6. The speech recognition apparatus according to claim 1, wherein said changing means controls weight for each class of the recognition information to be used in the speech recognition in accordance with the viewpoint detected by said detecting means.
7. The speech recognition apparatus according to claim 6, wherein said changing means sets a plurality of areas each of which is related to a different class of recognition information and controls the weight for each class of the recognition information in accordance with relationship between the viewpoint detected by said detecting means and each of the plurality of areas.