| 摘要 |
PURPOSE:To provide a spread to sound by providing right/left sound volume adjusting means to each channel so as to control the right/left sound volume based on the right/left sound volume adjusting data stored in advance thereby sharing the right/left channel sound simply. CONSTITUTION:Waveform data of waveform registers of register array sections 11-16 is expanded into a pattern by waveform generators 61-66 and the output sound is subject to D/A conversion by attenuators 71-76 in each channel. Then the sound is adjusted to a prescribed level and attenuated by right/left attenuators 10a1, 10b1, 10a2 and 10b2-10a6 and 10b6 of each channel by the attenuation depending on the data of the right/left sound volume registers. Thus, the right/left output sound of each channel shared to the right/left are mixed respectively and the sound volume is adjusted by main attenuators 11a, 11b, then the spread is given to the sound. |
