Owner`s manual

7
BVE02-PV
When connected directly to a Vision Switcher, the BVE02-PV adds a number of significant
additional functions to the standard facilities described above that extend the audio control in
live TV production – especially for News and Magazine programming where single-person
video and audio operation is often preferred.
Preview Audio Control
When a vision source is selected to the Preset bus on the Vision Switcher, the corresponding
audio sources are routed to the inputs of the last 2, 4 or 8 channels of the mixer. When Audio
Preview is selected on the Vision Switcher the BVE02-PV allows the faders of these channels
to be adjusted while the audio is heard and metered through the external monitoring system.
Once the correct fader levels have been set the fader levels for that source are stored within
the BVE02-PV. When that video and audio source is selected to the Program bus, the fader
levels are recalled and applied to the faders of the channels carrying that source’s audio.
While that source is selected to the Program bus, if the audio levels require further
adjustment, reselecting that source to the Preset bus will enable the audio levels to be
adjusted from the Preview faders on the mixer while the source is To Air.
Remote Preview Control
As the layout of a production gallery will have to accommodate both multi-operator and
single-operator working, it is often not practical to make the audio mixer and Vision Switcher
easily accessible from a single operator position.
The BVE02-PV therefore allows a compact external fader unit, specifically the JLCooper
ES4/100-RS422, to be connected that can be conveniently installed beside the Vision
Switcher, within easy reach of the Vision Switcher operator. This fader unit replicates the
function of the Preview faders of the mixer, allowing a single operator to select vision sources
and control the corresponding audio channels.
Multiple Audio Sources
The standard ESAM protocol allows for only one Machine group of sources to open to the
Program bus at one time – except when a transition is in progress from one Machine source
to another.
Exclusive to systems incorporating Snell Kahuna Vision Switchers, the BVE02-PV allows
multiple vision sources to be selected to the Program bus and all the corresponding audio
channels to be simultaneously opened on the mixer.
This is especially important for News or Magazine programming where the programme
requires, for example, the automated mixing of an interview or conversation between two
remote contributors or a studio presenter and a succession of remote contributors.