Isadora Manual v1.3 - TroikaTronix

The play start and play length parameters specify what portion of the movie will
play. See Movie Player actor for a detailed explanation of these inputs.
This actor is useful for multi-channel sound installations or performances that
require interactive control over multiple tracks of sound.
Input Properties
• movie: The number of the movie you want to play, as shown in the Media
Window. When the number of a valid movie is entered here, its name will
appear to the right of the number. Note that it is possible to choose a movie
that also contains video, but you will not be able to access the video from this
movie.
• on/off: When turned on the movie plays and the resulting video stream is sent
out of the video out output. When turned off, the movie stops playing and is
unloaded from memory.
• speed: The speed of the movie, from –10 to 10 times normal speed. The
default setting is 1.0, which plays the movie forward at normal speed. 0.5
would play the movie forward at half speed. A setting of 2.0 plays the movie
forward at twice normal speed. Negative values play the movie in reverse.
• position: Whenever a value arrives at this input, the Sound Player jumps to
the specified position within the play segment. (The play segment is defined
by the play start and play length properties – see below.) This parameter is
expressed as a percentage of the play length, from 0 to 100.
• play start: Determines the starting point of the play segment (the portion of
the movie that will play) as a percentage of the movie’s total length, ranging
from 0 to 100.
• play length: Determines the length of the play segment (the portion of the
movie that will play) as a percentage of the movie’s total length, ranging from
0 to 100.
• loop enable: If this property is turned off, the play segment will play once
each time the Sound Movie Player’s Scene is activated, or when its on/off
property is turned on. If this property is on, once the movie starts playing it
will continue by looping back to the start of the play segment when the end of
that segment is reached.
• preload: When this input is triggered, the movie’s sound data is “prerolled”
so that you can achieve an instantaneous start when turning the on/off
property on. Note that the on/off property must be off for preload to work. If
the movie is playing, triggering this input has no effect.
• freq bands: Enables/disables monitoring of the audio level of this movie’s
soundtrack at specific frequencies. If set to zero, frequency monitoring is
disabled. Setting the freq bands to a number greater than zero, will divide the
audio frequency range into the specified number of bands adding an output for
each one. These outputs will report the energy level for within that band. For
example, if the movie’s sampling rate is 48 Khz and you set this input to 5, the
Isadora Manual
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