s AC Adapter Precautions

Warnings
The supplied AC adapter is designed only for Zoom products with an input rated for 9 V DC, 300 mA, center minus. Never use the adapter for any other product or purpose.
Using the adapter with a product that requires a different voltage or polarity poses a risk of fire and electric shock.
Use only the supplied AC adapter to power the unit.
Using the unit with an adapter rated for a different voltage or polarity poses a risk of fire and electric shock.

Warning

This symbol indicates explanations about dangerous matters. If users ignore this symbol Caution and handle the device the wrong way, bodily injury and damage to the equipment could result.

s Other Symbols

This symbol indicates a precaution or warning. The information is printed close to the symbol. This symbol indicates a general prohibited action. The information is printed close to the symbol. This symbol indicates a specific prohibited action. The information is printed within the symbol or close to it. (Example at left: Do not disassemble.) This symbol indicates a required action. The information is printed within the symbol or close to it. (Example at left: Disconnect the AC adapter.)
Plug the supplied AC adapter only into an AC outlet rated for the voltage as shown on the adapter.
Plugging the adapter into an outlet rated for a different voltage poses a risk of fire and electric shock.
Do not short-circuit the adapter terminals or cable.
Any short-circuiting poses a risk of fire and electric shock.
When disconnecting the AC adapter from the AC outlet, always grasp the adapter itself.
Pulling the adapter out by the cord or damaging the cord poses a risk of fire and electric shock.
Do not place heavy objects on the AC adapter or the cord and do not use metal clamps or similar with the cord.
Damaging the cord poses a risk of fire and electric shock.

s 1204 Usage Precautions

Do not try to open the case of the unit or attempt any alterations.
Opening the unit poses a risk of fire and electric shock. Zoom Corporation does not assume responsibility for any injury, accidents, damage, or malfunction caused by unauthorized alterations.

Precautions

Use the unit on a stable surface where it cannot fall over or be dropped.
Dropping the unit can lead to damage. When using the unit in a rack, fasten it securely.
Protect the unit from high temperatures. Do not store or use it in locations exposed to direct sunlight, close to heating appliances or anywhere where the ambient temperature can exceed 40 C.

(9) EDIT1 control (10) EDIT2 control With these controls, the user can adjust the parameters of the currently selected effect. The types of parameters which can be adjusted depends on the effect. (11) EQ LOW gain control (12) EQ HIGH gain control These controls adjust the low-frequency range and high- frequency range of the effect sound. In the center position, frequency response is flat. Turning the control to the left (counterclockwise) attenuates the respective frequency range and turning the control to the right (clockwise) emphasizes it. (13) MIX LEVEL control This control adjusts the balance between DRY (original) and WET (effect) sound. If the control is turned fully to the left (counterclockwise), only the original sound is output. If the control is turned fully to the right (clockwise), only the effect sound is output.
(18) Display Shows memory numbers and various other information for operating the 1204. (19) vw (value up/down) keys Serve for selecting memory numbers and changing the setting of parameters. Pressing the v (value up) key once increases the number by one count and pressing the w (value down) key decreases the number by one count. (20) Category indicators The effects of the 1204 are divided into several categories. These indicators show to which category an effect belongs. (21) STORE key When an effect was edited in manual mode or memory mode, the changed parameters can be stored in memory by pressing this key.
(6) EFFECT selector Serves to select the type of effect to be used. Effects are grouped in banks A and B with 16 effects each, giving a choice of 32 effects. (7) BANK switch Serves to switch between effect banks A and B. (8) PATTERN selector Determines the effect pattern. For each effect, 16 different patterns are available.
(14) MODE indicator (15) MODE key Switches between manual mode and memory mode. In manual mode, the indicator is lit. In memory mode, the indicator is out. (16) EFFECT indicator (17) EFFECT key Switches the effects on and off. When switched off, only the original sound is heard and the indicator is out. When effects are switched on, the indicator is lit.
(22) CANCEL key This key can be used to cancel the store process. (The key does not function as an undo key if the STORE button has already been pressed the second time.) The CANCEL key also serves to terminate the MIDI channel setting function. (23) MIDI key This key activates the MIDI channel setting function, which allows receiving MIDI signals in memory mode.

s Rear Panel

(1) (2) (3) (4)

ZOOM 1204 STUDIO

SERIAL NO. ZOOM CORPORATION MADE IN JAPAN / FABRIQU AU JAPAN

MIDI IN

L/MONO INPUT

DC9V 300mA

DC INPUT jack The cable from the supplied AC adapter is connected here. (2) MIDI jack Serves for connection to equipment with a MIDI OUT jack, such as another effect device, synthesizer or similar. MIDI signals from that equipment can be used to control the 1204.
(3) OUTPUT jacks Serve for connection to the return jacks of an instrument or mixer, or to recording/playback equipment.
(4) INPUT jacks Serve for connection to the sound source, such as the send jack of an instrument or mixer.
Note: A preamplifier (such as integrated in a mixer) or a compact effect device is required when wishing to use the 1204 with an instrument with low output level, such as an electric guitar or bass, or with a high-impedance instrument (470 kilohms or higher).

