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AN APPARATUS AND METHOD FOR ENHANCING A WANTED COMPONENT IN A SIGNAL

Abstract(summary):

A signal enhancer comprises an input configured to receive an audio signal that has a wanted component and an unwanted component. It also comprises a perception analyser that is configured to split the audio signal into a plurality of spectral components. The perception analyser is also configured to, for each spectral component, designate that spectral component as belonging to the wanted component or the unwanted component in dependence on a power estimate associated with that spectral component. If a spectral component is designated as belonging to the unwanted component, the perception analyser is configured to adjust its power by applying an adaptive gain to that spectral component, wherein the adaptive gain is selected in dependence on how perceptible the spectral component is expected to be to a user. This improves the intelligibility of the wanted component.


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