Analog Sound Synthesis on Your Computer

Step 9 Exponential ramp applied to a sine wave

This page shows how to use the exponential ramp from the previous step to modulate a sine source (actually, sine and cosine). The behavioral voltage source is used to turn a linear ramp into an exponential ramp that drives the FM input on a modulate2 component.

The amplitude is modulated by both a fast exponential ramp and a slow sine wave.

Listen to the sample file- it sounds pretty weird.