Microphone arrays for hearing aids: An overview
Using the difference in the spatial domain (direction or location) between a target signal and noise, a system with a microphone array can achieve the goal of noise reduction and speech enhancement in various environments, especially, in speech-like noisy environments. This paper deals with various...
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Veröffentlicht in: | Speech communication 2003, Vol.39 (1), p.139-146 |
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creator | Widrow, Bernard Luo, Fa-Long |
description | Using the difference in the spatial domain (direction or location) between a target signal and noise, a system with a microphone array can achieve the goal of noise reduction and speech enhancement in various environments, especially, in speech-like noisy environments. This paper deals with various issues related to the use of microphone arrays in hearing aids. It includes overall principles, algorithms, real-time implementation, configuration, processing mode, geometry, combination with binaural processing, directivity pattern, frequency responses, and compensation for mismatch and misplacement of microphones. A practical microphone array device will be presented that uses microphone array based processing techniques to help hearing aids deliver improvement in signal-to-noise ratio, reduction of the effects of reverberation, and reduction of the feedback, with appropriate configuration and connections. |
doi_str_mv | 10.1016/S0167-6393(02)00063-8 |
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title | Microphone arrays for hearing aids: An overview |
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