Sennheiser Electronic Gmbh & Co Kg

Tom-Fabian Frey

Sven Wachtendorf

Jan Watermann

Manfred Hibbing

Sebastian Rieck

Markus Thiele

Daniel Schlessinger

Stephan Scherthan

Andreas Hermerding

Thomas Musialik

Satheesh Sukumar

Christoph Musialik

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.

Digital wireless audio transmission system

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.

Digital wireless audio transmission system with optimized dynamics

A method of modelling microphone characteristics of a target microphone is provided. An impulse response of target microphones is measured over different angles. A signal conditioning on the measurement data is performed. The spatial response based on a spatial response matching algorithm is matched and filter parameters and/or model parameters are determined.

Microphone and method for modelling microphone characteristics

There is provided an electronic device comprising an FPGA unit (), a first and a second memory () for storing boot data for the FPGA unit and a digital potentiometer () for storing a first and a second setting. In the first setting of the potentiometer the first memory () is coupled to the FPGA unit () and in the second setting of the potentiometer the second memory () is coupled to the FPGA unit () for booting.

Coupling an FPGA unit to a memory using a digital potentimeter

The present invention concerns a feed device for feeding a microphone with a dc voltage. The feed device has first, second and third terminals (a, b, c), a resistor arrangement having at least a one resistor (R-R) and a dc voltage source () for providing a feed voltage. In that case the resistor arrangement is disposed between the dc voltage source () and the first and second terminals (a, b). In addition the feed device has a measuring device and a control device (). The measuring device detects a dc voltage between the first and second terminals and the third terminal, and the control device () reduces or increases the ohmic resistance of the resistor arrangement and the feed voltage of the dc voltage source ().

Power supply device for a microphone

Provided is a digital microphone having a power supply. In this case the power supply is configured so as to provide a P48 V phantom power.

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Braunschweig, Germany

Tom-Fabian Frey