Operation Manual
System Configurations
12 Korg 1212 I/O
English
System Configurations
This chapter is intended to provide a quick guide for integrating the
1212 I/O into a variety of different setups. By its nature, the instructions
here are brief; for additional detail, please consult the manuals of the other
digital audio hardware and software being used.
Word clock settings
The great majority of technical support questions regarding the 1212 I/O
are the result of incorrect word clock settings. Incorrect word clock settings
may cause subtle degradation of audio, louder pops and clicks, altered
playback speeds, and/or timecode problems.
Keeping track of the word clock source may seem confusing at first, but it’s
really pretty simple. Just remember that, as with SMPTE synchronization
setups, there must be one and only one word clock master, with all other
devices set to slave to the master device. This means that you need to keep
track of the word clock settings on all of your digital audio devices–not just
on the 1212 I/O.
Using only the 1212 I/O’s analog input and output
The 1212 I/O can be used as a stand-alone analog I/O card, without any
digital connections. In this case, set the 1212 I/O’s word clock source to
Internal.
S/PDIF devices (DAT, effects, etc.)
There are two broad classifications of S/PDIF devices: those which can use
an external clock to control their digital output, and those which cannot.
These two types require different settings on the 1212 I/O.
Devices which do not accept external word clock
Many S/PDIF devices don’t have a separate setting for the word clock
source. For instance, many DAT machines automatically use incoming
digital audio data as the word clock source when recording, and
automatically use the internal clock source when playing back. Some
stand-alone A/D converters also may not accept an external word clock.
When recording from such devices, all the other devices must slave to the
S/PDIF device’s clock.
1. Connect the digital audio cables between the S/PDIF input and
output of the 1212 I/O and the S/PDIF device.
2. When recording from the S/PDIF device into a digital audio
program, set the 1212 I/O’s word clock source to S/PDIF•Word
Clock.