Abstract: A microphone array device including microphone capsules and at least one processing unit configured to receive output signals of the microphone capsules, dynamically steer an audio beam based on the received output signal of the microphone capsules, and generate and provide an audio output signal based on the received output signal of the microphone capsules. The processing unit is configured to operate in a dynamic beam mode where at least one focused audio beam is formed that points towards a detected audio source and in a default beam mode where a broader audio beam is formed that covers substantially a default detection area. The microphone array may be incorporated into a conference system.

Abstract: Audio reproduction systems include a plurality of loudspeakers that are actuated in accordance with a multi-channel audio format. The loudspeakers can be configuratable by way of a network interface The loudspeakers are registered on the network.

Abstract: For mobile devices used in a wireless audio transmission system, for example for stage technology, like wireless microphones, body-pack transmitters with an audio input, and body-pack receivers with an audio output, electronic displays are known, on which a respective radio frequency or radio channel in use or other alphanumeric information is displayed. This information can be input at the transmitting end, for example, at a central location like a mixing desk. The displays, however, only function while the mobile devices are switched on so that it is not possible to see the association(s) of the mobile device(s) in their switched-off state.

Abstract: An earphone and connection cable can be connected to the housing of the earphone with a robust and reliable plug connection. The plug connection includes a coaxial plug having rotationally symmetrical plug contacts and is surrounded with a plastic encapsulation. When the plug connection is inserted the plastic encapsulation forms a first bearing location for receiving mechanical forces acting laterally on the plug while at least one of the plug contacts of the coaxial plug forms a second bearing location for receiving such forces. The distance from the first to the second bearing location in that case is greater than the diameter of the plug contacts of the coaxial plug.

Abstract: A conference system is provided that includes 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 comprises 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 wireless headphone including two wireless earphones and a charging band. In normal operation, the wireless earphones are each worn in an ear of a user and are not connected to each other via cables, and each include a first rechargeable battery. When the first rechargeable batteries are running low, the charging band can be connected to the wireless earphones so as to recharge the first rechargeable batteries on the go without interrupting the use of the wireless earphones.

Abstract: A microphone array device including microphone capsules and at least one processing unit configured to receive output signals of the microphone capsules, dynamically steer an audio beam based on the received output signal of the microphone capsules, and generate and provide an audio output signal based on the received output signal of the microphone capsules. The processing unit is configured to operate in a dynamic beam mode where at least one focused audio beam is formed that points towards a detected audio source and in a default beam mode where a broader audio beam is formed that covers substantially a default detection area. The microphone array may be incorporated into a conference system.

Abstract: During telephone calls in a public space, users may be reluctant to provide private or secret information, due to the risk of eavesdropping. A hands-free solution for entering secret information to electronic speech communication devices is based on speech processing. A method for speech processing a voice input data stream comprises steps of scanning the voice input data stream and detecting a spoken delimiter therein, determining a predefined audio sample corresponding to the detected spoken delimiter, inserting the determined predefined audio sample into the voice input data stream at the spoken delimiter, wherein a substituted voice data stream is obtained and wherein speech portions of the voice input data stream at least before the spoken delimiter remain in the substituted voice data stream, and providing the substituted voice data stream for output towards a recipient.

Abstract: For mobile devices used in a wireless audio transmission system, for example for stage technology, like wireless microphones, body-pack transmitters with an audio input, and body-pack receivers with an audio output, electronic displays are known, on which a respective radio frequency or radio channel in use or other alphanumeric information is displayed. This information can be input at the transmitting end, for example, at a central location like a mixing desk. The displays, however, only function while the mobile devices are switched on so that it is not possible to see the association(s) of the mobile device(s) in their switched-off state.

