Sono makes sonograms in PostScript format. The resulting document is formatted as a kind of score that can be read by composers, students, musicologists and sound engineers, etc.
The figure above shows a screenshot of the computer music piece Nudes 1.1 by Lars Petter Hagen, produced at NOTAM.
How is the program useful?
A sonogram is a spectral representation of an audio signal, where time is represented along the x-axis, frequency along the y-axis, and energy is shown as a grayscale. The sonogram is an ideal notation form for electroacoustic music, where one can easily see how different sound images are positioned in time.
Sono is designed and programmed by Øyvind Hammer.