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Listening Effort, Speech Intelligibility, and Narrow Directionality

This article outlines results from an experiment at the National Acoustic Laboratories (NAL) using a narrow-directionality (binaural beamformer) feature, and shows the advantage of this type of directional feature in situations where listening to a frontal target speech is a challenging task, and a closed fitting is acceptable.

Improvement in Speech Intelligibility and Subjective Benefit with Binaural Beamformer Technology

New adaptive behavior of Phonak binaural beamformer StereoZoom provides significant benefit in speech intelligibility and subjective rating as compared to static or monaural beamformers. This benefit is most evident in difficult listening environments such as when noise is predominantly present from the sides.

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