Delay Plug-Ins : Mod Delay III : Mod Delay III Controls : Delay

Delay
Link
For stereo and mono-to-stereo tracks, enable the Link button to link the Delay, Modulation, and Mix controls between the Left and Right channels. This option is highlighted when it is enabled.
For mono tracks, this option reads Mono and is display only.
Delay Time
The Delay Time control sets the delay time between the original signal and the delayed signal (from 0.0 ms to 5,000.0 ms).
Feedback (FBK)
The Feedback setting controls the amount of feedback applied from the output of the delay back into its input (from –100% to 100%). It also controls the number of repetitions of the delayed signal. Negative feedback settings give a more intense “tunnel-like” sound to flanging effects.
Low Pass Filter (LPF)
The Low Pass Filter setting controls the cutoff frequency of the Low Pass Filter (from 10 Hz to 22 kHz). Use the LPF setting to attenuate the high frequency content of the feedback signal. The lower the setting, the more high frequencies are attenuated. The maximum value for LPF is Off. This lets the signal pass through without limiting the bandwidth of the plug-in.
Sync
When Sync is enabled, and a Duration (a rhythmic note value) is selected, the Delay Time setting is affected by the session tempo. When Sync is disabled, and a Duration is selected, the Delay Time setting is affected by changes to the Tempo setting.
When Tempo Sync is enabled, the Tempo and Meter controls are uneditable and follow the session tempo and meter changes in the Pro Tools timeline. The Duration and Groove controls apply regardless of whether Sync is enabled.
Meter
The Meter setting lets you enter either simple or compound time signatures. The Meter control defaults to a 4/4 time signature.
When Sync is enabled, the Meter control is unavailable.
Tempo
The Tempo control sets the tempo in beats per minute (from 5.00 to 500.00 bpm). This setting is independent of the Pro Tools session tempo. When a specific Duration is selected, moving this control affects the Delay Time setting.
When Sync is enabled, the Tempo control is unavailable.
Duration
The Duration setting lets you set the Delay Time based on a rhythmic value. Select the desired note value (whole note, half note, quarter note, eight note, or sixteenth note). Additionally, you can select the Dot or Triplet modifier buttons to dot the selected note value or make it a triplet. For example, selecting a quarter note and then selecting the dot indicates a dotted quarter note, and selecting an eighth note and then selecting the triplet indicates a triplet eighth note.
 
Groove
The Groove control provides fine adjustment of the delay in percentages of a 1:4 subdivision of the beat (from –100% to 100%). It can be used to add “swing” by slightly offsetting the delay from the precise beat of the track.