Abstract: A loudspeaker enclosure comprising a plurality of acoustic sources and having controlled broad-band directivity.

Abstract: The present invention relates to a spatial arrangement for optimizing the broadcasting of a sound signal and thus replacing the conventional stereo systems. For this purpose, the spatial arrangement is capable of broadcasting a spatialized sound signal, the spatialized sound signal comprising N mutually distinct audio signals, N being an integer strictly greater than 3, and the spatial arrangement comprising a set of N sound broadcasting devices predominantly distributed over the entire width of a scene. Each sound broadcasting device receives an audio signal of which it will amplify and broadcast the transmitted sound. In particular, each sound broadcasting device is specifically capable of reproducing and preserving the characteristics of the sound transmitted by the audio signal received, in particular the sound frequency bands and the sound intensity of the frequency bands of the audio signal.

Abstract: The present invention relates to a sound diffusion device (300) comprising a single box (310) and, in this single box (310), at least two superimposed high-frequency acoustic sources (320), and a plurality of superimposed medium and/or low-frequency sources (330) and arranged to the left and/or to the right of the high-frequency acoustic sources (320), the high-frequency acoustic sources (320) being coupled individually to a wave guide (340) so as to generate a vertical wave front with a fixed non-constant curvature. Such a device (300) makes it possible to minimise discontinuities between the acoustic sources providing high quality sound diffusion (no parasite lobe), to considerably reduce the weight and the cost of manufacturing and also enables rapid installation which does not require the angular adjustment of each acoustic source relative to one another contrary to existing devices.

Abstract: A subject of the present invention is an enclosure fastening module, characterized in that the module comprises a longitudinal movable dowel, mounted on a dowel support, said dowel support being capable of moving both longitudinally and transversely relative to the module, said dowel being movable between a “locking” longitudinal position and an “unlocking” longitudinal position, the module further comprising a stop capable of longitudinally retaining the dowel support when it is in a first transverse position of its locking position and allowing a longitudinal movement of the dowel support when it is in a second transverse position of its locking position.

Abstract: A signal processing system and method is disclosed for applying time-based effects to an N-channel audio input signal for reproduction on a set of loudspeakers having a predetermined configuration. A first M-channel audio signal is produced from the N-channel audio input signal. Each channel of the first M-channel audio signal is associated with a subset of the loudspeakers. A second M-channel audio signal is produced from the first M-channel audio signal according to an M×M matrix, each element aij in the M×M matrix including a delay term. A minimum value of the delay term in each element aij is determined according to a distance between at least two loudspeakers in at least one of the i and j subsets of loudspeakers and according to minimum delay value of a time-based delay effect applied to each channel of the second M-channel audio signal. A K-channel audio signal is then produced from the or each second M-channel audio signal.

Abstract: The present invention relates to a sound diffusion device (300) comprising a single box (310) and, in this single box (310), at least two superimposed high-frequency acoustic sources (320), and a plurality of superimposed medium and/or low-frequency sources (330) and arranged to the left and/or to the right of the high-frequency acoustic sources (320), the high-frequency acoustic sources (320) being coupled individually to a wave guide (340) so as to generate a vertical wave front with a fixed non-constant curvature. Such a device (300) makes it possible to minimise discontinuities between the acoustic sources providing high quality sound diffusion (no parasite lobe), to considerably reduce the weight and the cost of manufacturing and also enables rapid installation which does not require the angular adjustment of each acoustic source relative to one another contrary to existing devices.

Abstract: The invention relates to a sound broadcasting device comprising a high-frequency section including at least one high-frequency acoustic source (SHF), and a medium-frequency section including at least two medium-frequency sources (SMF), the acoustic sources (SHF, SMF) being vertically superposed, where the medium-frequency section comprises a lower sub-section, arranged below the high-frequency section and comprising at least one medium-frequency acoustic source (SMF), and an upper sub-section, arranged above the high-frequency section and comprising at least one medium-frequency acoustic source (SMF), where the vertical directivity of the high-frequency section has an incline, relative to the horizontal (H), that is substantially equal to the incline (?MF) of the vertical directivity of the medium-frequency section relative to the horizontal (H), so that the overall vertical directivity of the device has a non-zero incline (?Dir) relative to the horizontal (H).

Abstract: A method for producing a multi-channel audio signal from one or more sound object signals is disclosed, where, for each sound object signal a plurality of width signals is produced, the amplitudes of the width signals following a substantially Gaussian distribution. The width signals are processed to produce a plurality of pan signals which are mapped to at least one channel. Each channel in the audio signal is produced by combining the pan signals from each sound object. An apparatus for reproducing such a multi-channel audio signal is also disclosed, in which a plurality of first loudspeakers are provided spaced around a first arc forward of a predetermined listening zone, each of the first loudspeakers facing towards the listening zone and substantially equidistant therefrom. A plurality of second loudspeakers are provided spaced around a second arc behind the listening zone, each of the second loudspeakers facing towards the listening zone.

Abstract: The present invention relates to a spatial arrangement for optimizing the broadcasting of a sound signal and thus replacing the conventional stereo systems. For this purpose, the spatial arrangement is capable of broadcasting a spatialized sound signal, the spatialized sound signal comprising N mutually distinct audio signals, N being an integer strictly greater than 3, and the spatial arrangement comprising a set of N sound broadcasting devices predominantly distributed over the entire width of a scene. Each sound broadcasting device receives an audio signal of which it will amplify and broadcast the transmitted sound. In particular, each sound broadcasting device is specifically capable of reproducing and preserving the characteristics of the sound transmitted by the audio signal received, in particular the sound frequency bands and the sound intensity of the frequency bands of the audio signal.

Abstract: A signal processing system and method is disclosed for applying time-based effects to an N-channel audio input signal for reproduction on a set of loudspeakers having a predetermined configuration. A first M-channel audio signal is produced from the N-channel audio input signal. Each channel of the first M-channel audio signal is associated with a subset of the loudspeakers. A second M-channel audio signal is produced from the first M-channel audio signal according to an M×M matrix, each element aij in the M×M matrix including a delay term. A minimum value of the delay term in each element aij is determined according to a distance between at least two loudspeakers in at least one of the i and j subsets of loudspeakers and according to minimum delay value of a time-based delay effect applied to each channel of the second M-channel audio signal. A K-channel audio signal is then produced from the or each second M-channel audio signal.