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When the audio signal exceeds the threshold level, the soft-knee limiter temporarily allows the threshold to be exceeded, and gradually changes the audio signal back to the threshold level over the specified attack time. When the audio signal drops below the threshold level, the signal attenuation is gradually stopped over the specified release time.

The soft-knee limiter keeps distortion to a minimum and produces natural-sounding results. However, there is no effect unless an appropriate threshold and attack time are set with some margin. If the threshold is too high, or if the attack time is too long, the soft-knee limiter operates in the same way as the Hard-knee limiter when the signal reaches 0 dB.

With the hard-knee limiter, audio signals are cut off at the threshold value. This is useful when the signal only exceeds the threshold for short periods of time, but significant distortion could occur if the threshold is frequently exceeded.

The advanced limiter is the most transparent of the three limiters while allowing more control over the output. This is because the signal does not exceed the threshold. It achieves this by introducing a small latency of 2.67 ms. This allows the limiter to automatically configure the attack and react to peaks smoothly, before the input reaches the threshold. The threshold, release stage, and an output gain can be configured in this mode.

	Caution
	The advanced limiter mode is not supported when mixing with Audio Objects. For performance reasons, the advanced limiter mode is replaced by the soft limiter mode when mixing with Audio Objects.