Microphone-array hearing aids with binaural output. II. A two-microphone adaptive system

Welker, Daniel Patrick; Greenberg, Julie; Desloge, Joseph G.; Zurek, Patrick M.

doi:10.1109/89.641299

Cited by 91 publications

(53 citation statements)

References 26 publications

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“…A binaural system comprises two such devices, one on each ear, and they collaborate with one another over a wireless link. Previous studies (Welker et al, 1997) have demonstrated the benefit of binaural noise reduction using two single-microphone hearing aids, where the binaural system enabled spatial filtering. A binaural multi-channel Wiener filter employing multiple microphones at each hearing aid was introduced in Klasen et al (2005), but no comparisons to the monaural multi-channel filter were provided.…”

Section: Introductionmentioning

confidence: 99%

Noise reduction in binaural hearing aids: Analyzing the benefit over monaural systems

Srinivasan

2008

The Journal of the Acoustical Society of America

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Binaural beamforming using signals from both left and right hearing aids offers greater potential for noise reduction than using signals from a single aid. However, wireless transmission of data imposes power constraints. Since most modern hearing aids have multiple microphones and are capable of spatial filtering, it is of interest to study the conditions when a binaural system offers significant improvements over a multi-microphone monaural system, and the situations when the noise reduction benefits are only marginal. An intelligent transmission scheme could then be designed such that signals are exchanged between the hearing aids only when the benefits are significant.

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Section: Introductionmentioning

confidence: 99%

Noise reduction in binaural hearing aids: Analyzing the benefit over monaural systems

Srinivasan

2008

The Journal of the Acoustical Society of America

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“…In the recent years, several works have proposed microphone array-based binaural spatial filtering techniques, using both fixed beamformers [21,22] and adaptive beamformers [23,24]. The work in [25] analyzes the robustness of binaural fixed and adaptive beamformers by means of objective perceptual quality measures.…”

Section: Introductionmentioning

confidence: 99%

Rate-constrained source separation for speech enhancement in wireless-communicated binaural hearing aids

Ayllón

Gil-Pita

Rosa-Zurera

2013

EURASIP J. Adv. Signal Process.

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A recent trend in hearing aids is the connection of the left and right devices to collaborate between them. Binaural systems can provide natural binaural hearing and support the improvement of speech intelligibility in noise, but they require data transmission between both devices, which increases the power consumption. This paper presents a novel sound source separation algorithm for binaural speech enhancement based on supervised machine learning and time-frequency masking. The system is designed considering the power restrictions in hearing aids, constraining both the computational cost of the algorithm and the transmission bit rate. The transmission schema is optimized using a tailored evolutionary algorithm that assigns a different number of bits to each frequency band. The proposed algorithm requires less than 10% of the available computational resources for signal processing and obtains good separation performance using bit rates lower than 64 kbps.

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“…In a binaural setup, two hearing aids are worn, which can communicate each other, e.g., via a wireless link. The NR schemes applied in hearing aids can be adapted to take advantage of this setup to deliver improved SNR [8] and to preserve binaural localization cues [9].…”

Section: Introductionmentioning

confidence: 99%

Binaural Integrated Active Noise Control and Noise Reduction in Hearing Aids

Serizel

Moonen

Wouters

et al. 2013

IEEE Trans. Audio Speech Lang. Process.

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Microphone-array hearing aids with binaural output. II. A two-microphone adaptive system

Cited by 91 publications

References 26 publications

Noise reduction in binaural hearing aids: Analyzing the benefit over monaural systems

Noise reduction in binaural hearing aids: Analyzing the benefit over monaural systems

Rate-constrained source separation for speech enhancement in wireless-communicated binaural hearing aids

Binaural Integrated Active Noise Control and Noise Reduction in Hearing Aids

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