| 摘要 |
<p>PURPOSE:To make a generating speed slow and to confirm the display content such as result of operation by means of the music scale, by providing a key to control the generating speed of the music scale and changing the generating speed of the music scale according to the purpose. CONSTITUTION:An operation is made at an operation processing device 2 with the operation of an operation key 3, the result of operation is obtained and the result of operation is given to a voice signal controller 13. The controller 13 is in the state of production of voice signal since the input from an FF16 is at high level, and the control signal corresponding to the result of operation of digits corresponding to a signal in 3-bit from a binary counter 12 is given to an audio signal generator 14, which supplies music scales according to the signal to a sound body 15 to produce a music scale. When a control key 4 is depressed, an FF5 is set and a signal from the final stage of the binary counter 6 is applied to the counter 12. A signal in 1/2 of normal frequency is supplied to the counter 12.</p> |
