Method for operating a hearing device as well as a hearing device

摘要

A method for operating a hearing device by applying a frequency transposition scheme to an input signal of the hearing device comprising an input transducer, a signal processing unit and an output transducer, the method comprising the steps of transforming the input signal from time domain into frequency domain by applying a transformation function in order to obtain an input spectrum having a frequency range comprising a source region (20) and a destination region (30), adaptively selecting signal components of the source region (20) taking into account momentary characteristics of the input signal, transposing the selected signal components to the destination region (30), and supplying the output spectrum or a transformation thereof to the output transducer, the output spectrum comprising signal components of the destination region (30).

主权项

1. A method for operating a hearing device by applying a frequency transposition scheme to an input signal (i) of the hearing device comprising an input transducer (1), a signal processing unit (3) and an output transducer (5), the method comprising the steps of:
transforming the input signal (i) from time domain into frequency domain by applying a transformation function in order to obtain an input spectrum having a frequency range comprising a source region (20) and a destination region (30), adaptively selecting signal components of the source region (20) taking into account momentary characteristics of the input signal (i), transposing the selected signal components to the destination region (30), and supplying an output spectrum or a transformation thereof to the output transducer (5), the output spectrum comprising signal components of the destination region (30), wherein the source region (20) comprises a lower source region (21) and at least two source stacks (22, . . . , 26), the lower source region (21) being below a cut-off frequency (FC) and the at least two source stacks (22, . . . , 26) being above the cut-off frequency (FC), and wherein the destination region (20) comprises a lower destination region (31) and a destination stack (32), the lower destination region (31) being below the cut-off frequency (FC) and the destination stack (32) being above the cut-off frequency (FC), the cut-off frequency (FC) particularly being below 1,500 Hz, and wherein one of the source stacks (22, . . . , 26) is selected and transposed to the destination stack (32) by either replacing an original frequency content of the destination stack (32) with a frequency content of the selected source stack (22, . . . , 26) or combining the original frequency content of the destination stack (32) with the frequency content of the selected source stack (22, . . . , 26).