Pro Tools automatically maintains time alignment between recorded MIDI events and delay compensated playback.
When Delay Compensation is enabled, a MIDI event that is recorded to sound “in time” with delay-compensated material actually is recorded late by the length of total delay in effect. To compensate, MIDI events are shifted back in time by the total session delay following each MIDI recording pass. MIDI playback after a record pass with Delay Compensation enabled accounts for the low latency recording path and maintains phase coherent time alignment with MIDI playback.