Loudspeaker, signal processor, method for manufacturing the loudspeaker, or method for operating the signal processor by using dual-mode signal generation with two sound generators

A signal processor for generating a control signal for a loudspeaker with a first sound generator and with a second sound generator, wherein the control signal comprises a first sound generator signal for the first sound generator and a second sound generator signal for the second sound generator, comprising:

• an input for receiving a channel signal for the loudspeaker;
• a signal combiner configured to overlap a common-mode signal with a first push-pull signal so as to acquire the first sound generator signal, and to overlap the common-mode signal with a second push-pull signal so as to acquire the sound generator signal, wherein the second push-pull signal differs from the first push-pull signal;
• and wherein the signal processor is configured to derive the common-mode signal or the first and the second push-pull signal from the channel signal for the loudspeaker, and
• an output interface for outputting the first sound generator signal and the second sound generator signal.

A method for operating a signal processor for generating a control signal for a loudspeaker with a first sound generator and with a second sound generator, wherein the control signal comprises a first sound generator signal for the first sound generator and a second sound generator signal for the second sound generator, comprising:

• receiving a channel signal for the loudspeaker;
• combining signals to overlap a common-mode signal with a first push-pull signal so as to acquire the first sound generator signal, and to overlap the common-mode signal with a second push-pull signal so as to acquire the sound generator signal, wherein the second push-pull signal differs from the first push-pull signal;
• and wherein the common-mode signal or the first and the second push-pull signal are derived from the channel signal for the loudspeaker, and
• outputting the first sound generator signal and the second sound generator signal.

A non-transitory digital storage medium having a computer program stored thereon to perform the method for operating a signal processor for generating a control signal for a loudspeaker with a first sound generator and with a second sound generator, wherein the control signal comprises a first sound generator signal for the first sound generator and a second sound generator signal for the second sound generator, the method comprising:

• receiving a channel signal for the loudspeaker;
• combining signals to overlap a common-mode signal with a first push-pull signal so as to acquire the first sound generator signal, and to overlap the common-mode signal with a second push-pull signal so as to acquire the sound generator signal, wherein the second push-pull signal differs from the first push-pull signal;
• and wherein the common-mode signal or the first and the second push-pull signal are derived from the channel signal for the loudspeaker, and
• outputting the first sound generator signal and the second sound generator signal,
• when said computer program is run by a computer.