Final answer:
A compressor/limiter is a signal processor used in audio engineering to control the dynamic range of a sound signal by adjusting its volume based on input level.
Step-by-step explanation:
A compressor/limiter is an example of a signal processor used in audio engineering. It is commonly used to control the dynamic range of a sound signal by reducing the volume of loud sounds and boosting the volume of quiet sounds. The compressor/limiter works by automatically adjusting the gain (volume) of the audio signal based on its input level.