The Aphex 320D Compellor is a limiter. The proprietary technologies within the 320D are completely unique. Going beyond conventional design concepts, the 320D provides audio processing with unprecedented sonic transparency while remaining extremely effective at controlling levels. No other product can match the performance of the 320D. Algorithms such as our "FDL," "DVG," and "DRC" still have no rivals.

The 320D's Frequency Discrimination Leveler section, with Dynamic Verification Gate and Silence Gate, slowly adjusts the volume level of an audio stream using highly sophisticated algorithms that conceal their operation. It works differently across different frequencies and stops processing when the sound stops, then instantly resumes when the sound returns, so there are no distracting increases in program background noise. When listening, you can tell that the levels are more even, but you don't perceive that the levels are changing.

The 320D's variable slope compressor, dynamic recovery computer, and dynamic verification gate add adaptive compression that matches the texture of changing audio sources. You don't hear pumping or other audio artifacts, only natural-sounding audio that is consistently even in loudness.

The 320D limiter acts on peaks that exceed average program levels, making them easy for any analog or digital recording system to handle.