Abstract:
The invention relates to a communication system for use in connection with a stationary communication line, the communication system comprising two input/output units, each input/output unit comprising a first connector for connection of a communication line, a second connector for connection of an input/output device, a rechargeable battery and a third connector for connecting a charging voltage to the rechargeable battery, whereby the units comprise transmitters and receivers for communicating wireless a communication signal in one direction from a first input/output unit to a second input/output unit and in another direction from the second input/output unit a communication signal for input to the communication line.
Abstract:
The invention relates to an output reducing system for a telephone system, e.g. implemented in a headset, comprising an input line and an output line, where the input line is transmitting an incoming signal to an output transducer and where the output line in transmitting an outgoing signal from an input transducer, where in connection with the input line a compressor system is provided for reducing the output signal level.
Abstract:
Es wird ein mobiles Konferenzsystem vorgesehen, das eine erste mobile Master-Freisprecheinheit (1100) und mindestens eine zweite mobile Slave-Freisprecheinheit (1200) aufweist, welche jeweils mindestens ein Mikrofon (1130, 1230) zur Aufzeichnung von Audiosignalen, einen Lautsprecher (1140, 1240) zur Wiedergabe von wiederzugebenen Audiosignalen, eine Akkumulatoreinheit (1010) zur Energieversorgung, eine Bedieneinheit (1110, 1210), mindestens eine Leuchteinheit (1121, 1221) und eine erste Sende/Empfangseinheit (1150, 1250) zur bidirektionalen drahtlosen Kommunikation zwischen der ersten und zweiten mobilen Freisprecheinheit (1100, 1200) aufweisen, Die erste Freisprecheinheit (1100) weist eine zweite Sende/Empfangseinheit (1160) zur drahtlosen bidirektionalen Audio-Kommunikation mit einer externen Einheit auf. Die erste Freisprecheinheit (1100) ist dazu ausgestaltet, Audiosignale, welche über die zweite Sende/Empfangseinheit (1160) von der externen Einheit empfangen wurden, durch die erste Sende/Empfangseinheit (1150) drahtlos an die zweite mobile Freisprecheinheit (1200) zu übertragen. Die erste Freisprecheinheit (1100) ist dazu ausgestaltet, Audiosignale, welche über die erste Sende/Empfangseinheit (1150) von der zweiten mobilen Freisprecheinheit (1200) empfangen wurden mit über das mindestens eine Mikrofon (1130) der ersten Freisprecheinheit (1100) aufgezeichneten Audiosignalen zu mischen und durch die zweite Sende/Empfangseinheit (1160) drahtlos an die externe Einheit zu senden.
Abstract:
The application relates to a communication device, e.g. a speakerphone, comprising a microphone signal path, MSP, and a loudspeaker signal path, SSP, the microphone signal path comprising a microphone unit, an MSP-filter, and a transmitter unit operationally connected to each other and configured to transmit a processed signal originating from an input sound picked up by the microphone, the loudspeaker signal path comprising a receiver unit, an SSP-filter, and a loudspeaker unit operationally connected to each other and configured to provide an acoustic sound signal originating from a signal received by the receiver unit. The communication device comprises a control unit for dynamically controlling the filtering characteristics of the MSP and SSP-filters based on one or more control input signals. This has the advantage of providing a simple and flexible scheme for decreasing echo in a communication device, while ensuring an acceptable sound quality in the transmitted signal.
Abstract:
The application relates to a loudspeaker system including an input unit providing an electric input audio signal; an equalization unit for modifying said electric input audio signal in dependence on frequency and to provide an equalized electric audio signal according to a predefined equalization function, a loudspeaker unit for converting said equalized electric audio signal to an acoustic output sound signal, and a user interface for modifying a volume level of said output sound signal in a multitude (N) of steps V0, V1, . . . , VN. The application further relates to a method communication device comprising the loudspeaker system and to its use. The present application provides an improved loudspeaker system in which the equalization unit is configured to apply a specific equalization function EQ0, EQ1, . . . , EQN to the electric input audio signal in each of said multitude of steps V0, V1, . . . , VN of the volume level.
Abstract:
An audio processing device comprises a multitude of electric input signals, each electric input signal being provided in a digitized form, and a control unit receiving said digitized electric input signals and providing a resulting enhanced signal. The control unit is configured to determine the resulting enhanced signal from said digitized electric input signals, or signals derived therefrom, according to a predefined scheme.