Specifications

Appendix B: DSP Delays Incurred by TDM Plug-Ins 85
appendix b
DSP Delays Incurred by TDM Plug-Ins
This table shows the delays inherent in each type of DigiRack TDM plug-in. Delays matter only if you
use a real-time TDM plug-in on one channel of a stereo or multichannel signal but not the others.
This can cause the channels to be out of phase. Pro Tools|HD systems provide Automatic Delay Com-
pensation, which compensates for all plug-in and bussing delays automatically. On other systems, or
to conserve DSP required by Automatic Delay Compensation, you can manually compensate for DSP
delays by nudging tracks, or using the Time Adjuster plug-in. (See “TimeAdjuster” on page 55.) Use
the following table to determine the total delay imparted by each DigiRack plug-in. See the
Pro Tools Reference Guide for more information about how to compensate for DSP delay.
Table 3. Samples of delay incurred by each real-time DigiRack TDM plug-in on HD, MIX, and DSP Farm cards
Plug-In
Samples of delay on HD
cards
Samples of delay on MIX
cards
Samples of delay on DSP
Farm cards
EQ II (1-band)
444
EQ II (4-band)
444
Compressor II
444
De-esser
444
DigiRack Pitch
333
D-Verb
333
Limiter II
444
Gate II
444
Expander/Gate II
444
Mod Delay I/II
(short)
444
Mod Delay I/II (slap)
444