säätöjännitteen

Säätöjännite, often translated as control voltage, is a fundamental concept in analog electronic circuits, particularly in synthesizers and control systems. It refers to a voltage signal that is used to control a parameter or behavior of another circuit. Unlike audio signals, which represent sound, säätöjännite is typically a DC or slowly varying AC signal. Its primary purpose is modulation, influencing aspects such as pitch, amplitude, filter cutoff, or LFO speed.

In the context of analog synthesizers, a säätöjännite is generated by various sources. These can include keyboards, sequencers, envelope generators, or low-frequency oscillators (LFOs). For example, a keyboard might output a voltage that increases linearly with each key pressed, thus controlling the pitch of an oscillator. An envelope generator might produce a voltage that changes over time in response to a trigger, controlling the volume or filter cutoff of an audio signal.

The standardized voltage ranges for säätöjännite are important for interoperability between different modules or instruments. Common standards include the V/octave system for pitch control, where a 1-volt increase in säätöjännite corresponds to a one-octave increase in pitch. Other common ranges exist for modulation depths and other control functions. The precise implementation and application of säätöjännite vary widely depending on the specific electronic device or system.