Digital recording of audio and / or video to be used. The microphone should be external and of very good quality. It should be placed so that the person's speech captured optimally while avoiding any other noise. The video recording should be the background to be "clean" and with good enough light.
When used in a project you should also ensure that a person operating the camera, that it is focused on the person's head and shoulders, and the picture from the front. Any pictures should be displayed from the front so that the person does not look down. However, they should not stay in the way for the face.