Patent ID: 9648437
Date: 2017-05-09
CPC Classifications: H04R,H04S

Claim:
1. A method comprising: capturing, by a microphone positioned at a suboptimal location that is outside of a patron-seating area in a theatre, a signature response of a loudspeaker in the theatre to a test signal, the signature response representing a desired response, at the suboptimal location, of the loudspeaker, the suboptimal location being a location other than an optimal location for a tuning microphone that is usable to determine an optimal response of the loudspeaker to a tuning test signal; storing the signature response of the loudspeaker; correlating the signature response to the optimal response, the signature response indicating what the optimal response should be at the suboptimal location of the microphone for the loudspeaker; capturing, by the microphone positioned at the suboptimal location, a subsequent response of the loudspeaker to the test signal, the subsequent response representing a changed response, at the suboptimal location and at a time that is subsequent to capturing the signature response, of the loudspeaker; determining a difference between the signature response and the subsequent response, the difference representing changes in loudspeaker response since capturing the signature response; and compensating for the changes by modifying an audio signal based on the difference to generate a compensated audio signal and outputting the compensated audio signal by the loudspeaker such that a response to the compensated audio signal represents, in the patron-seating area of the theatre, the desired response by the loudspeaker.