| 摘要 |
PROBLEM TO BE SOLVED: To cancel a sound to be canceled at an arbitrary cancel level even if it is not a center localization position. SOLUTION: In an L(left) side filter 31 and an R(right) side filter 32, the prescribed band such as a band for a vocal sound is extracted, and is used for subtraction in an L channel subtraction means 37 and an R channel subtraction means 38, thereby only sound component required to cancel is canceled out of sounds in a center fixed position. The output of each filter means is coefficient-operated by an L side multiplication means 34 and an R side multiplication means 35, then cancel level adjustment of a sound to be canceled is realized by setting variably the operation-coefficient by operation of a cancel level operating means. Also, the fixed position to be canceled can be adjusted by adjusting the ratio of respective coefficients. |
