| 摘要 |
PURPOSE:To utilize a nondirectional microphone effectively and to improve the sense of presence by amplifying an output of the nondirectional microphone with an amplifier even when a narration switch is turned off. CONSTITUTION:In the case of collecting voice of a photographer, a narration switch 7 is turned on to amplify an output of a nondirectional microphone 4 by an amplifier 9, and its gain is set to a prescribed value applied to collect the voice of the photographer. On the other hand, in the case of not collecting the voice of the photographer, the narration switch 7 is turned off and the output of the nondirectional microphone 4 is amplified by an amplifier 8 and its gain is regulated by a control circuit 10. Thus, the nondirectional microphone is utilized effectively and proper sense of presence corresponding to the zooming and the focus of a zoom lens are obtnd. |
