Noise reduction system and method for actively compensating background noises

A noise reduction system for actively compensating background noises in a passenger transport area of a vehicle, said system comprising:

• a control unit;
• at least one microphone for detecting a background noise;
• at least one sound generator for generating antinoise;
• and
• a position detection unit for detecting a position and/or orientation of a head of a user in the passenger transport area;
• wherein the control unit is coupled to the at least one microphone on an input side and is configured to receive a background noise signal,
• wherein the control unit is coupled to the position detection unit on the input side, and is configured to receive position data and to determine a position signal from the position data, the position signal indicating the position and/or orientation of the head of the user relative to the position detection unit,
• wherein the control unit is configured to generate an antinoise signal from the background noise signal and the position signal,
• wherein the control unit is coupled to the at least one sound generator on an output side and is configured to provide the antinoise signal,
• wherein the at least one sound generator is configured to generate antinoise from the antinoise signal such that, by superimposing the antinoise in one or more quiet zones within the passenger transport area, which antinoise is in phase opposition with the background noise, active reduction of the background noise is achieved in the one or more quiet zones,
• wherein the position detection unit is a 3D camera arrangement,
• wherein the 3D camera arrangement is housed in a spatially enclosed structural unit that is mountable on a headrest in the passenger transport area of the vehicle, and
• wherein, when the spatially enclosed structural unit is mounted on the headrest, the 3D camera arrangement is arranged in a portion of the spatially enclosed structural unit that projects beyond a side of the headrest or beyond a top of the headrest.