| 摘要 |
PURPOSE:To obtain the titled device where the missing of information after the restoration of musical interval is less and noise at a connecting point is reduced by providing the 2nd read number generating circuit, the 2nd holding circuit, the 1st and 2nd multiplier circuits, an adder circuit and an amplitude control circuit. CONSTITUTION:The output signals of the 1st and 2nd multiplication circuits 6, 7 become an analog output respectively via the 1st and 2nd integration circuits 16, 17, and the outputs of the 1st and 2nd integration circuits 16, 17 are outputted to an adder circuit 8. 1-Bit DA conversion circuits 26, 27 convert a digital signal from a digital memory into an analog signal. The amplitude control is applied by using an amplitude control circuit 9 so as to change the multiplication coefficient of the 1st and 2nd multiplication circuits 6, 7 to 0-1 in response to the output of the 1st and 2nd holding circuits 4, 5.
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