To provide a moving picture transmission apparatus that can reduce a speech time by allowing a recipient to be aware of speech time when a prescribed speech time elapses.

A CPU 5 references a speech time from a timer circuit 6 and uses a coding control timing signal 7 to deteriorate the image quality of image data coded by a coding circuit 2 when a prescribed speech time elapses. Thus, the system allows the recipient to be aware of the lapse of the speech time so as to indirectly suggest the intention of interrupting the speech to the recipient.