Equalizer for digitized signals

摘要

In an equalizer with n number of frequency ranges for digitized signals in which by means of n-1 cascaded filter circuits containing parallel connected digital low-pass filters and digital high pass filters whose respective frequency responses are linked by complementary transfer functions. A desired amplitude response is implemented via an increase or decrease in the amplitudes of adjacent frequency ranges in the associated filter circuit by weighting the outputs of the digital high-pass and low-pass filters, and a control unit forms the respective weighting factor from an equalizer control signal which contains the desired amplitude response as information.