Abstract: A digital circuit arrangement for influencing the frequency response of a digital audio signal as a function of frequency and/or amplitude, in which the input signal of the digital circuit arrangement is applied to a signal filter (3) having variable filter coefficients, the output signal of the signal filter (3), after addition to the input signal of the digital circuit arrangement, represents the frequency response-influenced output signal of the digital circuit arrangement, and the coefficients for the signal filter (3) are selected in dependence on the output signal of a control circuit to which the output signal of the signal filter (3) is applied, and which includes a control filter (7), a rectifier (8), a pulse shaper stage (9), a logarithmic circuit (12) and a circuit for determining the coefficients.

Abstract: In a digital circuit arrangement for influencing the frequency response of a digital audio signal, dependent on the frequency and/or amplitude, the input signal of the circuit arrangement is applied to a signal filter (3) having variable filter coefficients, while its output signal represents the frequency response-influenced output signal of the circuit arrangement after addition to the input signal of the circuit arrangement, and the coefficients for the signal filter are selected in dependence upon the output signal of a control branch which receives the input signal of the circuit arrangement and includes a control filter (7), a rectifier (8), a pulse shaper stage (9), a logarithmation circuit (12) and a circuit (6) for determining the coefficients.