Leistner, P.P.LeistnerKrueger, J.J.Krueger2022-03-082022-03-081999https://publica.fraunhofer.de/handle/publica/304171NOVELTY - The adaptive acoustic monitor has a loudspeaker (1) with a soundproof housing (2) converting an electrical input signal (10) into radiated sound, with the signals provided by a microphone (3) directly infront of the loudspeaker and a microphone (4) behind the latter processed before being superimposed on the input signal (10) USE - The acoustic monitor is used for compensating room resonance in a small room. ADVANTAGE - The adaptive acoustic monitor provides improved reproduction characteristics for music and speech in a small room.de608624690patent1997-19746645