| 摘要 |
PROBLEM TO BE SOLVED: To provide a 'KARAOKE' (orchestration without lyrics) device independently adding a harmonic sound to sound signals inputted from plural microphones at the optional timing. SOLUTION: A sequencer 30 reproduces control information together with the performance data for automatic performance of a composition. This control information contains input control information specifying a pitch shifter used for generating the harmonic sound from respective sound signals obtained from the microphones M1, M2. An input signal patch bay 101 allocates respectively and independently respective dry sound signals D1, D2 obtained by the microphones M1, M2 to respective pitch shifters according to the input control information. An output patch bay 102 uses respective dry signals or the output signals of respective pitch shifters, and further, uses an effect circuit group 120 if necessary, and synthesizes the sound signals to output it. |
