System Configurations - Korg Soundlink DRS OASYS PCI Installation Manual

Installation and Setup
System Configurations
This chapter is intended to provide a quick guide for integrating the OASYS PCI
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.
Be sure to consult the OASYS PCI FAQ for information on specific audio/MIDI
programs, as well as any late-breaking information.
Word clock and sample rate settings
With digital audio cards, the great majority of technical support questions are the
result of incorrect word clock settings. Incorrect word clock settings may cause
subtle degradation of audio, louder pops and clicks, altered pitch and 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 OASYS PCI.
For more background information, see "A few words on word clock," on page 38.
Sample rate setting must match external clock source
When you record or play back audio data using external clock sources (such as the
S/PDIF, ADAT, or Word Clock inputs), the sample rate is controlled entirely by the
external source, and not by the digital audio program's sample rate parameter.
Because of this, you must make sure that the external clock source is actually set to
the same sample rate as the digital audio program. If the two are different, it can
result in audio playing back faster or slower than expected.
Setting the word clock source in the OASYS PCI Editor
You can set the OASYS PCI's sample rate and word clock source from within the
OASYS PCI Editor. To do so:
1.
The Preferences window will appear.
2.
The MIDI/Global page will appear.
The Sample Rate and Clock Source parameters are in the Global Settings section, in
the lower right-hand corner of the window.
3.
OASYS PCI
In the OASYS PCI Editor, select Preferences... from the Edit menu.
Click on the MIDI/Global tab.
Set the Sample Rate and Clock Source as desired.

System Configurations

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