| 摘要 |
PURPOSE:To set the sound image of musical sounds emitted from right and left speakers by performing the playing operation of each keyboard split at every sound area by key split at a normal position corresponding to the position of split keyboards in, for example, an electronic keyboard musical instrument. CONSTITUTION:A CPU 302 sends a sound volume control signal to set the normal position of the sound image by the musical sounds by orchestration played on the low-frequency sound side of the keyboard 101 split by a split point and melody played on the high-frequency sound side to a panning control circuit 307. The sound image by the musical sounds of the orchestration played on a low-frequency sound side keyboard and the melody played on a high-frequency sound side can be set at the prescribed position as a result that the sound volume of the musical sounds of L and R output emitted from an L output speaker 102 and an R output speaker 103 can be controlled by multiplying the sound volume control signal by the musical sound signal inputted from a sound source 306 to an amplifier 308 for L output and an amplifier 309 for R output by the panning control circuit 307. |
