Sound spatialisation method

Sound spatialisation method including:

• a step of determining digital processing parameters to be applied to sound signals to be broadcast by a set of at least two loudspeakers in order to reproduce a virtual sound source at a desired position;
• a step of restoring sound signals by the loudspeakers during which the digital processing parameters are applied to the sound signals;
• said sound spatialisation method being characterised in that it includes moreover:
• a step of defining a trajectory defined by a set of N points, with two consecutive points of said trajectory being connected together by a curve;
• a step of positioning during which the desired position of the virtual sound source is defined on said trajectory, wherein the position of the virtual sound source is defined during the step of the positioning in the following way:
• a set of projected images is determined, on the trajectory, of a position objective of the virtual sound source, by determining for each curve of said trajectory, an intersection, if it exists, between said segment and a straight line passing through a point defining a position of a listener and the position objective of the virtual sound source, said intersection then defining a potential virtual sound source;
• if at least one potential virtual sound source exists, the position of the virtual sound source is defined as the potential virtual sound source minimising a distance to the position objective of the virtual sound source.