Korg OT-12 Manual

Korg DJ udstyr OT-12

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3. Press the NOTE [√] or [ ] switch to select the note name (C–B) that you®

wish to tune.

Each time you press the switch, the note name will change in semitone steps.

If you press and hold the switch, the note name will change continuously.

This setting will be remembered even if you change modes.

4. Play a single note on your instrument, and tune so that the V

U style

meter

moves to the 0 position (center) and the pitch guide LEDs are both lit.

The meter will operate when the difference between the specified note and

the input pitch is in the range of -500 cents – +500 cents.

■ Auto meter mode

In this mode you can tune any note you input.

1. Make the settings described in steps 1–4 of “Preparations for tuning.”

2. Set the [MODE] dial to AUTO-SLOW, AUTO-MEDIUM, or AUTO-FAST.

AUTO-SLOW: The VU style meter will respond slowly to the input sound.

AUTO-FAST: The VU style meter will respond rapidly to the input sound.

AUTO-MEDIUM: The response will be between that of AUTO-SLOW and AUTO-

FAST.

3. Play a single note on your instrument.

The LCD display will indicate the closest note name and the octave for the

pitch that you played.

Tune your instrument approximately so that the correct note name is

displayed.

4. Tune your instrument so that the

VU style

meter moves to the 0 position

(center) and the pitch guide LEDs are both lit.

The meter will indicate the difference between the specified note and the

input pitch in the range of -50 cents – +50 cents.

If you use the internal mic of the OT–12 to tune, place your instrument as close

as possible to the internal mic so that extraneous sounds are not picked up by

the mic.

In some cases, such as when the sound contains numerous overtones, the OT–12

may have difficulty detecting the pitch. If this occurs, change the volume or

octave, and try again.

■ Sound mode

In this mode you can tune to a reference pitch sounded by the OT–12.

1. Make the settings described in steps 1–4 of “Preparations for tuning.”

2. Set the [MODE] dial to SOUND- or SOUND- .

The setting produces a low-volume reference tone. The setting

produces a loud reference tone.

3. Press the NOTE [√] or [®] switch to select the note that you wish to tune.

Each time you press the switch, the reference pitch will change in semitone

steps over a five octave range of C2–C7.

This setting is remembered even if you change modes.

4. Tune your instrument to the reference pitch that is output by the OT–12.

■ Sound Back mode

This mode outputs the reference pitch that is closest to the note you input via

the INPUT jack, and displays the difference between your note and the

reference pitch in the meter.

1. Make the settings described in steps 1–4 of “Preparations for tuning.”

2. Set the [MODE] dial to SOUND BACK - or SOUND BACK- .

The setting produces a low-volume reference tone. The setting

produces a loud reference tone.

3. Play a single note on your instrument.

The reference pitch closest to the note that you played will be sounded, and

the note name will be displayed in the LCD. The meter will indicate the

difference between the specified note and the input pitch in the range of -50

cents – +50 cents. Tune your instrument approximately so that the correct

reference pitch is sounded.

Tune your instrument according to the reference pitch and the VU style meter .

Replacing the batteries/Memory function

When the batteries run down, accurate tuning will no longer be possible. When

directed by the low battery indicator in the LCD, replace the batteries as soon as

possible.

The batteries are also used to maintain the contents of memory when the power

is off in order to preserve the reference pitch, TRANS/TEMPERAMENT setting,

and the note name selected in Manual Meter mode or Sound mode (Memory

function).

The various settings of the Memory function will be reset when you remove the

batteries or when the batteries run down. (If the AC adapter is plugged in and

connected to the OT–12, these settings will not be reset.)

You should leave the batteries installed even when using the OT–12 with its AC

adapter.

2. Insert two AA batteries.

Be careful to observe the

correct polarity (+, -).

1. Press lightly and

slide in the direction

of the arrow to open

the lid of the battery

case.

3. Close the lid of the battery case.

Adjustment

screw

Adjusting the zero point of the

VU style

meter

If the OT–12 is jarred while being transported etc., or due to normal aging after

extended use, the

VU style

meter may drift away from the 0 position (center).

Please re-adjust the VU style meter to the 0 position so that tuning will be

accurate.

1. While holding down the NOTE [√] switch, turn the power switch ON and

verify that the

VU style

meter points to the 0 position.

