| 摘要 |
PROBLEM TO BE SOLVED: To automatically reproduce voice of sutra or the like without operating a switch or the like when a series of works have ended. SOLUTION: A microphone 1 inputs a signal concerning sound generated outside. A band-pass filter signal extraction circuit 3 and an extracted signal continuous receiving/detecting circuit 4 detect that the sound signal inputted by the microphone 1 is specific sound, namely, the sound generated at the time of striking a bell 22, and outputs the detection signal DT to a control circuit 8. The control circuit 8 sequentially reads voice data concerning the sutra pre- stored in a voice data memory 5 according to the input of the detection signal, and automatically utters them from a loudspeaker. |
