| 摘要 |
A document camera includes: a camera unit which acquires a video signal; a microphone unit which acquires an audio signal; a stamp adding unit which adds a time stamp for synchronizing the video signal and the audio signal with each other to the video signal and the audio signal that are acquired; a mode switching button which switches between a“video recording mode”and a“sound reinforcement mode”; a video recording unit which records the video signal and the audio signal together with the time stamp if the“video recording mode”is switched on; and a sound reinforcement instruction unit which instructs a projector to output the video signal and the audio signal, ignoring the time stamp, if the“sound reinforcement mode”is switched on. |