Abstract: A conference system is provided that includes 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 comprises 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: An audio system comprising a control circuit, at least one loudspeaker and at least one subwoofer for reproducing audio signals at low frequencies. The control circuit comprises an input connector and a bass management circuit that comprises a first filter with a low-pass for pre-filtering audio signals for the subwoofer and a second filter for pre-filtering audio signals for the loudspeaker. The loudspeaker comprises a high-pass filter wherein in a transition frequency range of the amplitude responses of the first filter and the high-pass filter both filters raise or attenuate the audio signals such that the audio system overall, without considering the second filter, has a wavy amplitude response in the transition frequency range. The second filter however comprises at least one parametric filter that is adapted for flattening the amplitude response in the transition frequency range.

Abstract: A planar dynamic sound transducer includes a magnet arrangement which for example comprises bar magnets and a fixing frame, and a diaphragm arrangement. The diaphragm arrangement has a tensioned diaphragm film (diaphragm for short), a tensioning device for the diaphragm, and a conductor structure applied to the diaphragm. When the conductor structure is conventionally provided with electrical connections mechanically sensitive connections and/or high transfer resistances often occur. An improved diaphragm arrangement for a planar dynamic sound transducer includes a support frame having at least one contacting surface, and a diaphragm tensioned on the support frame, and which at least one electrically conductive conductor track is applied by coating. At least one end of the conductor track applied by coating extends on to the contacting surface of the support frame. The connecting line can be connected to the contacting surface of the support frame by way of a solder join.

Abstract: There is set forth a method and a system for recording and synchronizing audio and video signals. The audio signal and the video signal are stored together with time stamps from a respective associated system clock. The invention relates to an adaptation of the duration of the recorded audio sequence to the duration of an associated video sequence in order to level out differences in synchronization of the two system clocks. Alignment of the two system clocks is also introduced, which is based on a data transfer which has variable waiting times for the access to a transmission channel. This thus permits clock alignment with means as are available for example on a smartphone.

Abstract: An earphone and connection cable can be connected to the housing of the earphone with a robust and reliable plug connection. The plug connection includes a coaxial plug having rotationally symmetrical plug contacts and is surrounded with a plastic encapsulation. When the plug connection is inserted the plastic encapsulation forms a first bearing location for receiving mechanical forces acting laterally on the plug while at least one of the plug contacts of the coaxial plug forms a second bearing location for receiving such forces. The distance from the first to the second bearing location in that case is greater than the diameter of the plug contacts of the coaxial plug.

Abstract: An electrodynamic sound transducer that includes a chassis, a membrane with a hole in the centre of the membrane, a moving coil, a magnetic system, and a resonator that is placed in the hole in the centre of the membrane.

Abstract: Loudspeaker systems, which for technical reasons are not suitable for emitting strong bass signals, can use so-called virtual bass systems. Therein, low frequencies are replaced by their harmonics. However, virtual bass cannot always adequately replace real bass, such that tonal discrepancies may result. Methods and systems are disclosed to improve the bass reproduction of virtual bass by mixing the generated harmonics with a reduced original bass component of the input audio signal. The mixing ratio of this blend can be variable and can be determined automatically. For example, the mixing ratio can change when a level threshold is exceeded, when a temperature rises above/drops below a threshold, a calorimetric threshold is exceeded, or at fixed times of day.

Abstract: A wireless headphone including two wireless earphones and a charging band. In normal operation, the wireless earphones are each worn in an ear of a user and are not connected to each other via cables, and each include a first rechargeable battery. When the first rechargeable batteries are running low, the charging band can be connected to the wireless earphones so as to recharge the first rechargeable batteries on the go without interrupting the use of the wireless earphones.

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: A control unit for an audio system including a subwoofer and at least one further loudspeaker. Type information is recorded via the at least one connected loudspeaker, and a configurable filter for the at least one connected loudspeaker is configured by means of appurtenant configuration information from a memory. The configurable filter is configured so that a base phase management is provided for the transition frequency range between the subwoofer and the at least one connected loudspeaker so that the phase of the sound signals of the subwoofer is matched to the phase of the sound signals of the at least one connected loudspeaker.