A switching-adaptive beamformer that maintains separate covariance estimates for occluded and unoccluded states reduces own-voice distortion under rapidly switching microphone occlusion compared to a conventional adaptive beamformer.
Modeling of speech- dependent own voice transfer characteristics for hearables with an in-ear microphone,
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Microphone Occlusion Mitigation for Own-Voice Enhancement in Head-Worn Microphone Arrays Using Switching-Adaptive Beamforming
A switching-adaptive beamformer that maintains separate covariance estimates for occluded and unoccluded states reduces own-voice distortion under rapidly switching microphone occlusion compared to a conventional adaptive beamformer.