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Sound system

  • US 10,306,358 B2
  • Filed: 10/27/2017
  • Issued: 05/28/2019
  • Est. Priority Date: 04/27/2015
  • Status: Active Grant
First Claim
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1. A calculation unit for a sound system comprising an array including a plurality of transducers, the calculation unit comprising:

  • an input terminal for receiving an audio stream to be reproduced using the sound system and including a frequency range;

    a processor; and

    an output terminal for controlling the sound system,wherein the processor is configured to calculate a first plurality of individual audio signals for the transducers of the array such that beamforming is performed by the array, wherein the first plurality of individual audio signals comprises a frequency range corresponding to a first portion of the frequency range of the audio stream,wherein the processor is configured to calculate a second plurality of individual audio signals for the transducers of the sound system to perform, using the sound system, direct sound suppression such that sound is canceled towards a listening direction,wherein the processor is configured to filter the second plurality of individual audio signals using a second passband characteristic comprising a second portion of the frequency range of the audio stream, wherein the second portion differs from the first portion;

    wherein the beamforming performed via the first plurality of individual audio signals is performed by using at least three audio signals such that at least three transducers are controlled;

    wherein the first plurality of audio signals and the second plurality of audio signals are added using the mixer to be output to the one array comprising the transducers of the sound system which are controlled by the first and the second plurality of individual audio signals.

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