SIGNAL CORRECTION PROGRAM, SIGNAL CORRECTION DEVICE AND SIGNAL CORRECTION METHOD

摘要

PROBLEM TO BE SOLVED: To correct sounds most suitably without installing a microphone near the ear of a listener while listening.

SOLUTION: A signal correction device 100 calculates in a preparatory stage a correction formula indicating the relationship between a sound signal collected by a microphone 10 and a sound signal collected by a microphone 20 on the basis of the sound signal collected by the microphone 10 and the sound signal collected by the microphone 20. The signal correction device 100 converts in an operation stage the sound signal collected from the microphone 10 into the sound signal collected from the microphone 20 by using the correction formula calculated in the preparatory stage. Then the signal correction device 100 finds a filter coefficient on the basis of the converted sound signal. The signal correction device 100 applies the filter coefficient to the signal output from a sound source to correct the sound signal output from a speaker 30.

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