A TV -break- control room has been designed to handle both video and audio source switching and transitions. While audio usually follows the video switcher, there are frequent occasions when these functions must be temporarily separated. Program material must be underfaded during announcements. Cueing, crossfading, and outfading of tape cartridges is required. These and other special functions are either accomplished automatically or are preset in advance of the event, after which normal functions are then self-restored. Since these more complex audio operations are required during periods of high activity with video switching, it is essential that operationally simple and reliable means be provided to enable a single operator to perform these functions.
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