| 摘要 |
PURPOSE:To enable to hear the dialogue part where you failed to hear by storing an input sound temporarily and by reading it at any time. CONSTITUTION:An input sound is converted 1 to an electric signal, and is supplied to a RAM4 after A/D convertion 3. A control part 8 executes circulatingly the sequential address specification up to (N-1) from the address zero for the RAM4, and writes the input sound. At the time of reproducing, the control part 8 switches the RAM4 to the reading mode and specifies the reading address based on the specification signal from a switch 9. Thus, the read signal is D/A converted 5, and becomes the sound output through a switch 7 and a converter 5. For the switch 7, a terminal (a) is switched to a terminal (b) based on the reproducing instruction, and after the reading address specification to the RAM4 takes a turn, the terminal (b) is switched to the terminal (a). |
