Production of modulation signals from audio frequency sources to control color contributions to visual displays

摘要: Disclosed are apparatus and method for modulating color contributions in visual displays with audio signals. Particular embodiments disclosed separate input frequency signals into characterized by particular ranges. At least one such signal is operated on a gating circuit controlled enabling from voltage oscillator. A level detector samples the feeds control to oscillator response values of amplitude detected signal. Generation processing may be provided as part display system television receiver or eidophor system, transmitted through antenna system. Each electron gun then modulated different signal, resulting varied magnitude