Audio adapter for use with an electronic still camera

摘要: An electronic still camera device has a unit that is capable of recording and reproducing video audio signals, an adapter which can be detachably attached to the operation switches, microphone, collected sound amount indicator circuit compressing expanding signals. In order reduce number signal lines are provided between adapter, automatically set in playback mode when detected compressed signals being delivered from adapter. The power supply arranged superpose D.C. voltage high level or low signal. A switch selectively supplying source accordance with voltage. enable user conduct collection, cancelling at any desired timing, switches generating collection starting instruction, stopping instruction executed these instructions. for indicating terms time.