These will show up on the tape and make it more difficult for individual to hear. If there are questions from the audience, speakers should repeat them so that they are clear on the tape. Typically, questions from the audience will be inaudible or indistinct on a tape, even though the speaker can hear them clearly. Video quality on the web is still mediocre. Here are some guidelines that may be helpful.
Camera shots that zoom in on the speaker's head and shoulders are best.
If the camera pans out and shows the speaker's entire body, it is unlikely that viewers can make out much facial detail at all. Choose a plain, contrasting background against which the speaker stands out clearly. Backgrounds with a lot of detail or movement do not translate well into streaming video. For example, if a speaker is outside with a background of rustling leaves on a tree, the complexity and movement of the background will seriously degrade the quality of the image of the speaker's face. In contrast, if the speaker is shown again a plain white background with no movement, the video quality of the speaker's face will be much greater.