Hybrid Masking Algorithm for Universal Hearing Aid System

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H. Hensiba
H. Hensiba
σ
Mrs. V.P. Birla
Mrs. V.P. Birla
α Anna University, Chennai Anna University, Chennai

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Hybrid Masking Algorithm for Universal Hearing Aid System

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Abstract

Technological advances witnessed in cochlear implant (CI) devices, most CI users can now achieve reliable speech intelligibility in controlled quiet scenarios, particularly in predictable conversations. Environmental distortions, such as reverberation and additive noise, on the other hand, are known to significantly degrade speech intelligibility. This paper validates a novel approach to predict speech intelligibility for Cochlear Implant users (CIs) in reverberant environments. First, energy thresholding is proposed to reduce the variability caused by the differences in modulation spectral representations for different phonemes and speakers, as well as speech enhancement algorithm artifacts. Second, a narrower range of Fourier domain based echo Filter is employed to reduce fundamental frequency effects. Results indicate substantial improvements in intelligibility over that attained by human listeners with unprocessed stimuli. The findings from this study show that algorithm can estimate reliably the SNR and can improve speech intelligibility.

References

8 Cites in Article
  1. D Brungart,P Chang,B Simpson,D Wang (2006). Isolating the energetic component of speech-on-speech masking with ideal timefrequency.
  2. I Brons,R Houben,W Dreschler (2012). Perceptual effects of noise reduction by timefrequency masking of noisy speech.
  3. D Wang (2008). Time-frequency masking for speech separation and its potential for hearing aid design.
  4. N Madhu,A Spriet,S Jansen,R Koning,J Wouters (2013). The potential for speech intelligibility improvement using the ideal binary mask and the ideal wiener filter in single channel noise reduction systems: Application to auditory prostheses.
  5. Deliang Wang (2005). On Ideal Binary Mask As the Computational Goal of Auditory Scene Analysis.
  6. D Wang,G Brown (2006). Computational Auditory Scene Analysis: Principles, Algorithms, and Applications.
  7. Michael Anzalone,Lauren Calandruccio,Karen Doherty,Laurel Carney (2006). Determination of the Potential Benefit of Time-Frequency Gain Manipulation.
  8. S Cao,L Li,X Wu (2011). Improvement of intelligibility of ideal binary-masked noisy speech by adding background noise.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

H. Hensiba. 2016. \u201cHybrid Masking Algorithm for Universal Hearing Aid System\u201d. Global Journal of Research in Engineering - F: Electrical & Electronic GJRE-F Volume 16 (GJRE Volume 16 Issue F5): .

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

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GJRE-F Classification: FOR Code: 090699
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v1.2

Issue date

September 24, 2016

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Technological advances witnessed in cochlear implant (CI) devices, most CI users can now achieve reliable speech intelligibility in controlled quiet scenarios, particularly in predictable conversations. Environmental distortions, such as reverberation and additive noise, on the other hand, are known to significantly degrade speech intelligibility. This paper validates a novel approach to predict speech intelligibility for Cochlear Implant users (CIs) in reverberant environments. First, energy thresholding is proposed to reduce the variability caused by the differences in modulation spectral representations for different phonemes and speakers, as well as speech enhancement algorithm artifacts. Second, a narrower range of Fourier domain based echo Filter is employed to reduce fundamental frequency effects. Results indicate substantial improvements in intelligibility over that attained by human listeners with unprocessed stimuli. The findings from this study show that algorithm can estimate reliably the SNR and can improve speech intelligibility.

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Hybrid Masking Algorithm for Universal Hearing Aid System

H. Hensiba
H. Hensiba Anna University, Chennai
Mrs. V.P. Birla
Mrs. V.P. Birla

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