Abstract: The invention relates to a loudspeaker system as well as a loudspeaker with controllable directivity as well as a method for controlling the individual sound transducer units in order to obtain a given target directivity. The loudspeaker comprises a plurality of sound transducer units distributed over two or more surfaces of a body. Each of the sound transducer units are utilized for frequency dependent a) level/gain adjustment and b) delay/phase adjustment of each individual sound transducer unit. The sound emitting transducer units are organized in two or more transducer arrays where the physical placement of transducer units included in the at least two or more transducer unit arrays are symmetrical organized and mirrored around a common axis.

Abstract: The invention relates to a loudspeaker system as well as a loudspeaker with controllable directivity as well as a method for controlling the individual sound transducer units in order to obtain a given target directivity, where said loudspeaker comprises a plurality of sound transducer units distributed over two or more surfaces of a body, each of said of sound transducer units being controlled by means being frequency dependent a) level/gain adjustment and b) delay/phase adjustment of each individual sound transducer unit. The sound emitting transducer units being organized in two or more transducer arrays where the physical placement of transducer units included in the at least two or more transducer unit arrays are symmetrical organized and mirrored around a common axis.

Abstract: The invention relates to a sound-emitting device with controllable directivity comprising a plurality of sound sources (7) distributed over the surface of a body 5, each of said sound sources (7) being driven by a separate power amplifier (12), the input terminal of which is provided with the output signal from a corresponding filter (10), such that the frequency response of each individual sound source (7) can be controlled, where each filter (10) is provided with an input signal (11) corresponding to a plurality of input channels Ch1, Ch2 . . . ChN. The body (5) could according to one embodiment of the invention comprise a cylindrical body provided with end pieces (6) at either longitudinal end. The present invention furthermore relates to a method for controlling the individual sound sources of the sound-emitting device in order to obtain a given target directivity.