Patent ID: 6980663

Claim:
A process for the compensation of losses in an acoustic signal in a room comprising multiple positions (P 1 , P 2 , P 3 , P 4 ), wherein each position comprises at least one sending point ( 6 ) and at least one receiving point ( 4 ), and wherein the losses occur between a sending point ( 6 ) of a first position and a receiving point ( 4 ) of a second position, the process comprising: transmitting an acoustic signal (S) from the sending point ( 6 ) of the first position to the receiving point( 4 ) of the second position via an electrical path, providing a first electro-acoustic means (M 1 , M 2 , M 3 , M 4 ) for receiving the acoustic signal (S) in the vicinity of the sending point ( 6 ) of the first position, providing a second electro-acoustic means (L 1 , L 2 , L 3 , L 4 ) for reproducing the acoustic signal (S) in the vicinity of the receiving point ( 4 ) of the second position, determining a parameter of the acoustic path between the sending point ( 6 ) of the first position and the receiving point( 4 ) of the second position that is capable of being used to compensate losses due to echoes, feedback or ambient noise, and generating a compensating acoustic signal via the second electro-acoustic means (L 1 , L 2 , L 3 , L 4 ) using the parameter, whereby the losses in the acoustic signal are compensated wherein the values of the parameter or of each parameter for at least one given transmission path is stored and used to control the signal level, and wherein the values of the parameter or of each parameter is stored in the form of an attenuation matrix.