The correction of the spectrum is intended in particular has an auditorium

摘要

The electroacoustic system when it applies in particular to an auditorium (17) comprises a plurality of cells (19, 20, 21). In these cells are provided: an equalization device (26), a transmitter (24), a receiver (22), an amplification circuit (23, 25) so as to amplify the signals coming from the receiver to the transmitter and a computing unit (15) which will be, inter alia, on the equalization device (26). It is proposed to measure the response of the transmitter, auditorium observed at the level of the receiver by using, in particular, a measurement signal supplied by a noise generator (28) or any other method of measurement making it possible to obtain the response of the system in an open loop. The equalization device will œuvrer so that said response is the closest to a desired response. The application: modification of the acoustic properties of auditoria.