Korg m3 Operation Manual page 216

Make sure that the Status is INT or BTH. → p.73, p.83
Are the Key Zone and Velocity Zone set so that sound
will be produced when you play? → PG p.27, p.77,
p.155, p.163, p.235, p.253
Is the Oscillator, Drum Track, Timbre, or Track level
lowered in the control surface mixer? → p.47
Audio inputs don't work properly
Are the appropriate sources connected to the AUDIO
INPUT 1, 2 jacks, or the S/P DIF IN jack? → p.28
If there is no sound in Sampling mode, check that Bus
Select, and Level are set correctly in the Sampling P0:
Recording– Audio In/Setup page. → p.112
Alternatively, is SAMPLING REC turned on?
If there is no sound in Program, Combination, and
Sequencer modes, check that Bus Select, and Level are
set correctly in Global P0: Basic Setup– Audio page; or
in the P0: Play(/REC) Sampling/Audio In pages of
Program, Combination, or Sequencer modes. → p.123,
p.159
Is Use Global Setting set correctly? → PG p.9, p.130,
p.205
If you are inputting sound to the AUDIO INPUT 1 and
2 jacks, make sure that the AUDIO INPUT LEVEL
knob is raised. → p.16, p.112
If you are inputting sound to the AUDIO INPUT 1 and
2 jacks, is the MIC/LINE switch set appropriately?
→ p.16, p.112
Is an unsupported format being input from the S/P
DIF IN jack?
• Please connect an instrument or digital audio
device that is compatible with CP-1201 or S/P DIF.
Is the correct sampling frequency being input from the
S/P DIF IN jack?
• Sampling frequencies of 48 kHz can be input. If you
input an unsupported sampling frequency, noise
will occur or a message of "S/P DIF CLOCK
ERROR !" will be displayed.
Digital audio input is sometimes not heard for two or
three seconds.
Can't hear an audio CD in a USB CD-R/RW
drive connected to AUDIO INPUT
Make sure that you have selected the Media mode Play
Audio CD page or Sampling mode.
Is the output of the audio CD being input correctly?
• If you want to monitor the audio, connect the audio
output jacks (or headphone jack) of your USB CD-
R/RW drive to the M3's AUDIO INPUT 1,2.
Alternatively, connect the S/P DIF OUT jack of
your USB CD-R/RW drive to the M3's S/P DIF IN
jack.
• Set Input to Analog or S/P DIF according to the
input you're using, and set the Level and Bus
Select appropriately. These parameters are set in
the Media mode Play Audio CD page or the
Sampling mode Audio In/Setup page. → PG p.367,
p.411
• Is the Volume slider raised? (Media mode Play
Audio CD page, Sampling P5: Audio CD– Ripping
page) → PG p.367, p.411
Troubleshooting Audio input and output
Has the CD been finalized?
• A CD-R/RW disc that you wrote using the Media
mode Make Audio CD page cannot be played in
the Media mode Play Audio CD page or in
Sampling mode until you also finalize the disc.
Execute the menu command Finalize Audio CD to
finalize the disc. → PG p.436
Noise, Distortion, and other audio problems
Noise and distortion occur in the input sound or
the recorded sound
If you are recording from audio inputs 1 and/or 2, are
the AUDIO INPUT LEVEL knob and Recording Level
setting appropriate?
• If Recording Level indicates "ADC OVERLOAD !,"
adjust the LEVEL knob. If "CLIP !" is displayed,
adjust the Recording Level slider. → p.211
If you are inputting to the S/P DIF IN jack, is the level
of the output device and the Recording Level set
appropriately?
• If "CLIP !" appears, adjust the Recording Level
slider.
Is the system clock set correctly?
• If cyclic click noise is occurring, check that you
have selected the System Clock that is being input.
→ PG p.375
Noise or oscillation is heard
When using an effect on the external audio source
being input from AUDIO INPUT 1 and 2, oscillation
may occur depending on the type of effect or on the
parameter settings. Please adjust the input level,
output level, and effect parameters. You need to be
particularly careful when using a high-gain effect.
After a sample edit has been executed, or after a stereo
sample has been recorded, a small noise may be heard.
This has no effect on the audio data that was edited or
sampled.
When using the MIDI/Tempo Sync function to control
the delay time of an effect, noise may occur in the delay
sound. This noise is due to discontinuities in the delay
sound, and is not a malfunction.
Some effects, such as 017: Stereo Analog Record,
generate noise intentionally. It is also possible to create
oscillation using a filter with resonance. These are not
malfunctions.
Note that if you use the following effects with the
routing described below, a feedback loop will be
created, possibly producing a loud noise. Please use
caution.
If the signal from an oscillator or timbre/track output,
or the signal after an insert effect, is sent to the FX
Control bus and that signal is output directly, with this
output sent to the FX Control bus, a loud noise may be
output. (It is also possible that a DC component will be
output at the maximum level, producing silence.)
• When using the 002: Stereo Limiter or 005: Stereo
Gate, and the Envelope Source of these effects is set
as either FX Control 1 or FX Control 2, and Trigger
Monitor is On.
• When using 156: Vocoder, with the Modulator
Source of this effect set to FX Control 1 or FX
Control 2, and the Modulator High Mix set to other
than 0.
209