| 摘要 |
PURPOSE:To practice a melody performance joyfully with an interest. CONSTITUTION:A CPU 102 generates LED turn-ON/OFF data indicating keying with melody data from an automatic accompaniment data memory 110 and outputs the data to a melody guide 111 to generate sound source data on a musical sound generated by user's keying on a keyboard 101, decides how much the musical sound match the pitch indicated by the keying and the keying timing according to the current level of the user, and sets the output flag of sound source data to '0', '1', '2', or '3' and also sets '4' for the musical sound of an automatic accompaniment, thereby outputting them to a sound source 103. The sound source 103 reads musical waveform data out of a waveform memory 104 and generate musical sound data, and outputs them to one of DSPs 105 #1-#5 according to the values of the output flags. The DSPs #1-#5 give different effect to output musical sound data of five systems, which are mixed by a mixer circuit 106, whose output is passed through a D/A converter 107 and an amplifier 108, so that a speaker 109 outputs a sound. |
