2.4 Sources

The sources panel allows to control the positions, moves, levels, reverbs and spatialization options for each of the 16 available virtual sources..

Source mixer

Source mixer
Select	Displays the controls for the selected source The source track is highlighted
Name	The name of the virtual source can be defined The name will be displayed on the graphical area, in the Reverb panel and in the global display panel
Input	Select the audio input of the sound card for the virtual source
Mute	Cut the signal of the sound source This also cuts the processing of the source, consider muting all unused source to lower the CPU load
Solo	Cut the signal of all sources for which the solo button is not enabled A clear solo button is available to deactivate all solo buttons of all sources
Fader	Gain control of the incoming signal

Position control

Position control
Color	Change the color of the source The color will be applied to all representation of the source and its trajectory on the graphical area, on the associated faders in the source mixer and reverb mixer
Free move	Moves the source freely in the graphical area The source can be placed with the mouse If the source is controlled by an external software (OSC automation…), this option must be checked
Trajectory	Edit a trajectory for the source
Width	Control for the perceived width of the source
Presets bar	When approaching the mouse to the upper side of the graphical area, the preset bar is displayed
Load	Loads a preset file for the selected source
Export	Export all the presets of the source un a .json file
Save	Save the current state of the source in the current preset
New	Save the current state of the source in a new preset
Rename	Rename the selected preset
Copy	Copy the parameters of the selected source in the clipboard The parameters can only be pasted for another source
Paste	Loads the parameters of the clipboard in the current source editor

Trajectory management

To create a trajectory, just click in the graphical area to create a point.

Shift + click = delete the point the points can be moved with the mouse

Trajectory management
Clear	Reset the trajectory
Play	Trigger the movement
Loop	Plays the movement repeatedly
Movement direction	Choose the movement direction or a round trip movement
Duration	Total duration of the movement
Position on trajectory	Set the position on the trajectory Example : a value of 2.5 will place the source at the middle of the segment between points 2 and 3 of the trajectory

Quick tip: by placing the trajectory points at adequate positions of the virtual stage, it allows to place the source with only one parameter.

0 = in the front on the left 1 = centered in the front 2 = in front on the right 3 = in the middle on the right 4 = in the rear on the right 5 = in the rear centered 6 = in the rear on the left 7 = in the middle on the left 8 = centered in the middle

Creating motion

You can use the trajectory tool to control both position and speed of the source. The same amount of time is taken by the source to from one point to the next one. Close points will decrease the source speed, far points will accelerate the movement. The total duration is set in the « duration » numbox.

Output mixer

The output mixer sends the signal to the 4 groups of speakers and to the reverb engine. The spatialization of the sources is also controlled here.

Output mixer
Mute	Cut the sound of the source on the bus This cuts also the processing; you can consider muting unused busses to lower the CPU load
Fader	Controls the send gain to the busses
Playback mode	Allows to spatialize the source on a given speaker group (« spatialized ») or to directly route the signal to each speaker of the group (« direct routing »)
Constant gain	Allows to spatialize the sound source with a constant intensity, whatever the distance to the speaker group If deactivated, the more distance between the source and the speakers, the lower will be the signal

Nota : the gain computation of the source is by default independent for each group of speakers. It depends on the number of speakers in the group and the distance from the source to each speaker of the group. The groups are limited to 8 speakers, but you can link several groups to spatialize the source on bigger speaker arrays.

In this case :
• The gain computation of the source is by default independent for each group of speakers
• It depends on the number of speakers in the group and the distance from the source to each speaker of the group
• The groups are limited to 8 speakers, but you can link several groups to spatialize the source on bigger speaker arrays

Gains and delay monitoring : visualization of the spatialization settings.

Delays activation : the delays can be activated or not. For static sources, it is recommended to activate the delay to strengthen the spatialization effect. For sources which are subject to move, the delays will be interpolated, which can create a doppler effect. This effect can be attenuated by increasing the time constant of the smoothing in the settings panel, or the delay can be deactivated.

Direct routing : the signal of the source is directly routed to the selected speakers of the group thanks to the matrix.