METHOD AND DEVICE FOR RECORDING AND PROCESSING AUDIO SIGNALS IN AN ENVIRONMENT FILLED WITH ACOUSTIC NOISE

摘要

The aim of the invention is to receive and treat audiosignals with a good usersignal to fault signal ratio in noise conditions and with a good ratio betweenthe direct and the reflected echo in surroundings which are especially notfree from reverberation. Electrical signals are produced by convertingrecorded audiosignals. Said electrical signals are treated by a givenmicrophone assembly in such a way that electrical signals having differentstrengths (different sensitivities of the microphones) and being produced bythe microphones are compensated automatically, i.e. without manual andindividual compensation procedures which have to be carried out separately,when the sound pressure levels of the microphones pertaining to the microphoneassembly are equal. According to the invention, the properties of an array ofmicrophones are combined to the properties of a method for compensating thesensitivity of microphones.