Amplifier-Limiter

An amplifier-limiter, also known as a limiter-amplifier or simply a limiter, is a device used in audio processing to control the dynamic range of a signal. It is commonly used in audio production, broadcasting, and live sound reinforcement.

The primary function of an amplifier-limiter is to limit the maximum level of a signal, preventing it from exceeding a certain threshold. This is useful in situations where the signal may become too loud and cause distortion or damage to speakers or other audio equipment.

In addition to limiting the maximum level, an amplifier-limiter can also amplify the signal to make it louder. This is particularly useful in situations where the signal needs to be boosted to match the desired level or to compensate for any loss in signal strength.

Amplifier-limiters typically have adjustable parameters such as threshold, attack time, release time, and ratio. The threshold determines the level at which the limiter starts to take effect, while the attack and release times control how quickly the limiter responds to changes in the signal level. The ratio determines the amount of gain reduction applied to the signal once it exceeds the threshold.

Overall, an amplifier-limiter is a versatile tool that allows for precise control over the dynamic range of a signal, ensuring that it remains within a desired range and preventing any unwanted distortion or damage.