AVIXA Recognized AV Technologist Test 2025 – All-in-One Study Guide for Exam Success

The correct choice is indeed the limiter, as its primary function is to restrict the audio signal level to a certain threshold to prevent distortion and clipping. When the input level exceeds this set threshold, a limiter acts by ensuring that the output does not exceed maximum levels, effectively passing very little or no additional level above that threshold. This makes it an essential tool in audio processing, especially in live sound and recording scenarios where maintaining sound quality is critical.

Limiters work by applying a specified amount of gain reduction to any signal that goes above the threshold. This gain reduction is typically quite rapid, allowing the limiter to cap peaks without introducing significant distortion or changes to the overall tonality of the audio signal. This is particularly useful for protecting speakers and keeping the overall mix balanced without allowing any single element to overpower the others.

While high pass filters, low pass filters, and expanders all play important roles in audio processing, they serve different purposes. High pass and low pass filters modify the frequency content of a signal rather than directly restricting signal levels. An expander, on the other hand, reduces the level of signals that fall below a particular threshold, which is the opposite function of a limiter. Thus, the limiter is uniquely designed to control and limit output levels above