FIELD: physics, acoustics.
SUBSTANCE: group of inventions relates to acoustics, particularly means of monitoring sound quality in a cinema. The method comprises steps of determining the difference between the signature response of a loudspeaker to a test signal and the subsequent response of the loudspeaker to the test signal; modifying, by an equaliser unit, an audio signal based on the difference to generate a compensated audio signal; and outputting the compensated audio signal to the loudspeaker. The subsequent response of the loudspeaker follows the signature response of the loudspeaker, and the loudspeaker is located in the cinema sound system. The signature response and subsequent response are captured by a microphone in a suboptimal position in the cinema. The sound system comprises a loudspeaker mounted in the audience hall, a microphone mounted in a suboptimal position within the acoustic dispersion path, an audio device configured to generate a difference between the signature response and the subsequent response and modify the audio signal.
EFFECT: high sound quality.
20 cl, 14 dwg
