Cells treated with apoptosis-inducing agents are imaged with a light microscope, typically operating in phase contrast or differential interference contrast mode, and time-lapse recording is made with a ccd camera connected to a video recorder (Collins et al. 1997; Willingham 1999).
They repeat this two to three times during the session while an audio recording is made.
The actor rehearses the line so that it matches the wording and lip movements and then a recording is made.
On some occasions several cameras shoot a scene simultaneously from different points of view while only one sound recording is made, or several sound records may be taken of a single shot.
To make this even clearer, each recording is made with a different technology, and in the version we made for BBC Radio 3 last month we used a Dictaphone, a Studer tape recorder and an Edison wax cylinder phonograph.
This is a realistic assumption, especially, when audio recording is made in a relatively quiet environment and/or it is pre-processed for speech enhancement.
