This instrument plays images. The image must in the PNG format.

The image is scanned. The three colours (red, green and blue) can be selected, in different combinations or one colour at the time, to be converted to sound.
The base frequency can be set and the number of voices will set the overtones.
The moogfilter can be applied to avoid aliasing when playing at higher base frequencies - or, reduce the number of voices.

example of score:
i1 0 20

* initial version 1, march 2013

* version 1.1, april 2013
- repaired initialization bug
- show width and heigth of image
- transition from raw sound (=low resolution) to clean sound (+high resolution) is fluid now
- added panning