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Introduction 7
Live and Blind
Live and Blind are methods to view and edit data in your show files. When you press the
[Live] key, the screen will show you the live display. When you press [Blind], you will see
the blind display. In either case, you may use the [Format] key to alter how the data is
displayed (see Using [Format], page 39).
When in Live, the data displayed represents the data being sent from the console at that
moment. In other words, the parameter data that is “live” on stage. When you edit data in
live, those changes will become active and visible on stage as soon as the command line
is terminated.
When in Blind, the data displayed represents data from the record target you choose to
view (cues, presets, palettes, and so on). When you edit data in Blind, changes will not
automatically appear on stage, since the data you are modifying is not live. This is true even
if the record target you are modifying is active on stage. It is possible to play a cue in Live,
then switch to Blind and edit that cue in blind without affecting levels on stage. Edits in Blind
do not require a [Record] command to be stored. They are considered stored when the
command line is terminated. Any display that is not the Live display is considered Blind, and
the Blind LED will be illuminated. For example, if you open patch, the blue LED on [Blind]
will be lit to show that you are in a Blind display.
HTP vs. LTP
HTP (Highest-Takes-Precedence) and LTP (Latest-Takes-Precedence) are terms used to
define the output of a channel parameter that is receiving data from multiple sources. In
HTP, the highest level of all sources will be executed. In LTP, the most recent level received
will be executed. Cue lists and submasters can operate as HTP or LTP for intensity
parameters only. Non-intensity parameters (NPs) are always LTP. Submasters can operate
as HTP or LTP for intensity. The default is HTP. Ion’s default cue list setting for intensity is
LTP (see HTP/LTP, page 209). Ion’s default submaster setting for intensity is HTP.
HTP
HTP is only applicable to the intensity of a channel. HTP channels will output the level that
is the highest of all inputs. HTP channels are also referred to as “pile-on”, because as
control inputs are added (for example - you may bring up cues and multiple submasters that
all have the same channel recorded at various levels), the system calculates which input
has the highest level for that channel and outputs that level for the channel. As control
inputs are removed (you pull some of the submasters down to zero), the console will adjust
the channel level, if required, to the highest remaining level.
LTP
LTP is applicable to any parameter of any channel. LTP output is based on the most recent
move instruction issued to the channel parameter. Any new values sent to the channel will
supersede any previous values, regardless of the level supplied.
Ion determines the LTP value for a channel, which is overridden by any HTP input values
that are higher than the LTP instruction. This is then finally modified by manual control.