What is the function of a limiter in audio processing?

The function of a limiter in audio processing is to prevent distortion by controlling the level of audio signals. A limiter works by setting a specific threshold level; when the audio signal exceeds this threshold, the limiter reduces the amplitude of the signal to keep it within an acceptable range. This is particularly important in audio processing because excessive amplitude can cause clipping, which leads to distortion and negatively affects the sound quality.

Using a limiter ensures that recordings maintain clarity and fidelity by preventing peaks in the audio signal from becoming overly loud, which could distort the sound. It is a crucial tool in both live sound situations and in studio recording environments to manage dynamics effectively and protect speakers and equipment from damage due to excessively loud signals.

Other options do not accurately describe the role of a limiter; it does not primarily function to increase volume or mix signals, nor does it enhance audio quality directly, although it can help maintain quality by avoiding distortion.