Method and apparatus for the tomography of sound

A non-transitory digital storage medium having a computer program stored thereon to perform the method for the spatial tomography of sound, comprising:

• contactlessly capturing a physical parameter by means of a laser scanner for a first multitude of local regions in space over time along a first laser beam;
• contactlessly capturing the physical parameter by means of the laser scanner for a second multitude of local regions in space over time along a second laser beam;
• contactlessly capturing the physical parameter by means of the laser scanner for a third multitude of local regions in space over time along a third laser beam;
• calculating a voxel model of the sound pressure over time per local region of the first, second and third multitudes based on the captured physical parameters for the first, second and third multitudes of local regions;
• wherein contactlessly capturing is carried out in a transmissive manner with transmission of a medium at least along the first, second and third laser beams;
• wherein the sound pressure may be described along the first and second laser beams per point in time through a line integral, wherein each point on the line integral corresponds to a local region;
• wherein the first and second laser beams cross each other so that a common plane is spanned,
• wherein the laser scanner comprises a laser source emitting several laser beams in a conical manner through the space, and a plurality of laser detector elements, when said computer program is run by a computer.

An apparatus for the tomography of sound, comprising:

• a unit for contactlessly capturing a physical parameter by means of a laser scanner for a first multitude of local regions in space over time along a first laser beam;
• contactlessly capturing the physical parameter by means of the laser scanner for a second multitude of local regions in space over time along a second laser beam;
• contactlessly capturing the physical parameter by means of the laser scanner for a third multitude of local regions in space over time along a third laser beam;
• a calculation unit for calculating a voxel model of the sound pressure over time per local region of the first, second and third multitudes based on the captured physical parameters for the first, second and third multitudes of local regions;
• wherein the laser scanner comprises a laser source emitting several laser beams in a conical manner through the space, and a plurality of laser detector elements;
• wherein the sound pressure along the first and second laser beams may be described per point in time, wherein each point on the line integral corresponds to a local region;
• wherein the first and second laser beams cross each other so that a common plane is spanned;
• wherein contactlessly capturing is carried out in a transmissive manner with transmission of a medium at least along the first, second and third laser beams.