Control of output modulation in a hearing instrument

摘要

The present invention relates to a listening device for a hearing impaired person. The present invention furthermore relates to a corresponding operating method of operating a listening device and to a corresponding computer program. In particular, the present invention relates to a listening device that comprises a signal processing unit that is controlled by a controller configured to implement a combined feed-forward and feed-back control in order to ensure that both an electric input signal and a processed electric output signal have at least almost identical modulation index values. Thereby, speech intelligibility is increased, in particular for a hearing impaired person being capable of perceiving sound pressure levels in a substantially decreased dynamic range.

主权项

1. A listening device for a hearing impaired person, the listening device comprising:
an input transducer configured to provide an electric input signal representing an audio signal; a signal processing unit configured to process the electric input signal and to output a processed electric output signal; an input measurement unit configured to determine an input value of a modulation parameter of the electric input signal; an output measurement unit configured to determine an output value of the same modulation parameter of the processed electric output signal; a voice detector configured to determine whether or not an input signal comprises a voice signal and to output a control signal indicating whether speech is detected; and a controller coupled to the signal processing unit and being configured to control processing of the electric input signal through the signal processing unit in dependence of
the determined input value of the modulation parameter,the determined output value of the modulation parameter, andthe control signal output from the voice detector.