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Separation of Speech and Noise in Challenging Environmental by Independent Component Analysis

When hearing aid wearers communicate with other people, the current hearing aids not only amplify speech signals, but also amplify unwanted background noise. The wears can’t then understand communication speech well due to noise interference. This article investigates a method based on independent component analysis (ICA) with the directional microphone to extract speech signals from complicated environmental noise. We try to enhance SNR and speech intelligibility of hearing aids to help the users improving their hearing and communication ability at home, office or challenging environment etc.