Compensation means for a loudspeaker system and loudspeaker system

A loudspeaker system comprising:

• a first loudspeaker group comprising at least one sound transducer, the first loudspeaker group being configured to generate a first sound signal based on an audio signal, the first sound signal comprising a useful signal portion and a distortion signal portion;
• and
• a second loudspeaker group comprising at least one sound transducer, the second loudspeaker group being configured to generate a second sound signal based on a compensation signal, the second sound signal compensating and/or reducing the distortion signal portion when superimposed with the first sound signal;
• wherein the loudspeaker system comprises a calculating unit comprising a signal synthesizer configured to generate the compensation signal starting from information on the distortion signal portion;
• and
• wherein the calculating unit comprises a signal analyzer configured to analyze the first sound signal relative to the useful signal portion and the distortion signal portion and to extract the information on the distortion signal portion;
• wherein the signal synthesizer is configured to invert the extracted distortion signal portion in order to acquire the compensation signal.

A calculating unit comprising a signal synthesizer,

• wherein the signal synthesizer is configured to determine a compensation signal starting from information on a distortion signal portion which, together with a useful signal portion is comprised by a first sound signal generated by a first loudspeaker group on the basis of an audio signal,
• wherein the compensation signal is suitable to compensate and/or reduce the distortion signal portion when outputting the same as a second sound signal via a second loudspeaker group by superpositioning with the first sound signal;
• wherein the signal synthesizer is configured to generate the compensation signal starting from information on the distortion signal portion;
• and
• wherein the calculating unit comprises a signal analyzer configured to analyze the first sound signal relative to the useful signal portion and the distortion signal portion and to extract the information on the distortion signal portion;
• wherein the signal synthesizer is configured to invert the extracted distortion signal portion in order to acquire the compensation signal.

A method for generating a useful signal portion, comprising:

• outputting, using a first loudspeaker group comprising at least one sound transducer, a first sound signal based on an audio output signal, the first sound signal comprising a useful signal portion and a distortion signal portion;
• determining a compensation signal starting from information on a distortion signal portion which, together with a useful signal portion, is comprised by a first sound signal;
• and
• outputting, using a second loudspeaker group comprising at least one sound transducer, a second sound signal based on the compensation signal, the second sound signal compensating and/or reducing the distortion signal portion when superimposed with the first sound signal;
• wherein determining comprises generating the compensation signal starting from information on the distortion signal portion, analyzing the first sound signal relative to the useful signal portion and the distortion signal portion, extracting the information on the distortion signal portion and inverting the extracted distortion signal portion in order to acquire the compensation signal.

A method for calculating a compensation signal, comprising:

• determining a compensation signal starting from information on a distortion signal portion which, together with a useful signal portion, is comprised by a first sound signal generated by a first loudspeaker group on the basis of an audio signal;
• and
• compensating and/or reducing the distortion signal portion when outputting the compensation signal as a second sound signal via a second loudspeaker group by superpositioning with the first sound signal;
• wherein determining comprises generating the compensation signal starting from information on the distortion signal portion, analyzing the first sound signal relative to the useful signal portion and the distortion signal portion, extracting the information on the distortion signal portion and inverting the extracted distortion signal portion in order to acquire the compensation signal.

A non-transitory digital storage medium having stored thereon a computer program for performing a method for generating a useful signal portion, comprising:

• outputting, using a first loudspeaker group comprising at least one sound transducer, a first sound signal based on an audio output signal, the first sound signal comprising a useful signal portion and a distortion signal portion;
• determining a compensation signal starting from information on a distortion signal portion which, together with a useful signal portion, is comprised by a first sound signal;
• and
• outputting, using a second loudspeaker group comprising at least one sound transducer, a second sound signal based on the compensation signal, the second sound signal compensating and/or reducing the distortion signal portion when superimposed with the first sound signal;
• wherein determining comprises generating the compensation signal starting from information on the distortion signal portion, analyzing the first sound signal relative to the useful signal portion and the distortion signal portion, extracting the information on the distortion signal portion and inverting the extracted distortion signal portion in order to acquire the compensation signal;
• when said computer program is run by a computer.

A non-transitory digital storage medium having stored thereon a computer program for performing a method for calculating a compensation signal, comprising:

• determining a compensation signal starting from information on a distortion signal portion which, together with a useful signal portion, is comprised by a first sound signal generated by a first loudspeaker group on the basis of an audio signal;
• and
• compensating and/or reducing the distortion signal portion when outputting the compensation signal as a second sound signal via a second loudspeaker group by superpositioning with the first sound signal;
• wherein determining comprises generating the compensation signal starting from information on the distortion signal portion, analyzing the first sound signal relative to the useful signal portion and the distortion signal portion, extracting the information on the distortion signal portion and inverting the extracted distortion signal portion in order to acquire the compensation signal;
• when said computer program is run by a computer.