A low pass gate (LPG) is a module that combines elements of a low-pass filter and a voltage-controlled amplifier (VCA) into a single component. It is often used in modular synthesizers to control the amplitude and timbre of a sound in a way that mimics the behavior of acoustic instruments. When a gate signal is received, the LPG allows the input signal to pass through, with the amplitude and timbre of the output sound being controlled by the characteristics of the filter and the voltage level of the input signal. This can result in a more natural and expressive sound compared to using a traditional VCA and filter separately.
Synonyms:
low-pass gate, LPG, LPGs
