'Source Position Manager' area

You can set the virtual space position of the audio source coming from the selected channel in the “Source Position Manager” area, by moving the blue sphere with the mouse. The fields X and Y indicate the positions in relation to the center of the virtual cube, in meters. The field Z, modifiable through the fader above it, indicates the height of the source. NB. For example, in an environment with a height of 6 meters, the floor will be at -3 meters, since zero is set at the center of the virtual cube.

The values of Speaker Position and of Source Position Manager vary according to the value of Room Side set in the Global Settings area; it is therefore advisable to set the latter parameter first of all. In order to fix the positions of the speakers at a predetermined position, even when the Room Side parameter varies, set the option ‘Lock Speakers’ in the A&G X-Spat menu.
The button “TheBat” allows the connection and control of the three parameters in the Source Position Manager by the three-dimensional ultrasound controller produced by A&G and denominated, in fact, TheBat. As this controller that can be connected via USB, TheBat must be switched on and connected to the Mac before you start the X-Spat Controller application, otherwise the software will fail to recognize the controller. In the guide to TheBat, contained in the A&G Collection CD-ROM, you will find further information on the use of this device.
The ‘Global Settings’ area

The parameters included in this part of the main window are independent from the number of channels selected in the ‘MIDI Channel Selection’ area because they control the global set-ups of the X-Spat system. Proceeding from top to bottom, we find the following sliders:

‘Rosetta Out Master’: regulates the global volume of the spatialized channels exiting Rosetta800/96.

‘Doppler Tracking’: sets the speed of detection of the audio sources’ movement, in order to apply the Doppler effect.

‘Room Side m.’: sets the measurement in meters of the side, which, in turn, determines the dimensions of the virtual cube inside which the three dimensional Spatialisation takes place. If you are working in surround (two-dimensional) it sets the dimension of the virtual square’s side.

‘Number of Spatializer Outs’: sets the number of channels exiting the Spatializer. This number must necessarily match exactly the number of speakers used to reproduce Spatialisation ™ or surround, otherwise the effect will not be reproduced correctly.

In this area you can also find the pop-up menu to assign the output MIDI port through which X-Spat Controller will send messages of the MIDI Control Change type. Such messages can be sent directly to X-Spat or to a MIDI sequencer that will take care of recording the data and sending them to X-Spat at the same time.

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