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.