2. If it does not point to 0, open the battery case lid as shown in the diagram

for “Replacing the batteries/Memory function,” and use a small Phillips

screwdriver (jeweler's screwdriver) to rotate the adjustment screw until the

U style

meter points to 0.

3. After completing the adjustment (or if the V

U style

meter already points to

0), press any switch to return to normal operation, and close the lid.

Specifications

Scale :

12 equal tempered, Pythagorean, Mean tone E





Werckmeister III, Kirnberger III, Kellner, Vallotti, Young

Transposition range : C, C , D, E , E, F, F , G, G  A, B , B

Detection range : A0 (27.50 Hz)–C8 (4186 Hz)

Reference tone :

C2 (65.41 Hz)–C7 (2093 Hz) five octaves, two volume levels

Tuning modes :

Manual, Auto (SLOW, MEDIUM, FAST), Sound, Sound Back

Calibration range : A4=349–499 Hz (1 Hz steps)

Detection accuracy : +/-1 cent

Sound accuracy : C2 (65.4 Hz)–B5 (987.8 Hz) +/-0.72 cents or better

: C6 (1047 Hz)–C7 (2093 Hz) +/-1.45 cents or better

Pitch guide range :

for AUTO (SLOW, MEDIUM, FAST), SOUND BACK modes

-50 cents – -3 cents :



-3 cents – +3 cents :

, 

+3 cents – +50 cents :



for MANUAL mode

-500 cents – -3 cents :



-3 cents – +3 cents :

, 

+3 cents – +500 cents :



Connectors : INPUT (1/4” mono), OUTPUT (1/4” mono), DC IN (9V

)

Power supply : AA batteries x 2 (3 V), or AC adapter

Battery life : approximately 100 hours (alkaline batteries, Meter

mode, continuous input at A4)

Dimensions (W x H x D) : 5-1/2” x 2-3/8” x 1-9/16” (140.5 x 60.0 x 39.5 mm)

Weight : 6.8 oz [194 g] (with batteries)

Included items : Alkaline AA (LR6) batteries x 2 to verify operation

Options (sold separately) : AC adapter (9V )

* Appearance and specifications are subject to change without notice.

Using the tilt slit

The back of the OT–12 has a slit that can be used to tilt the tuner to a convenient

angle.

Insert a coin or similar object into the slit as shown below.

The V

U style

meter may drift from the 0 position (center) when the OT–12 is

tilted. If this occurs, perform the procedure described in “Adjusting the zero

point of the V

U style

meter” while the unit is tilted, so that the V

U style

meter

points to 0.

Thank you for purchasing the

Korg OT–12 Orchestral Tuner

Before you use the OT–12,

please read this owner’s

manual carefully and use the

unit as directed. After you have

read the manual, keep it for

future reference.

Precautions

Location

Using the unit in the following locations can result in a malfunction.

• In direct sunlight

• Locations of extreme temperature or humidity

• Excessively dusty or dirty locations

• Locations of excessive vibration

• Close to magnetic fields

Power supply

Please connect the designated AC adapter to an AC outlet of the correct voltage. Do not

connect it to an AC outlet of voltage other than that for which your unit is intended.

Interference with other electrical devices

Radios and televisions placed nearby may experience reception interference. Operate this unit

at a suitable distance from radios and televisions.

Handling

To avoid breakage, do not apply excessive force to the switches or controls.

Care

If the exterior becomes dirty, wipe it with a clean, dry cloth. Do not use liquid cleaners such as

benzene or thinner, or cleaning compounds or flammable polishes.

Keep this manual

After reading this manual, please keep it for later reference.

Keeping foreign matter out of your equipment

Never set any container with liquid in it near this equipment. If liquid gets into the equipment,

it could cause a breakdown, fire, or electrical shock.

Be careful not to let metal objects get into the equipment. If something does slip into the

equipment, unplug the AC adapter from the wall outlet. Then contact your nearest Korg dealer

or the store where the equipment was purchased.

THE FCC REGULATION WARNING (for U.S.A.)

This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide

reasonable protection against harmful interference in a residential installation. This

equipment generates, uses, and can radiate radio frequency energy and, if not installed and

used in accordance with the instructions, may cause harmful interference to radio

communications. However, there is no guarantee that interference will not occur in a

particular installation. If this equipment does cause harmful interference to radio or

television reception, which can be determined by turning the equipment off and on, the user

is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver

is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Unauthorized changes or modification to this system can void the user’s authority to

operate this equipment.

