Abstract: A wireless pocket transmitter having a rear side, a front side and a receiving compartment for a rechargeable battery. The receiving compartment has a rear wall which at least partially forms a part of the rear side, two side surfaces and a connecting portion with electrical contacts. The two side surfaces are each coupled with a first side to the rear wall and with a first end to the connecting portion. The second ends of the side surfaces each have a respective guide for the battery. The guides do not extend along the entire length of the side surface and the guide has two projections and a passage therebetween.

Abstract: There is provided an earpiece or a headset comprising an audio input for receiving an audio signal to be reproduced, at least one electroacoustic reproduction transducer, an audio unit for effecting audio processing of the received audio signal, at least one converter unit for extracting power from the audio signal received at the audio input, a power storage means for at least partial intermediate storage of the power extracted from the audio signal, and a power control unit for controlling the extraction of the power from the audio signal and for controlling a power supply of the audio unit, in particular by way of the power stored in the power storage means and extracted from the audio signal.

Abstract: There is provided a high-frequency HF transmitter for wireless microphones, guitar transmitters or pocket transmitters. The transmitter has at least one antenna, a power amplifier for amplifying a high-frequency audio signal, an interference signal detection unit for detecting an interference signal coupled in by way of the antenna, a power detector at the output of the detection unit for detecting the power of the interference signals detected by the interference signal detection unit and an operating point regulating unit for adjusting the operating point power of the power amplifier in dependence on the power of the output signals, that is detected by the power detector.

Abstract: A digital audio transmission system, in particular a wireless microphone or wireless pocket transmitter system. The audio transmission system has at least one wireless transmitter and at least one wireless receiver. The wireless transmitter has an analog input, a digitally adjustable input potentiometer for adjusting the input gain, an analog/digital converter for converting the analog signals into digital signals, a digital signal processing unit for performing digital signal processing, and a digital or a digitally adjustable output potentiometer for adjusting the output gain. The digital signal processing unit is adapted to adjust the gain of the digital input potentiometer and/or the digital output potentiometer in such a way that the dynamic range of the analog/digital converter is optimally utilized.

Abstract: An audio transmission system including a wireless digital microphone unit which detects audio signals and wirelessly transmits the detected audio signals based on adjustable transmission settings and transmission parameters, and a central unit. The central unit has a monitor unit for monitoring and analyzing a frequency spectrum of an available frequency band, a link adaptation unit which adapts the microphone's transmission settings and parameters based on the results of the monitor unit, and a transmitting/receiving unit for receiving wirelessly transmitted audio signals from the wireless microphone unit and for transmitting transmission settings and transmission parameters via a return channel to the wireless microphone unit.

Abstract: There is provided a method of producing acoustic damping elements having an acoustic resistance. For that purpose at least one sleeve with a hole having a diameter is placed below a base material. At least one hole is stamped in the base material by at least one punch having a punch diameter. The punching operation is repeated at various positions on the base material.

Abstract: An electrostatic transducer has two oppositely disposed counter-electrodes and a diaphragm which is disposed between the two counter-electrodes and which has a first weakly conductive coating. In its edge region the diaphragm has a second well-conductive coating on the first coating to protect the latter.

Abstract: There is provided a stereo microphone unit having a first and a second interference tube which are arranged at an angle relative to each other and which respectively have a first end and a second end. The stereo microphone unit has a first and a second microphone capsule for detecting an audio signal. The microphone capsules are respectively provided at an end of the first and second interference tubes. The microphone unit further has a securing unit for jointly securing the first and second interference tubes, in particular to a mobile device or to a stand. There is also a cover as a wind protector which is connected to the securing unit and completely encloses the first and second interference tubes.

Abstract: A headphone unit comprising a headphone, a headphone pre-amplifier for pre-amplification of an audio signal to be reproduced, and a cable between the headphone pre-amplifier and the headphone. The headphone has two symmetrically designed electrostatic transducers in the push-pull mode of operation. The pre-amplifier is adapted to output an audio signal to be reproduced by way of a first amplifier stage as a voltage-amplified audio signal at an output. The headphone has second amplifier stages which are in the form of high-voltage amplifier stages which are supplied by way of the cable with a pre-amplified audio signal to be reproduced and a high-voltage supply.

Abstract: A method of adjusting an audio signal equalizer setting. A first and a second equalizer setting are selected from a population of equalizer settings for undergoing a binary comparing decision. The two equalizer settings are presented to a user by consecutively replaying an audio signal filtered by an equalizing unit according to the first or to the second equalizer setting respectively. The user's binary comparing decision between the first and the second equalizer setting according to his preferences is acquired. Further binary comparing decisions are performed until all members of the settings population have been part of a binary comparing decision. A score for the each presented equalizer settings is adapted based on the user's binary comparing decisions results. A weighted averaging is performed, based on the scores, in the frequency domain between the equalizer settings that received a high score, to obtain the result of the equalizer adjustment method.

