Snapshots are an important part of a live show. It can be used to capture an audio scene into SPAT Revolution. Sources, rooms and masters properties will be stored in a snapshot. It allows a complete transformation of the soundscape, with interpolation.
!> To use snapshots, timecode needs to run in SPAT Revolution.
Two ways to run the Timecode:
The timecode activity is apparent in the bottom left of the screen. If timecode isn’t running, the recall will fail.
Snapshots could be controlled of the dedicated menu, and with OSC messages.
We can create a snapshot:
by using the “Create” action into the “Snapshots” menu.
In this case, the snapshot will be added at the end of the list.
Alt + Space could also be used to capture a snapshot.
by using the “Insert Before” action. This option is available only if another snapshot exists. The snapshot will be insert before the selected snapshot, and all the snapshots will be re-number.
by using the “Insert After” action. This option is available only if another snapshot exists. The snapshot will be insert after the selected snapshot, and all the snapshots will be re-number.
Recalling a snapshot will interpolate all the current properties with the stored values of the snapshot. Different options could alter the snapshot running:
This option is available in the menu “Snapshots/Options recall”. The values are range between 0 and 3600 seconds.
As all the properties are stored into snapshots, this options give us the possibility to enable or disable the recall of some properties. The recall of each section could be separately activated.
!> Be careful with the Room properties recall: changing some properties like Reverberation Density or Size causes reverb reconstruction (and audio drops).
Different actions could be executed with snapshots:
updating a snapshot
renaming a snapshot
removing a snapshot
remove all snapshots
Different actions are available for handling snapshot with OSC messages:
The snapshot name could be added in argument.
/snapshot/recall [index, *time, *Recall Effective Selection, *Recall Actual Selection]
Index: the snapshot index to recall. It can be replaced by the snapshot name.
Time: optional, it will define the recall time. If not given, the default value is 0s.
Recall Effective Selection: optional, if the value is
True, the sources’ selection on the snapshot creation will be recalled. It’s the default value. If
False, selection will not be recalled.
Recall Actual Selection: optional, if the value is
True, only the parameters of selected sources’ will be recalled. Else, all the sources will recalled (default behavior).
Index: the snapshot index to update. It can be replaced by the snapshot name.
This will return the list of the snapshot, index and name.
This will return the total number of snapshots.
/snapshot/rename [index, name]
Index: the snapshot index to rename. Name: the new name of the snapshot.
Index: the snapshot index to remove. It can be replaced by the snapshot name.
!> Be careful using it: there isn’t any confirmation.
State: 0 will disable the recall of related objects, 1 will enable it.
/snapshot/options/recall [State] [State] [State] takes the three options (sources, rooms and masters)