Operation Manual

System Configurations
20 Korg 1212 I/O
English
NOTE: The original ADAT defaults to “dig” at power-on.
BRC (with either original ADAT or ADAT XT)
When using the BRC with either original ADATs or ADAT XTs, the BRC
supplies the word clock to the ADAT system. The BRC can use its internal
word clock, or word clock from its 48kHz input. This is controlled by the
Clock Source parameter, under the EXT SYNC button. Once the Clock
Source has been set, you can enable or disable external sync by pressing the
EXT SYNC button, and the button’s light will toggle on and off accordingly.
To set the BRC to use its internal clock, simply make sure that the EXT
SYNC button’s light is off. (EXT SYNC also controls SMPTE
synchronization; if you need to use this feature, make sure that the Clock
Source is set to Internal.)
To set the BRC to use a word clock from the 1212 I/O, set the Clock Source
to 48kHz Input, and then turn on EXT SYNC. Connect the word clock
output of the 1212 I/O to the 48kHz Input on the back of the BRC.
Special note: ADAT timecode synchronization and clock source
When using ADAT timecode sync with the original ADAT (without BRC),
the ADAT must be the master clock source (1212 I/O set to ADAT, and
ADAT set to Internal). The 1212 I/O clock source cannot be set to either
S/PDIF•Word Clock or Internal.
With using ADAT timecode sync with the ADAT XT, the 1212 I/O’s clock
source may be set to either ADAT or S/PDIF•Word Clock. If the 1212 I/O’s
clock source is set to ADAT, set the ADAT to Internal; if the 1212 I/O is set
to S/PDIF•Word Clock, set the ADAT to Digital.
When using ADAT timecode sync with a BRC-controlled ADAT system
(with either original ADATs or ADAT XTs), it is the same as with the ADAT
XT: the 1212 I/O’s clock source may be set to either ADAT or
S/PDIF•Word Clock. See the notes under “BRC (with either original ADAT
or ADAT XT),” above.
These restrictions apply only to digital audio recording using ADAT
timecode.
Recording and playback without ADAT timecode work well with all
1212 I/O clock settings.
A few words on word clock
Whenever two or more audio devices are connected together digitally, they
are sending and receiving thousands of individual bits of data every
second.The bits are sent out continuously, one after another, at a very
steady pace. This is similar to two jugglers passing balls between each
other, while at the same time keeping up their own steady juggling
patterns.