Phase rotation section Phase Rotation makes peak levels of asymmetrical sounds lower, to protect the compressors, limiters and clippers.
This protects the compressors, limiters and clipper against certain types of sounds that can easily distort. Examples are voices (especially female voices) and trumpets. They are very asymmetrical, with big spikes in one direction, and if there's also a bass sound present they tend to suffer from intermodulation distortion. General panel The most important Phase Rotation settings.
Enabled Enables Phase Rotation.
At start of processing Perform Phase Rotation before all other filters.
By default, Phase Rotation is performed just before the clipper. If this setting is enabled, it is moved to just before Natural Dynamics and the AGC.
At low latencies (1024 sampples and below), Phase Rotation is always done at the start of the processing chain.
Behavior panel Setting that control how Phase Rotation works.
This is difficult to set up, and requires a lot of tweaking. The red spiral display shows the effect of the settings, except for that you'll have to play a lot of difficult sounds through it and check how they look and how well the clipper handles it.
Start frequency Phase Rotation works on sounds above this frequency.
Initial speed Controls how abruptly Phase Rotation starts to work above Start frequency.
Lower values can cause a huge 'bump' in the phase response, which can be noticeable (some people even seem to like it).
Rotations The amount of "moving" sounds back and forward.
Smooth Smooths abrupt changes in the graph, and hence in the sound.
Low latency panel Settings that affect phase rotator artifacts and delay in low latency modes.
These settings effect latencies at and below 1024 samples.
Low Latency Look back Amont of samples to look back to.
A higher value increases the CPU load, but reduces artifacts.
Low Latency Look ahead (increases latency) Number of samples to look ahead.
The number of samples to look ahead. This increases both CPU load and latency, but reduces artifacts.
Phase Delay section Purposely introduce non-phase linear behavior.
This is thought to be useful to create certain bass sounds, but reports on the usefulness of this vary. Phase Delay Equalizer panel Configures the Phase Equalizer.
Enabled Enables the Phsae Equalizer.
Lookahead (better quality, more latency) Amount of lookahead.
Higher values give a better sound, but also more latency.