Tascam GA-30CD owner manual Tuner, oscillator and metronome, Using the tuner, Using the oscillator

7 – Tuner, oscillator and metronome

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.)

Calibrating the tuning frequency

The standard tuning frequency (A4) can be adjusted.

1Press and hold OSC to start calibration. CAL appears on the LCD.

2Use 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.

3Press OSC or ESC to finish calibration and return to time display.

Tuning in chromatic mode

1Connect 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.

2Tune the guitar roughly until the note that you want to tune to appears on the LCD.

3Tune 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.

4When finished tuning, press TIME/ESC to return to the time display.

Flat In tune Sharp

Tuning in guitar mode

1Connect 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.

2Use the DOWN and UP keys to choose the string (1E, 2B, 3G, 4D, 5A or 6E) you want to tune.

3Tune the string until only the large dot at the center of the meter lights.

4When finished tuning, press TIME/ESC to return to the time display.

Using the oscillator

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.

1Press the OSC key. OSC appears on the LCD and the oscillator starts.

3Press 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

2Use the DOWN and UP keys to set the generated pitch. The default setting is A4. The selected pitch (C3–B5) appears on the screen.

The oscillator’s standard tuning frequency depends on the calibration setting. (See “Calibrating the tuning frequency” above.)

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.

1Press and hold ª/MTRO to open the Metronome

menu. As the metronome is still OFF, METRO: OFF is shown on the LCD.

2Use 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.

3Press ª/MTRO briefly. Use the DOWN and UP keys to adjust the number of beats per measure between 2 and 6.

4Press 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.

18 TASCAM GA-30CD