Abstract: A method is disclosed for operating a hearing device, comprising a receiver and an active vent. The method includes 1) upon request to switch the active vent into a different state, estimating a transfer function (H, Hrec?mic) from the receiver to obtain a first transfer function (?a), 2) subsequently switching the active vent, 3) subsequently estimating a transfer function (H, Hrec?mic) from the receiver to obtain a second transfer function (?b), 4) comparing the first transfer function (?a) to the second transfer function (?b) to obtain a divergence measure (D), 5) concluding that the active vent has actually been switched into the different state if the divergence measure (D) exceeds a threshold (Ddiff).

Abstract: A hearing device component (6) comprises a sensor-unit (8) for receiving an audio-signal (AS), a separation device (9) for separating part-signals (PSi) from the audio-signal (AS), a classification device (10) for classifying the part-signals (PSi) separated from the audio-signals (AS), and a modulation device (11) for modulating the part-signals (PSi), wherein the classification device (10) is communicatively coupled to the modulation device (11) and wherein the modulation device (11) is designed to enable a concurrent modulation of different part-signals (PSi) with different modulation-functions depending on their classification.

Abstract: A method is disclosed for operating a hearing device, comprising a receiver and an active vent. The method includes 1) upon request to switch the active vent into a different state, estimating a transfer function (H, Hrec?mic) from the receiver to obtain a first transfer function (?a), 2) subsequently switching the active vent, 3) subsequently estimating a transfer function (H, Hrec?mic) from the receiver to obtain a second transfer function (?b), 4) comparing the first transfer function (?a) to the second transfer function (?b) to obtain a divergence measure (D), 5) concluding that the active vent has actually been switched into the different state if the divergence measure (D) exceeds a threshold (Ddiff).

Abstract: A hearing device component (6) comprises a sensor-unit (8) for receiving an audio-signal (AS), a separation device (9) for separating part-signals (PSi) from the audio-signal (AS), a classification device (10) for classifying the part-signals (PSi) separated from the audio-signals (AS), and a modulation device (11) for modulating the part-signals (PSi), wherein the classification device (10) is communicatively coupled to the modulation device (11) and wherein the modulation device (11) is designed to enable a concurrent modulation of different part-signals (PSi) with different modulation-functions depending on their classification.

Abstract: This invention relates to a method of managing adaptive feedback cancellation in a hearing device comprising at least a microphone (1); a receiver (2); and a signal processing circuitry, configured to receive from said microphone (1) an input signal (Xtd, Xfd, Xc) and to provide said receiver (2) with an output signal (Yfd, Ufd, Utd). An external acoustic feedback path (300) defined by feedback sound (fb) traveling from the receiver (2) to the microphone (1) is represented by an external feedback path transfer function (3). The signal processing unit comprises at least a gain unit (4); a feedback canceller unit (5) comprising an adaptive filter element (6) configured to adaptively accommodate changes in said external acoustic feedback path transfer function (3); and a frequency shift unit (7) configured to stabilize an adaptation of the feedback canceler unit (5).

Abstract: This invention relates to a method of managing adaptive feedback cancellation in a hearing device comprising at least a microphone (1); a receiver (2); and a signal processing circuitry, configured to receive from said microphone (1) an input signal (Xtd, Xfd, Xc) and to provide said receiver (2) with an output signal (Yfd, Ufd, Utd). An external acoustic feedback path (300) defined by feedback sound (fb) traveling from the receiver (2) to the microphone (1) is represented by an external feedback path transfer function (3). The signal processing unit comprises at least a gain unit (4); a feedback canceller unit (5) comprising an adaptive filter element (6) configured to adaptively accommodate changes in said external acoustic feedback path transfer function (3); and a frequency shift unit (7) configured to stabilize an adaptation of the feedback canceler unit (5).

Abstract: The present invention proposes a method for providing at least one indication regarding whether an input signal contains a tonal signal component. The proposed method comprises decomposing the input signal into a plurality of band-limited input signals and then for each of one or more of the plurality of band-limited input signals performing the following step: estimating parameters of a parametric tonal signal model adapted to model and predict a tonal-only signal component of a selected one of the one or more of the plurality of band-limited input signals; synthesizing based on the estimated parameters a corresponding predicted band-limited input signal; and determining a measure of mismatch between the selected band-limited input signal and the corresponding predicted band-limited input signal. Subsequently, the at least one indication is provided based on the measure of mismatch determined for at least one of the one or more of the plurality of band-limited input signals.

Abstract: The present invention proposes a method for providing at least one indication regarding whether an input signal contains a tonal signal component. The proposed method comprises decomposing the input signal into a plurality of band-limited input signals and then for each of one or more of the plurality of band-limited input signals performing the following step: estimating parameters of a parametric tonal signal model adapted to model and predict a tonal-only signal component of a selected one of the one or more of the plurality of band-limited input signals; synthesizing based on the estimated parameters a corresponding predicted band-limited input signal; and determining a measure of mismatch between the selected band-limited input signal and the corresponding predicted band-limited input signal. Subsequently, the at least one indication is provided based on the measure of mismatch determined for at least one of the one or more of the plurality of band-limited input signals.