Abstract: An illustrative hearing device includes a battery having a battery voltage, a microphone for transducing sound into an input signal, a processor configured to be operated with an operating voltage and to generate an output signal from the input signal, a speaker for transducing the output signal to an acoustic signal, and a valve. An acoustic effect of the valve is adjustable by applying a valve voltage, wherein the adjustment is controllable by the processor. The hearing device comprises a voltage regulator configured to generate the operating voltage from the battery voltage, wherein the operating voltage is less than the battery voltage and wherein the valve voltage is greater than the operating voltage.

Abstract: CIC Hearing device (50, 1000, 1100) comprising electronics configured to receive an electrical signal as an input signal and generate an output signal provided to a receiver, the electronics including a variable gain amplifier with input buffering circuitry including a compound transistor, the electronics being configured to bias the compound transistor such that a quiescent current associated with the output signal is limited or controlled.

Abstract: Hearing devices/hearing device systems (50, 1000, 1100) with very low or ultra-low power electronics/circuitry (1006, 1114) and methods (2100, 2200, 2300, 2400) utilizing and/or facilitating utilization of very low or ultra-low power electronics/circuitry in hearing devices/hearing device systems.

Abstract: There is proposed a method and system for hearing protecting individuals, especially musicians. Thereby, such an individual is equipped with a hearing device (3, 5), the attenuation of acoustical signals impinging on such hearing device to signals transmitted towards the ear drum (8) is adjustable. There is provided a remote control unit (9), the output thereof being operationally connected to an attenuation control input (C3) of the device (3). The remote control unit (9) is thereby operated differently than by the hands of the individual (1) which are frequently busy.

Abstract: In of for a hearing device (2) acoustical attenuation within an acoustically effective channel (1) is controllably varied due to controlled variation of at least one of oscillating behaviour ( Z), elasticity (?) and shape of a member (9) within the channel (1).

Abstract: A method for detecting and automatically selecting an input signal in a hearing aid in which at least two analog input signals are available, comprises the steps of analyzing the analog input signals and detecting, for each analog input signal, whether it comprises a relevant signal, selecting, according to results of said analysis, at least one selected input signal that comprises a relevant signal for further processing, and controlling a signal routing means to selectively route each one of the at least one selected input signals to further processing means. A hearing aid according to the invention comprises means to perform the above method.

Abstract: A method for detecting and automatically selecting an input signal in a hearing aid in which at least two analog input signals are available, comprises the steps of analysing the analog input signals and detecting, for each analog input signal, whether it comprises a relevant signal, selecting, according to results of said analysis, at least one selected input signal that comprises a relevant signal for further processing, and controlling a signal routing means to selectively route each one of the at least one selected input signals to further processing means. A hearing aid according to the invention comprises means to perform the above method.

Abstract: A method is disclosed to optimize energy consumption in a hearing device in which one of several hearing programs can be selected, as well as a hearing device. The method comprises the steps of taking into account knowledge of computing power needed by the selected hearing program for adjusting a clock frequency (fCL) for a clock signal (CL) and possibly also the supply voltage (VCC, VMEM) driving processing units (1) of the hearing device, and, furthermore, by adjusting the clock frequency (fCL) of the clock signal (CL) and possibly also of the supply voltage (VCC, VMEM) as soon as the corresponding hearing program is activated. The present invention has the advantage that power consumption can dramatically be reduced because only the absolutely necessary energy is used by the processing units.

Abstract: A microphone device sized for use in a hearing device. The microphone device includes a buffer stage with an output FET. The microphone device has exclusively a reference potential tap and an output signal tap.

Abstract: In order to generate a predetermined or predeterminable receiving characteristic of a digital hearing aid having at least two microphones, the analog output of at least one of the microphones (5a) is converted in an analog-digital manner by over-sampling and then is down-sampled. The time delay necessary to adjust the directional characteristics is carried out at the down-sampled signal. The two signals fed from the microphones (3a, 3b) to a superposition unit (11) are level matched.