| 摘要 |
A microphone sensitivity difference correction device includes a detection section (16) that detects a frequency domain signal expressing a stationary noise, based on frequency domain signals of input sound signals respectively input from plural microphones; a first correction section (18) that employs the stationary noise to compute a first correction coefficient for correcting the sensitivity difference between the plural microphones by a frame unit; and a second correction section (20) that employs the frequency domain signals that have been corrected by the first correction section to compute a second correction coefficient for correcting by frequency unit the sensitivity difference between the plural microphones for each of the frames. |
