A microphone apparatus of the present invention is applied to a camera including a panel type view finder for displaying a picture taken by the camera, a touch panel for pointing a desired position of the picture displayed on the view finder, determining circuit for determining a direction of the real picture in accordance with the position pointed by the touch panel, a microphone device having a plurality of microphone units for collecting a sound that comes from the picture taken by the camera; and directivity generating circuit for generating a sound directivity signal with which the microphone device collects the sound coming from the direction determined by the determining circuit.