Chapter 7: Advanced Features; Adat Digital Input; Display Information; A Time Code And Position Error Displays - Alesis AI-2 Reference Manual

CHAPTER 7: ADVANCED
FEATURES
Chapter seven contains information on a number of features or
procedures that are not covered in other sections of the manual.
Some of the information in the chapter has been included for
completeness and should not be considered an advanced feature.

7.0 ADAT DIGITAL INPUT

The AI-2 ADAT menu digital input option is used to select the
transports input audio source. When set to on all the ADAT trans-
ports are set to digital input and the ADAT transport will use the
fiber optic digital input. Do not select the digital input if it is not
connected.
When digital input is selected the ADAT speed reference is derived
from the optical digital bus which must be locked to the AI-2 for
correct operation. See the AI-2 Applications section for information
on digital audio transfer, also refer to the AI-1 Reference manual.
7.1 AI-2 DISPLAY INFORMATION
In some special cases the AI-2 time code display shows a different
time code value or is calculated from different time code registers.
These special cases are covered below.

7.1A Time Code and Position Error Displays

In chase mode the AI-2 normal time code display shows ADAT
absolute time and the position error display shows the difference
between the ADAT transport and the reader input.
In controlled modes the AI-2 normal time code display shows virtual
or relative time, the ADAT position minus the AI-2 offset, and the
position error display shows the difference between the actual
ADAT position and the virtual position.
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