Abstract: A beamformer of a hearing instrument is focused by automatically adapting the beam width and/or beam direction. A spatial orientation and/or position of the head of the hearing instrument user is first captured. When no head movements are captured, the acoustic signals are picked up with directional dependency. Then the amplification of acoustic signals is boosted that originate from a focus solid angle in front of the head of the hearing instrument user, compared with acoustic signals from other solid angles. This activates or increases directivity. Then the focus solid angle is decreased to gradually focus and to increase directivity, until the level of acoustic signals from the focus solid angle, actually the presence of the desired signals in the focus solid angle (purely theoretically the probability that the desired signal is present in the focus solid angle), reduces on account of reducing the focus solid angle.

Abstract: A beamformer of a hearing instrument is focused by automatically adapting the beam width and/or beam direction. A spatial orientation and/or position of the head of the hearing instrument user is first captured. When no head movements are captured, the acoustic signals are picked up with directional dependency. Then the amplification of acoustic signals is boosted that originate from a focus solid angle in front of the head of the hearing instrument user, compared with acoustic signals from other solid angles. This activates or increases directivity. Then the focus solid angle is decreased to gradually focus and to increase directivity, until the level of acoustic signals from the focus solid angle, actually the presence of the desired signals in the focus solid angle (purely theoretically the probability that the desired signal is present in the focus solid angle), reduces on account of reducing the focus solid angle.

Abstract: Sound sources are reliably localized using a multichannel hearing system, in particular a binaural hearing system. The method localizes at least one audio source by detecting a signal in a prescribed class, the signal stemming from the audio source, in an input signal in the multichannel hearing system. The audio source is then localized using the detected signal. First, the nature of the signal is established over a wide band and then the location of the source is determined.

Abstract: A mixture for preparation of protective and insulating coatings on metals and metal products which sticks well to metal surfaces, is resistant to high temperatures, has good electrical properties, and provides good heat removal. The mixture includes aluminum oxide, barium oxide, boron oxide, silicon oxide, and aluminum fluoride.

Abstract: Steel products may be coated with an insulating composition by a process which involves coating a uniform layer of finely ground glass powder on the steel and burning it at temperatures ranging from 700.degree.-1000.degree. C. Following, a paste comprising a mixture of the afore-mentioned glass, aluminum oxide and an evaporable liquid are deposited upon the burned coating, dried and burned again at 700.degree.-1000.degree. C.The resultant coatings adhere well to steel and resist temperatures as high as 860.degree. C., so suggesting then use for coating steel destined as a substitute for ceramic supports in electronic and hybrid microelectronic applications.