Abstract: A method and a device for transmitting at least a portion of a signal during a video conference session is disclosed. In one aspect, a method of transmitting at least a portion of a signal acquired by a first terminal to one second terminal during a video conference session, the signal comprising an audio stream and a video stream conveying images acquired with the help of one video image sensor is disclosed. The method comprises obtaining a parameter representative of a quality of the acquisition performed by the sensor of the video images conveyed by the video stream of the signal, and a process of notifying the first terminal of information representative of the acquisition quality. If this parameter is representative of an acquisition quality that is higher than a predetermined level, both the audio stream and the video stream of the signal are transmitted to the second terminal.