Ext Word Clock; Internal Vari Reference; General Information; A Tape Header Information - Alesis AI-2 Reference Manual

Interface device for the alesis adat 8-track digital audio tape recorder
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SW 5
OFF
ON
OFF
ON
Switches 7 and 8. Are not currently implemented and have
been reserved for future use.

7.5 EXT WORD CLOCK

The AI-2 will measure the frequency of an external word clock
reference and display the measurement in the status menu. The
AI-2 measurement has an accuracy of 5 Hz and is intended for
information and troubleshooting purposes only.

7.6 INTERNAL VARI REFERENCE

When the AI-2 is selected as master in a synchronizer system. the
AI-2 internal variable reference can be used to run ADAT transports
off speed. Select Int Var in the reference menu and then use the
Var option to set the speed variation.
The speed variation range is nominally -300 to +100 cents at
48.000 KHz, which is the same as the ADAT pitch range. The AI-2
display shows the pitch variation and the equivalent speed variation
percentage. This range will be different when other sample rates
are selected.
To indicate when the ADATS are not running at normal play speed,
the AI-2 will turn one of the pitch control LEDS on the front panel of
the ADAT on.

7.7 GENERAL INFORMATION

7.7A Tape Header Information

The AI-2 can read and save setup and cue information to the ADAT
data header. When saving information the AI-2 writes to all ADAT
tapes, so it will not matter which machine the tapes are put in at a
future session. When reading information the AI-2 reads from the
master ADAT transport, machine number one only.

7.7B Offline

SW 6
OFF
OFF
ON
ON
66
MIDI Device ID
00 hex
29 hex
49 hex
69 hex

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