Patent ID: 8165322

Claim:
A circuit for processing sound signals, comprising: an input amplifier amplifying an input signal; an output amplifier; a primary signal path connected between the input amplifier and the output amplifier and supplying the amplified input signal to the output amplifier unchanged; a first adjusting device for statically adjusting a first portion of the amplified signal transmitted via the primary signal path; at least one secondary signal path connected between the input amplifier and the output amplifier and supplying a processed amplified input signal to the output amplifier; an second adjusting device for statically adjusting a second portion of the amplified signal transmitted via the at least one secondary signal path, wherein the at least one secondary signal path further comprises an equalizing filter for filtering a corresponding frequency range, the equalizing filter including an integrated dynamic circuit for dynamically changing frequency, amplitude and phase depending on the signal in conjunction with a static control, wherein the integrated dynamic circuit is configured to be switched on and switched off, and wherein the equalizing filter with the integrated dynamic circuit is a variable RC-filter having a different frequency bands and filter characteristics, with the variable RC filter being dynamically controlled by a negative feedback path.