19 pandemic has affected the world in an unprecedented manner. It has aggravated psychological distress in parents of children with cochlear implants. Continuous use of a speech sound processor is critical for auditory stimulation in children with cochlear implants. However, movement restrictions imposed have affected access to hearing healthcare services. The current study explores the impact of the COVID-19 pandemic on hearing healthcare access for children with cochlear implants. Methods: An online questionnaire survey was conducted among parents of children with cochlear implants. Results: A total of 24 parents responded to the questionnaire. All the respondents reported that COVID-19 has a significant impact on access to hearing health services for their children. Speech processor breakdown and disconnection from the auditory mode of communication had a critical influence on behavioral changes in children. Conclusions: The current study highlights the hurdles faced by the parents in order to access hearing health services for their children. The use of innovative methods such as remote tele-audiology will be the way forward to tackle challenges faced by the parents.

Pediatric Cochlear Implant Mapping Via Telepractice

2016 ◽  
Vol 1 (18) ◽  
pp. 12-18 ◽  
Author(s):  
Michelle L. Hughes ◽  
Jenny L. Goehring ◽  
Margaret K. Miller ◽  
Sara N. Robinson
Keyword(s):  
Young Children ◽  
Cochlear Implant ◽  
Cochlear Implants ◽  
Study Design ◽  
Behavioral Responses ◽  
Behavioral Testing ◽  
Testing Methods ◽  
Speech Processor ◽  
Potential Benefits ◽  
Behavioral Methods

Several studies have empirically examined the feasibility and outcomes of remote programming for adults with cochlear implants. Results indicate that equivalent programming levels can be obtained in both the remote and in-person conditions, suggesting that distance technology is a viable alternative to traditional in-person programming methods. Young children, however, require different audiological testing methods to obtain the behavioral responses necessary for speech-processor programming. No studies have empirically evaluated the use of remote programming with the behavioral methods specific to testing young children. Further, young children present additional challenges to behavioral testing (e.g., ability to condition or cooperate) that can lead to the need for additional visits beyond those required for regular programming. This paper describes the potential benefits of remote programming over those achieved for adults, and describes the study design and preliminary results from our current study aimed at validating the use of remote processor programming for young children with cochlear implants (CIs).

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