| 摘要 |
PURPOSE:To realize variegated sound effects with a simple constitution by respectively multiplying plural digital sound signals by digital sound volume factors of a left and right channels which use specific bits as phase information. CONSTITUTION:Desired data of various sound source data of a RAM 11 are transferred to an external RAM 14 through a signal processing section 11 under the control of a CPU 13 and part of the data are reproduced to original sound source data at the section 11 and supplied to loudspeakers 3L and 3R respectively through D/A converters 2L and 2R. Multipliers are respectively provided to the left and right channels and digital sound signals are commonly supplied to the multipliers and, at the same time, digital sound volume factors of the left and right channels are respectively supplied to the multipliers by using specific bits as phase information. Therefore, each sound source signal can be made to stereophonic signals and variegated sound effects can be realized. |
