Signal processing device and signal processing method

A signal processing device comprising:

• a filter functioning as a signal processing element having settable filter coefficients for a predefined transfer characteristic;
• an application unit for amplifying or attenuating an output signal of the filter, the application unit configured to compensate partially for an effect of the predefined transfer characteristic of the filter based on a characteristic quantity of an input signal, the compensation being encumbered with a residual error;
• a detection unit for detecting a characteristic quantity representing the characteristic quantity of the input signal of an output signal of the signal processing element, the detection unit configured to output a detection value that represents the characteristic quantity of the output signal;
• a correction unit for applying a predefined correction value to the detection value for the at least partial compensation of the residual error, the correction value being assigned to the predefined transfer characteristic;
• and
• a control unit for setting the predefined filter coefficients of the filter, the predefined amplification or attenuation of the application unit, and the predefined correction value of the correction unit.

A signal processing method comprising:

• processing a signal via a filter as a signal processing element, the filter having settable filter coefficients for a predefined transfer characteristic to obtain an output signal;
• setting the filter coefficients of the filter;
• amplifying or attenuating the output signal by an application unit that is configured to compensate partially for an effect of the predefined transfer characteristic of the filter based on a characteristic quantity of an input signal, the compensation is encumbered with a residual error;
• detecting a characteristic quantity representing the characteristic quantity of the input signal of an output signal of the signal processing element;
• outputting a detection value, which represents the characteristic quantity of the output signal;
• and
• applying a predefined correction value to the detection value for the at least partial compensation of the residual error, the correction value being assigned the predefined transfer characteristic.