CE mark for European Harmonized Standards

CE mark which is attached to our company’s products of AC mains operated apparatus

until December 31, 1996 means it conforms to EMC Directive (89/336/EEC) and CE mark

Directive (93/68/EEC).

And, CE mark which is attached after January 1, 1997 means it conforms to EMC Directive

(89/336/EEC), CE mark Directive (93/68/EEC) and Low Voltage Directive (73/23/EEC).

Also, CE mark which is attached to our company’s products of Battery operated apparatus

means it conforms to EMC Directive (89/336/EEC) and CE mark Directive (93/68/EEC).

IMPORTANT NOTICE TO CONSUMERS

This product has been manufactured according to strict specifications and voltage

requirements that are applicable in the country in which it is intended that this product

should be used. If you have purchased this product via the internet, through mail order,

and/or via a telephone sale, you must verify that this product is intended to be used in the

country in which you reside.

WARNING: Use of this product in any country other than that for which it is intended

could be dangerous and could invalidate the manufacturer’s or distributor’s warranty.

Please also retain your receipt as proof of purchase otherwise your product may be

disqualified from the manufacturer's or distributor’s warranty.

Front and side panels

[MODE] dial

LCD display

Meter

NOTE[√ ®]/[ ] switches

CALIB[√ ®]/[ ] switches

Pitch guide

LED

[TRANS/TEMPERAMENT]

switch

INPUT jack (input)

Internal mic

OUTPUT jack (output)

DC IN connector

(connect AC adapter)

Power switch ( /ON/OFF)

Tuning is complete when the VU style meter points to 0

(center) and both pitch guides are lit.

Reference pitch

(calibration) Key, Temperament name

Note name, Octave

Reference pitch

volume (two steps)

Remaining battery

amount (four steps)

AUTO : Auto Meter mode (SLOW, MEDIUM, FAST)

MANUAL : Manual Meter mode

SOUND : Sound, Sound Back mode

Tuning procedure

The OT–12 provides four modes: Manual Meter, Auto Meter (

SLOW/MEDIUM/

FAST

), Sound, and Sound Back.

■ Preparations for tuning

1. If you are using an instrument with a pickup or contact mic, connect the

INPUT jack of the OT–12 to the cable (plug) from your instrument or mic.

If the OUTPUT jack of the OT–12 is connected to an amp, the sound that is

input to the INPUT jack will be output without change. Since this may cause

noise during your performance, set the power switch of the OT–12 to OFF.

If you are using the internal mic of the OT–12, tune without connecting a

plug to the INPUT jack and OUTPUT jack. If a plug is connected to the

INPUT jack or OUTPUT jack, the internal mic cannot be used.

The INPUT and OUTPUT jacks are for mono use only. Stereo plugs cannot be

used.

2. Turn the power switch to ON or . (At the position, the power will be

on and the display will be illuminated.)

When the power is on, the last-selected reference pitch (default: A=440 Hz)

and the mode last selected by the [MODE] dial will be active.

3. If you wish to change the reference pitch (calibration), press the CALIB

[√] or [®] switch.

Each time you press the switch, the reference pitch will change, and will be

shown in the display. If you press and hold the switch, the setting will

change continuously.

4. If you are tuning a transposing instrument or tuning to a classical scale,

press the [TRANS/TEMPERAMENT] switch.

Each time you press the switch, the setting (key, temperament) will change,

and will be shown in the display.

If you select a key, the characters “TRANS” will blink in the LCD display.

If you select a temperament, the setting will blink in the LCD display.

(Not display for C)

P MG: Pythagorean E : Mean Tone E MD : Mean Tone D



WM: Werckmeister III KB: Kirnberger III KN: Kellner

V T G: Vallotti Y: Young

When a classical temperament is selected, the reference pitch will be A (=+/-0

cents).

■ Manual meter mode

In this mode you can tune to a note name that you specify.

1. Make the settings described in steps 1–4 of “Preparations for tuning.”

2. Set the [MODE] dial to MANUAL.

Produkt Specifikationer

Mærke:	Korg
Kategori:	DJ udstyr
Model:	OT-12

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