摘要:
A device and a method reduce direction dependent spatial noise. The device includes a plurality of microphones for measuring an acoustic input signal from an acoustic source. The plurality of microphones form at least one monaural pair and at least one binaural pair. Directional signal processing circuitry is provided for obtaining, from the input signal, at least one monaural directional signal and at least one binaural directional signal. A target signal level estimator estimates a target signal level by combining at least one of the monaural directional signals and at least one of the binaural directional signals, which at least one monaural directional signal and at least one binaural directional signal mutually have a maximum response in a direction of the acoustic source. A noise signal level estimator estimates a noise signal level by combining at least one of the monaural directional signals and at least one of the binaural directional signals, which at least one monaural directional signal and at least one binaural directional signal mutually have a minimum sensitivity in the direction of the acoustic source.
摘要:
An apparatus and a method for background noise estimation use a first and a second hearing device for binaural supply of a hearing impaired person. In each case the hearing devices have a first and a second omnidirectional microphone and the two microphones of each hearing device are connected to each other electrically in order to form a first and/or a second monaural directional characteristic. The first and/or second microphone of the first hearing device is connected together wirelessly with the first and/or second microphone of the second hearing device to form a binaural directional characteristic. To estimate the background noise, the level of an output signal from the first and/or the second directional microphone having a monaural directional characteristic is combined with the level of an output signal from the directional microphone having a binaural directional characteristic. Background noise estimation is thereby enhanced in the case of binaural supply.
摘要:
A microphone system and an associated method are proposed. The microphone system comprises at least two omnidirectional, microphone signal-emitting directional microphones connected electrically to one another to establish directivity, at least one filter unit with at least one adaptation parameter for the adaptive filtering of the at least two microphone signals and a control unit to change the at least one adaptation parameter such that the sum of interference power is reduced. The value range of the at least one adaptation parameter is limited. The control unit determines limits from a comparison of the noise floor of the ambient noise with a microphone noise number. The adaptation range of an adaptive differential directional microphone is a function of stationary component of background noise, so the directivity can be selected such that the non-stationary microphone noise resulting due to directivity is masked by the stationary component of the background noise.
摘要:
The invention relates to a method for a hearing aid wearer to actively operate a hearing aid. A signal processing section of the hearing aid has a demixing module for separating audio signals and a postprocessor module which sets up a hold mode of operation for the hearing aid. An audio signal, which is preferred by the hearing aid wearer, from an ambient sound, is tracked and selected by virtue of the hearing aid wearer transmitting to the hearing aid a command which sets up the hold mode of operation in the signal processing section of the hearing aid for a certain period. The signal processing section tracks the preferred audio signal and selectively takes account of it in an output sound from the hearing aid such that it is audibly highlighted for the hearing aid wearer in comparison with another audio signal and is thereby perceived better.
摘要:
Method for processing an input signal in a hearing aid, with the input signal being broken down into a discrete signal for each source relative to an acoustic signal, with the discrete signals being assigned to a spatial position of the source and with the discrete signals being output, or output attenuated, relative to the spatial position.
摘要:
A method for operating a hearing aid in a hearing aid system where the hearing aid is continuously learnable for the particular user. A sound environment classification system is provided for tracking and defining sound environment classes relevant to the user. In an ongoing learning process, the classes are redefined based on new environments to which the hearing aid is subjected by the user.
摘要:
For enabling fast, customer-specific and precise matching of a hearing device's directional characteristic, a hearing device having a signal processing unit for performing a processing algorithm is provided, with at least one design-related parameter of the hearing device having been made available to the signal processing unit and with the signal processing unit performing the processing algorithm based on the design-related parameter of the hearing device. It should be considered as especially advantageous in the case of the inventive hearing device that a processing algorithm can be performed particularly precisely and customer-specifically based on the provided design-related parameters of the hearing device.
摘要:
The aim of the invention is to make using a hearing device and in particular a hearing aid more comfortable and more effective for the user. To this end the setting of a portable hearing device is to be checked. First the acoustic data of a sound from the environment of the hearing device is recorded and/or determined simultaneously with the setting of the hearing device with at least one setting value. The setting of the hearing device is evaluated against the chronologically matching, recorded acoustic data in the hearing device using at least one predeterminable criterion. If necessary, the hearing device outputs an appropriate message. By this means a hearing aid wearer can, for example, be alerted to contact an acoustician, if the settings he made on the hearing aid are not effective.
摘要:
The emission of information signals for informing a user about specific settings or statuses of a hearing aid should be improved. In addition, it is proposed to offer the user a plurality of different information signals which he can freely assign to different settings and or statuses of the hearing aid. In addition, different information signals are emitted as a function of the currently available hearing situation and/or the currently set hearing program for one and the same setting and/or for one and the same status of the hearing aid. The user is thus able to better identify the information signals.
摘要:
In a transmission apparatus for transmitting signals to a hearing device, as well as transmission and operating methods thereof, and a hearing aid apparatus, not only the acoustic path but also an electromagnetic path are used to transmit the same signal. So that the data rate can be reduced for low power consumption, only the envelope of the useful signal is transmitted electromagnetically. This allows a useful signal to be transmitted from one hearing device to another hearing device electromagnetically with low power consumption. The reception-end hearing device then restores the source signal, containing interference, with the electromagnetically transmitted envelope to produce an output signal.