The process implements a global regulation at the level of a horizontal band of the image, band consisting of panels, an encoder being assigned to each panel, as a function of a preset bit rate for the band and on the basis of a single Video Buffering Verifier taking into account the state of the buffer memories of the encoders of the band. It is characterized in that both boxes connect by means of a single part that constitutes a center rib with a double T-shaped profile. Each published awareness state is based on a collaborative relationship between the user and the participant to which that awareness state is published. The input stage inhibits the input signal from being presented at the source of the input stage when the inhibiting signal is at a predetermined level.