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Two figures show floorplan of the same apartment. A red dot is in the bottom right corner of apartment. The figure on the right includes furniture and room details; the left figure shows how loud the sound emitter is in every room. Close to the red dot the area is yellow, and further away it is blue.
MIT news article

MIT researchers have developed a machine-learning technique that accurately captures and models the underlying acoustics of a scene from only a limited number of sound recordings. In this image, a sound emitter is marked by a red dot. The colors show the sound volume if a listener were to stand at different locations — yellow is louder and blue is quieter.