I designed this device in 1986 and, unfortunately, it is the only device from the group that I have designed by myself that I do not have, since it was destroyed in 1988, but I could design it again if necessary. It is an extremely effective device applicable in movie and theatre special effects, discotheques, and rock concerts, generally, where music is present. Its purpose is to synchronize the light effects with the music.
Simply, it is a device with the help of which music can be seen.
What makes it different from the common light-show is that it has a built-in algorithm which enables the microprocessor to extrude only the frequencies important for the musical experience from the spectral analysis, and feed them to the appropriate light source. The device provides such a synchronization of light and sound that the experience lifts up to a higher level because the music is given another dimension (the one of light).
The core of the device is not in the fast spectral analysis, but in the algorithm of the computer which enables the machine to follow music according to human emotions. Naturally, human emotions are too complex and different to have a universal rule for the algorithm to work by, but the algorithm uses the rules approximately the same for all people.
Its efficiency is especially shown in rock music, the "emotional rules" of which are very simple.
Now I would be able to advance the project for use in classical music.