| 摘要 |
<p>PURPOSE:To confirm the correction of keying with voices by a key operator. CONSTITUTION:A coded signal 10 outputted by keying the key of a key input part 1 is fetched into a register 2 by a keying signal 11 and used as the high- order 8-bit address of a memory 5. The keying signal 11 clears a counter 3 to zero. After the counter 3 is cleared to zero, counting-up is started in the cycle of 2kHz. The output of the counter 3 is used as the low-order 10 bit address of the memory 5. The memory 5 stores 256 voice data corresponding to the kinds of keys. According to the output data of the register 2, one of 256 voice data areas is selected and according to the output of the counter 3, data in a one-kilo word area are successively read out. These data are successively converted to analog signals by a D/A converter 6, and the voices are outputted from a loudspeaker 7.</p> |
