Transmitting device, the viewing environment control device, and the audio-visual environment control system

Data transmission apparatus (1) additionally with the reference data relating to the position of at least one illumination device in a virtual audio and lighting control data for one or more lighting device in the virtual audio to the video data to send to. Video receiving device (audio-visual environment control device) (4), and the audio-visual environment reference data, by using the visual environment data relating to the position of at least one illumination device in the actual viewer side visual environment space, wherein the lighting control appropriately converted into illumination control data for controlling the illumination device in the actual audio-visual environment from the data. Therefore, it is possible to perform appropriate illumination control according to the actual viewing environment.