Abstract: Thus there is provided a guitar amplifier microphone unit including at least one microphone capsule having a respective microphone capsule holder and a frame for holding the at least one microphone capsule holder. The at least one microphone capsule holder is arranged displaceably and/or rotatably on the frame.

Abstract: A conference system including a microphone array unit having a plurality of microphone capsules arranged in or on a board mountable on or in a ceiling of a conference room. The microphone array unit has a steerable beam and a maximum detection angle range. The conference system further includes a processing unit which is configured to receive the output signals of the microphone capsules and to steer the beam based on the received output signal of the microphone array unit. The processing unit is configured to control the microphone array to limit the detection angle range to exclude at least one predetermined exclusion sector in which a noise source is located.

Abstract: A microphone having a microphone capsule is provided. The microphone capsule has a diaphragm carrier, a diaphragm and an adhesive tape ring which is used to fasten the diaphragm to or in the diaphragm carrier. The microphone capsule is in the form of a dynamic sound transducer. A dynamic sound transducer for headphones, earphones or headsets is also provided. The sound transducer has a diaphragm carrier, a diaphragm and a moving coil which is coupled to the diaphragm. In a similar manner to the microphone capsule, the sound transducer has an adhesive tape ring between the diaphragm and the diaphragm carrier, which ring is used to fasten the diaphragm to the diaphragm carrier.

Abstract: An electrodynamic sound transducer has a diaphragm, a dome and a surround and a voice coil. The sound transducer further has a first magnet ring and a second magnet ring as part of the magnet system, the first magnet ring and second magnet ring being arranged on opposite sides of the diaphragm. The voice coil is coupled with the diaphragm and is arranged approximately on or outside of the circumference of the first magnet ring and second magnet ring.

Abstract: A wireless audio transmission system which has at least one wireless transmitter for the wireless transmission of a detected audio signal as a first audio signal by way of a first wireless transmission path. The wireless audio transmission system further has at least one in-ear monitor unit for directly receiving the first audio signal and for receiving a second audio signal. The first and second audio signals are mixed in the in-ear monitor unit and output as an output signal. The wireless audio transmission system has a mixing desk for mixing the first audio signal and further received audio signals to give an output signal which can be output to the public or recorded.

Abstract: An audio processing unit having a first and second input for receiving output signals of a microphone with a first and a second physically symmetrically structured microphone capsule. The audio processing unit further has a first filter unit and a first delay unit which is coupled to the first input, and a second filter unit and a second delay unit which is coupled to the second input. The audio processing unit further has an adding unit for adding signals from the first and second filter units and a control unit for influencing the filter parameters of the first and second filters and/or the delay times of the first and second delay units depending on an amplitude of an audio signal received via the first and/or second input. A directivity factor of the output signal of the microphone is controlled depending on the amplitude of the output signal of the microphone.

Abstract: A planar dynamic sound transducer comprising a planar diaphragm having at least one electrical conductor, and a planar magnet arrangement having a first portion, a second portion, and an edge region. The second portion surrounds the first portion and extends between the first portion and the edge region of the magnet arrangement. The first portion contains a first plurality of openings so that the first portion has a first degree of opening. The second portion contains a second plurality of openings so that the second portion has a second degree of opening. The first degree of opening is greater than the second degree of opening.

Abstract: Method and devices for providing surround audio signals are provided. Surround audio signals are received and are binaurally filtered by at least one filter unit. In some embodiments, the input surround audio signals are also processed by at least one equalizing unit. In those embodiments, the binaurally filtered signals and the equalized signals are combined to form output signals.

Abstract: A casing unit is provided that includes a cylindrical peripheral wall portion of quartz or glass, a cover of metal, and a fixing unit configured to fix the casing unit in or to a housing of a hi-fi tube amplifier. Also provided is a hi-fi audio tube amplifier that includes a plurality of tubes configured to amplify audio signals, and a plurality of the afore-mentioned casing units. Each casing unit encloses one tube of the plurality tubes at three sides, and the fixing unit of each casing unit is configured to fix the respective casing unit in or to a housing of the hi-fi audio tube amplifier.

Abstract: There is provided a microphone unit for recording audio signals comprising an audio processing unit for processing the recorded audio signals, a detection unit for detecting metadata belonging to the audio signal, and a first transmitting and receiving unit for transmitting the processed audio signal and the metadata.