Abstract: An EEG monitoring system (2) adapted to be carried continuously by a person to be monitored comprises electrodes for measuring at least one EEG signal from the person carrying the EEG monitoring system (2). The system also comprises signal processing means adapted to receive, process and analyze the EEG signal. Furthermore the system comprises data logging means adapted to log data relating to said EEG signal and a memory for storing said data relating to said EEG signal. A method of using the monitoring system is also provided.

Abstract: A hearing aid (1) includes a housing (2), at least a first microphone for receiving ambient sound, processing circuitry for processing a signal from the first microphone (6, 7) and an output transducer. At least one further microphone (8) is disposed in the hearing housing at a location, which, during normal use of the hearing aid, is sheltered against wind influences.

Abstract: A hearing aid system comprising means (304) for receiving a multi-channel digitally encoded audio signal (301) and means (306) for rendering said received multi-channel signal into a binaural stereo signal. The invention further provides a method for replaying audio streams in hearing aids.

Abstract: A hearing aid is provided which has at least one input transducer for providing an input signal, at least one signal processing channel receiving at least a portion of said input signal, a hearing aid processor for processing said portion of said input signal to produce at least one output signal, an output transducer responsive to said output signal, and a data logger receiving said portion of said input signal for logging of input signal data. The data logger comprises a characterisation unit for characterising and logging parameters of the input signal data, and a memory unit for storing said parameters.

Abstract: A directional hearing aid (100) comprising at least two microphones (201, 202) has means (200) for matching differences in amplitude and phase between the two microphones (201, 202). The microphone matching means (200) compare differences between measured transfer functions of the microphone signal paths at a number of frequencies during use of the hearing aid (100), compares the differences to differences at similar frequencies in a model of the transfer functions of the microphone signal paths, derives a set of parameters based on the comparison, and adjusts the parameters in order to minimize the difference in level differences between the model and the microphones (201, 202). The model is then used to match the microphones (201, 202) mutually by applying appropriate control parameters (103, 104, 105, 106) to an adaptive matching filter (108) carrying one of the microphone signals.

Abstract: The present invention relates to a hearing aid (1) comprising a housing (2), at least a first microphone for receiving ambient sound, processing means for processing a signal from the first microphone (6, 7) and an output transducer. At least one further microphone (8) is disposed in said hearing housing at a location, which, during normal use of the hearing aid, is sheltered against wind influences.