| 摘要 |
PURPOSE:To simplify circuit constitution for detecting a start end of a sound and to solve problems on mounting a circuit and a cost related to a sound storage device digitizing the sound, storing it in a memory and reproducing it at necessary. CONSTITUTION:In the sound storage device provided with a conversion means converting an analog signal to a digital signal and a storage means storing a digital sound signal, A/D converter 4 for detecting the sound from an analog input signal and a power detection means 50 inputting the output of the A/D converter 4 are provided. The detection output of the power detection means 50 is supplied to a control means 2, and the control means 2 starts the conversion of an analog sound signal to the digital sound signal by the conversion means and the storage in the storage means. |
