Patent ID: 7606372

Claim:
A device for determining a reproduction position of a source of sound for audio-visual reproduction of a film scene from a plurality of individual pictures with regard to a reproduction surface having a predetermined width and a projection source having a projection reference point, the device comprising: a provider configured for providing a recording position of the source of sound, a camera position during recording, and an aperture angle of the camera during recording; a transformer configured for transforming the recording position of the source of sound to a camera coordinate system, the origin of which is defined, in relation to a camera aperture, to obtain a recording position of the source of sound in the camera coordinate system; a calculator configured for calculating the reproduction position of the source of sound in relation to the projection reference point, the calculator being configured to use the projection reference point and the camera aperture as a common starting point, and the calculator being configured, in the case of an aperture angle of the camera which equals a predetermined aperture angle, to calculate the reproduction position on the basis of an intersection point between a straight line extending through the recording position of the source of sound in the camera coordinate system and through the common starting point and the reproduction surface, or if no such intersection point exists, to calculate the reproduction position on the basis of an intersection point of the straight line with a projection sphere, the central point of which is the common starting point, and the radius of which depends on the width of the reproduction surface and the predetermined aperture angle, or in the case of an aperture angle of the camera which deviates from the predetermined aperture angle, to calculate the reproduction position on the basis of an intersection point between a straight line extending through the recording position and the source of sound in the camera coordinate system and a reference point, spaced away from the common starting point by a distance, and the reproduction surface, and on the basis of a shift by a difference in relation to the reproduction surface, the distance and the difference depending on the aperture angle of the camera, or if no such intersection point exists, to calculate the reproduction position on the basis of an intersection point of the straight line with a projection sphere, the central point of which equals the common starting point, and on the basis of a shift by the difference.