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IMPORTANT SAFETY PRECAUTIONS
18 TASCAM GA-30CD
Use the built-in oscillator to output a sine wave through
the speakers. This wave can be set to any note in a
3-octave range between C3 and B5.
1 Press the OSC key. OSC appears on the LCD and
the oscillator starts.
2 Use the DOWN and UP keys to set the generated
pitch. The default setting is A4. The selected pitch
(C3–B5) appears on the screen.
3 Press TIME/ESC to finish making the setting and
return to the time display.
Use the
SIDE VOLUME
knob to adjust the level of the
oscillator.
NOTE
The oscillator’s standard tuning frequency depends
on the calibration setting. (See “Calibrating the
tuning frequency” above.)
Using the oscillator
Using the metronome
Follow these procedures to set the tempo and the
number of beats per measure for the GA-30CD’s built-
in metronome.
1 Press and hold ª/MTRO to open the Metronome
menu. As the metronome is still OFF, METRO: OFF is
shown on the LCD.
2 Use the DOWN and UP keys to adjust the tempo
in a range of 40–220 bpm (beats per minute).
Adjusting the tempo turns the metronome ON.
3 Press ª/MTRO briefly. Use the DOWN and UP
keys to adjust the number of beats per measure
between 2 and 6.
4 Press TIME/ESC when finished using the
metronome to return to the time display.
Use the
SIDE VOLUME
knob to adjust the level of the
metronome.
1 Connect a guitar and press TUNER. TUNER appears
on the LCD along with the tuning meter. 6E
appears on the right side of the LCD, indicating
that it is set to tune the 6th string.
2 Use the DOWN and UP keys to choose the string
(1E, 2B, 3G, 4D, 5A or 6E) you want to tune.
3 Tune the string until only the large dot at the
center of the meter lights.
4 When finished tuning, press TIME/ESC to return
to the time display.
Tuning in guitar mode
1 Connect a guitar and press TUNER. TUNER appears
on the LCD along with the tuning meter shown to
the right. Play the guitar string you want to tune.
The LCD will show the name of the closest note.
2 Tune the guitar roughly until the note that you
want to tune to appears on the LCD.
3 Tune until only the meter's large central dot
lights. If the pitch is too low (flat), the dots left of
the center light. If the pitch is too high (sharp), the
dots right of the center light. More dots light as
the string goes further out of tune.
4 When finished tuning, press TIME/ESC to return
to the time display.
Flat Sharp
In tune
Flat Sharp
In tune
Tuning in chromatic mode
The standard tuning frequency (A4) can be adjusted.
1 Press and hold OSC to start calibration. CAL
appears on the LCD.
2 Use the DOWN and UP keys to adjust the standard
tuning frequency from 435 Hz to 445 Hz. Press
the CENTER key to restore the default setting of
440 Hz.
3 Press OSC or ESC to finish calibration and return
to time display.
Calibrating the tuning frequency
Using the tuner
The GA-30CD has a built-in guitar tuner with 2 modes
–chromatic mode and guitar mode. In chromatic mode
(the default setting), the GA-30CD automatically detects
the input signal pitch. Guitar mode helps you tune
strings to standard guitar tuning. (See the “Changing
settings” chapter on page 19 for details on setting the
tuner mode and sound output.)
7 – Tuner, oscillator and metronome