Kreichi 1997: "The glass disk used in the photo-optic generator"(figure). andZolotov 2020: "img3"(figure).
— these small figures describing how ANS Synthesizer generate the sound: (1) On the bottom: the rotating glass disk (optical tonewheel) irradiated by a light beam through a slit, generates intermittent light beam corresponding to the multiple sound wave spectrum (with 144 pitches per disk). (2) On the middle: this intermittent light beam irradiate the score glass plate from the bottom, passes through the transparent area (caused by scratch) of the score glass plate. (3) On the top: the resulting light beam is incident to the multiple photocells above the score, and these outputs as electrical signals are summed, amplified and finally played through the loudspeaker, as the sound intended on the score. On the above process, (1) the intermittent light beam as the sound spectrum, and (2) score glass plate, are corresponding to Scriabin's colour keyboard. Stanislav Kreichi (1997-11-10). "The ANS Synthesizer: Composing on a Photoelectronic Instrument". Theremin Center. Alexander Zolotov (2020-04-12). "Virtual ANS [simulator]". warmplace.ru.
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Kreichi 1997: "The glass disk used in the photo-optic generator"(figure). andZolotov 2020: "img3"(figure).
— these small figures describing how ANS Synthesizer generate the sound: (1) On the bottom: the rotating glass disk (optical tonewheel) irradiated by a light beam through a slit, generates intermittent light beam corresponding to the multiple sound wave spectrum (with 144 pitches per disk). (2) On the middle: this intermittent light beam irradiate the score glass plate from the bottom, passes through the transparent area (caused by scratch) of the score glass plate. (3) On the top: the resulting light beam is incident to the multiple photocells above the score, and these outputs as electrical signals are summed, amplified and finally played through the loudspeaker, as the sound intended on the score. On the above process, (1) the intermittent light beam as the sound spectrum, and (2) score glass plate, are corresponding to Scriabin's colour keyboard. Stanislav Kreichi (1997-11-10). "The ANS Synthesizer: Composing on a Photoelectronic Instrument". Theremin Center. Alexander Zolotov (2020-04-12). "Virtual ANS [simulator]". warmplace.ru.
