Abstract: There is provided a headphone having an over-the-head headband which is of an arcuate configuration and spans a central plane. The headphone has at least one spacer element which is fixedly connected to an end of the over-the-head headband and projects out of the central plane, at least one articulation which is fixed to the spacer element at a spacing relative to the central plane and at least one ear cap which is coupled pivotably by way of the at least one articulation to the spacer element. The articulation is so provided that its pivot axis is substantially perpendicular to the surface of the head of a user of the headphone so that the ear cap can be pivoted by means of the articulation from a first position in which it covers an ear of the user into a second position in which the ear is exposed.

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 digital wireless audio transmission system having a wireless receiving unit for wirelessly receiving a high-frequency signal. An HF analysis unit analyzes the received high-frequency data, detects errors in the transmission within a time window, and outputs the received data and first items of information in respect of the detected errors. A decoding unit converts/decodes the received high-frequency data into audio data. An error detection unit checks errors in the conversion of the decoding unit within a previously established time window and outputs second items of information in respect of errors during decoding of the received high-frequency data. An error rate is determined based on the first and second items of information. If the error rate exceeds a first threshold value then no audio signal is outputted. Only if the error rate falls below a second value, lower than the first value, is an audio output is then again effected.

Abstract: There is provided a microphone unit (1) for an action camera, comprising a microphone capsule (10) having at least one speaking hole (11), and a water-tight enclosure (20) which water-tightly encloses the microphone capsule (10). The water-tight enclosure (20) has a water-impermeable passive diaphragm (25) which can oscillate freely and which allows incoming sound to pass substantially undisturbed. The microphone unit has a head (30) having a plurality of holes (31), the head (30) being provided outside the enclosure (20) in front of the passive diaphragm (25). The microphone unit further has a foam portion (40) which is provided in front of the head (30) and has an open-pore foam. The foam portion (40) is in contact with the head (30). The passive diaphragm (25) has an oscillatable minimum area of 20 mm2; wherein the foam portion (40) has pores which are sufficiently small so that the foam portion (40) can suck water residues away from the holes (31) in the head (30) like a sponge.

Abstract: A method for manufacturing an electrodynamic transducer from a membrane system module and a magnet system module is disclosed. The membrane system module comprises an annular first chassis unit made by injection-molding and a diaphragm fixed thereon. A coil is fixed on a coil seat of the diaphragm. The magnet system module comprises a pole piece, a magnet and a yoke that each have a central hole, and a second chassis unit that is made by injection-molding and that fills the central holes in the pole piece, the magnet and the yoke. It surrounds the yoke at least partially, so that the pole piece, the magnet and the yoke are held. In the transducer, the membrane system module and the magnet system module are plugged together, wherein an annular recess on the lower side of the first chassis unit is arranged on a circumferential shoulder of the second chassis unit. This defines a position of the coil relative to the pole piece, to the magnet and to the yoke of the magnet system module.

Abstract: A headphone having a first and a second ear pad each having a housing, a peripherally extending ear cushion, and a first electroacoustic reproduction transducer that emits sound outwardly, which is arranged in or on the housing of the ear pad. At least one second reproduction transducer emits sound toward a user's ear. In a first operating position, the ear pads are placed with the ear cushion on or around an ear. In a second operating position, the ear cushions of the first and second ear pads bear against each other so that provided therebetween is a closed volume that serves as a resonance chamber for the two first electroacoustic reproduction transducers when the two electroacoustic reproduction transducers are activated in the second operating position.

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 device comprising a surrounding ear pad and a sound generator which has a substantially rigid plate and a drive system for converting electrical signals into mechanical oscillations of the plate.

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 method for controlling an audio amplifier unit having an audio input, an amplifier, a volume regulation unit and an audio output. An audio signal is received via the audio input and is amplified by the amplifier, and an adjustment procedure modifies an operating curve of the volume regulation unit for the received audio signal. From a modified setting of the volume regulation unit, a modified amplification value is calculated according to a first volume operating curve. The amplifier's amplification is modified to match the modified amplification value, and a second volume operating curve is determined and assigned to the calculation of modified amplification values of the amplifier. The modified amplification value is substantially at the center of the second volume operating curve. Further, the volume regulation unit is adjusted mechanically or electrically to a predefined position.

Abstract: A method for transmission and low-latency real-time output and/or processing of an audio data stream that is transmitted from at least one transmitter to at least one receiver over a jittering transmission path. The method includes a calibration for determining a distribution of latencies in transmission of packets of the audio data stream, whereby a group of packets of the audio data stream is used as calibration packets and wherein a reference time grid and an offset of a fastest calibration packet are determined. Then, a shift of an output time grid for audio output and/or processing, based on the reference time grid and the determined offset of the fastest calibration packet, and the audio packets of the audio data stream are provided according to the output time grid for audio output and/or processing.

Abstract: There is provided a wireless camera receiver that includes a housing, a wireless receiving unit for receiving a wirelessly transmitted audio signal, and an XLR connection. The XLR connection is adapted to be rotatable with respect to the housing.

Abstract: An ear-canal earpiece having an electroacoustic sound transducer, a sound guide unit having a first and a second end for guiding the sound from the electroacoustic sound transducer to an ear of a user and at least one portion. The ear canal earpiece has a canal having a first end open towards the ear canal and a second outwardly open end. A diaphragm is provided in the canal and extends over the entire cross-section of the canal.

Abstract: A method for wirelessly transmitting audio signals based on the Bluetooth protocol from a Bluetooth audio source to a computer device (audio sink). An audio signal is converted in the Bluetooth audio source into an audio data packet. The audio data packets are converted into L2CAP data packets in the Bluetooth audio source based on a protocol with access to the L2CAP layer, and wirelessly transmitted. The Bluetooth audio source suppresses renewed transmission of L2CAP data packets which were erroneous or which were not received by the sink. Real-time transmission or reproduction of the audio stream or the audio signal can thus be effected. The audio stream or an audio signal on the L2CAP layer may be transmitted with a reduced repetition rate in respect of erroneous data packets. Access to RFCOMM or another data transport protocol with access to the L2CAP layer can be provided from the application layer.

Abstract: A device which produces the necessary directional audio signals for a 3-dimensional audio playback and which in that case uses as input signals the available channels of an audio recording intended for 2-dimensional audio playback. By taking psychoacoustic effects into account the desired spatial 3D audio effect is produced by a targeted use of signal delays, frequency-dependent amplitude matchings and a limited use of reverberation effects in conjunction with a targetedly asymmetric processing.