Korg NAUTILUS Series Operation Manual page 133

1...4: The external audio input signal will be sent to
Individual 1...4 outputs in mono. Pan does not apply in this
case.
1/2, 3/4: The external audio input signal will be sent to the
selected pair of outputs in stereo, with the stereo position
controlled by the Pan parameter. Set Source Bus to the
corresponding Indiv. input.
Off: The external audio signal will not be sent to a bus. In
SAMPLING mode, if you want to sample an external audio
signal directly without routing it through a bus, go to the
Recording– Audio Input page, and choose the external input
you want to sample (Audio Input 1–2, USB 1–2) as the
Source Bus.
Please note that when you change Bus Select
(IFX/Indiv.) from Off to L/R or IFX, the volume level to
the AUDIO OUT L/MONO and R jacks or to the
headphones may dramatically increase.
FX Ctrl Bus
The FX Control Buses lets you create effects "sidechains."
Sidechains let you control an effect with one audio signal
(the sidechain), while the effect processes a completely
different audio signal. This is convenient for use with
vocoders, compressors and limiters, gates, etc.
NAUTILUS includes two true- stereo FX Control Buses. For
more information, see "FX Control Buses" on page 735 of
the PG.
REC Bus
This sends the external audio input signal to the REC buses
(four mono channels; 1, 2, 3, 4).
The REC buses are dedicated internal buses used for
sampling or for recording audio tracks in SEQUENCER
mode.
If you want to sample these buses, set Source Bus to a REC
bus.
In SAMPLING mode, you can mix several audio inputs to a
REC bus for sampling, or you can mix the direct sound of
audio inputs with the sound processed by insert effects and
sample the combined result from the REC bus.
In other modes (e.g., PROGRAM mode), you can use the
REC buses to sample just an audio input that's playing along
with a ARP performance being output to the L/R bus.
Off: The external audio signal will not be sent to the REC
buses. This is the default.
1, 2, 3, 4: The external audio input signal will be sent to the
specified REC bus in mono. The Pan setting is ignored.
1/2, 3/4: The external audio input signal will be sent in
stereo to the specified pair of REC buses. The Pan setting
sends the signal in stereo to buses 1 and 2 or buses 3 and 4.
Send1, Send2
These adjust the levels at which the external audio input
signal is sent to the master effects.
Send1: Send the signal to master effect 1.
Send2: Send the signal to master effect 2.
If Bus Select is set to IFX1–12, the send levels to the master
effects are set by the post-IFX1–12 Send1 and Send2.
Mute On/Off
Mutes the external audio signal that is being inputted.
Preparations for sampling Audio Settings
Solo On/Off
This indicates the Solo status of each external audio signal
input.
Sound will be output only from channels for which Solo is
On. Other channels will be muted. The solo function
includes the oscillators of the tone generator.
Pan
This specifies the panning of the external audio input signal.
When inputting a stereo audio source, you will normally set
the inputs to L000 and R127 respectively.
Level
Specifies the level of the external audio signal that will be
input. Normally you will set this at 127.
Note: The meter to the left of the Level fader shows the sig-
nal level immediately after A/D conversion, before the
Level control. Changing the Level will not affect the meter.
The audio signals from the analog inputs are converted by
an A/D converter from analog to digital signals. This
parameter sets the level of the signal immediately after it
has been converted into digital form. If the sound is
distorted even though this level setting is very low, it is
possible that the sound is distorting earlier than the A/D
converter. You'll need to adjust the Analog Input Setup
dialog (SHIFT and AUDIO IN buttons), or the output
level of your external audio source.
If Bus Select (IFX/Indiv.) isn't Off, raising the Level
will bring the external input signal into the NAUTILUS
audio system. Any noise from the inputs (even if no
actual signal is present) may be heard at the NAUTILUS
outputs.
To prevent this, if you're not using an input, turn its Bus
Select off, or set its Level to 0. REC Bus and FX Ctrl
Bus should also be turned off if you're not using them.
The same is true for the REC Source parameter. If REC
Source is set to an input, that input will be passed
through directly to the outputs—even if the input's Bus
Select is Off, or its Level is 0.
Finally, for the same reason: if you're not using the
analog inputs, set the Input Select to Line, and set the
Analog Input Gain to the minimum by using the Input
Setup dialog (SHIFT and AUDIO IN buttons).
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