I don’t quite get what’s going on here, but this appears to be some sort of early Vocoder that creates Dr. Who Dalek voices—or any other crazy noises—using old skool components. There are two inputs, ...

1. In modulation a parameter of the _____ is systematically varied according to the waveform of the _____ . 4. In Ring Modulation with a sine-wave carrier C and a sine-wave modulator M, the following ...