| 摘要 |
PURPOSE: To provide an acoustic reproduction device in which the tempo and the interval of an accompaniment are compensated in accordance with the interval of a singer even when there exists a tempo difference, which is within an allowable range, between the voice of the singer and the accompaniment. CONSTITUTION: The device consists of a first interval extracting means 3 which extracts the interval of a first inputted voice, a second interval extracting means 6 which extracts the interval of a second inputted voice, storage means 4 and 7 which store the time histories of each interval, a computing means 8 which computes the differences in tempo and interval between the first and the second inputted voices employing the time histories of the intervals and a nonlinear pattern matching method, compensating means 9 and 10 which compensate the tempo and the interval of the second inputted voice so that they are made approximately equal to the tempo and the interval of the first inputted voice and a means 13 which reproduces the compensated second inputted voice that is compensated by the means 9 and 10 or a third inputted voice that is compensated for its tempo and interval differences. |