Connections

Connect an electronic instrument, microphone, mixer, or other audio equipment to the 1204 as described below.

Precaution

Before making any connections, set the power switches of all equipment to OFF. If the equipment is on, sudden noise surges can lead to hearing damage or damage to the equipment.
SERIAL NO. ZOOM CORPORATION
MADE IN JAPAN / FABRIQU AU JAPAN

Microphone

AC adapter

Electronic instrument

Amplifier

Keyboard

s Connection between electronic instrument and playback equipment
This connection example shows use of the 1204 as an effect device for electronic instruments. When using the unit in a monaural configuration, connect only the L jack. The balance between the original sound of the instrument and the effect sound is adjusted by the MIX LEVEL control.
s Connection between microphone and playback equipment
This connection example shows use of the 1204 as an effect device for vocals. Use a dynamic microphone with an impedance of 600 ohms. Plug the microphone into the MIC IN jack on the front panel of the 1204. If connected to a rear-panel INPUT jack, the volume level will not be sufficient. Normally, the signals fed to the INPUT jacks on the rear panel and the MIC IN jack on the front panel will be mixed and processed by the same effect. An exception is the Vocoder effect. When this effect is active, the signal from the MIC IN jack on the front panel and the right INPUT jack on the rear panel is mixed and used as envelope signal for controlling the Vocoder. Only the signal from the left INPUT jack on the rear panel is effect-processed and heard as sound. (The balance between the signals from the MIC IN jack and right INPUT jack can be adjusted with the EDIT 2 control.)

OUTPUT R

INPUT L/MONO
s Connection to send/return jacks of a mixer
This connection example shows use of the 1204 in the send/return loop of a mixer to which instruments or other sound sources are connected. In this case, the balance between the original sound of the mixer (DRY) and the effect sound produced by the 1204 (WET) is normally adjusted at the mixer. Therefore the MIX LEVEL control of the 1204 should be turned fully clockwise, so that only the WET sound is returned to the mixer.

RETURN

SEND 1 SEND 2
s Using two effects in parallel
The 1204 allows the simultaneous use of two effects in parallel. This is possible with the effects in bank B marked with a "/" on the display. This connection example shows how to use such effects independently in a parallel configuration.
Preamplifier, distortion processor, or similar

L/MONO

INPUT L/MONO R L OUTPUT R Keyboard Amp Guitar Amp

s 10 s

Rack Mount
This unit uses a metal enclosure and is heavier than it might seem at first glance. When mounting the unit in a rack, be sure to fasten it securely with screws, and use a rack that provides sufficient rigidity. If the unit is not secured properly, it can fall down and cause damage and injury.
MID VOCO I CO NTRO DE 512 R, ROTA L PROG RY RAMS
Do not stack the unit directly on top of other components. Overheating poses a risk of fire and can lead to performance degradation of the unit. Before moving the unit, turn off all equipment and disconnect the AC adapter and all other cables. Failure to observe this precaution can lead to damage to connected equipment. Use the unit on a stable surface where it cannot fall over or be dropped. Dropping the unit can lead to damage.

UT OU TPU T

6 A B BA 9

ZO OM STU DIO

LOW HIG

H DR Y WET

EFFE CT
REV MOD PARA SFX MID I MAD E IN STOR E

SERI CANCEL

This product conforms to EIA and DIN specifications for 19-inch rack mounting. We recommend to mount the unit in a rack rather than just placing it on a table or similar.
* Screws for rack mounting are not included with the unit.

s 11 s

This chapter will help you get acquainted with the 1204, showing you how to use and change effects and how to store settings.

3. Use the BANK switch to select the bank (A or B) that contains the desired effect. 4. Turn the EFFECT selector to the position where the name of the desired effect is shown. The effect is now selected.

s Selecting a pattern

Next, try selecting a pattern. 1. Select an effect as described above. 2. Use the PATTERN selector to select any desired pattern.
Note: The action of the pattern depends on which type of effect is selected. For details, please refer to the chapter "Effect Types, Effect Patterns, Effect Parameters" on page 24.
The pattern is now selected.

s 16 s

s Adjusting an effect
When an effect and pattern have been selected, you can further adjust the effect to your liking. 1. Select the effect as described above. 2. Select the pattern as described above. 3. Use the MIX LEVEL control to adjust the balance between DRY and WET sound. 4. Use the EQ LOW control to adjust the low-frequency boost or cut. Turning the control to the left (counterclockwise) attenuates the low frequencies and turning the control to the right (clockwise) emphasizes them. In the center position (pointing straight up), frequency response is flat. 5. Use the EQ HIGH control to adjust the high-frequency boost or cut. Turning the control to the left (counterclockwise) attenuates the high frequencies and turning the control to the right (clockwise) emphasizes them. In the center position (pointing straight up), frequency response is flat. 6. Use the EDIT1 and EDIT2 controls to adjust the effect parameters.
Note: Which parameters are assigned to the EDIT1 and EDIT2 controls depends on the selected effect. For details, please refer to the chapter "Effect Types, Effect Patterns, Effect Parameters" on page 24.
s Turning effect processing on and off
Normally, when the 1204 is turned on, effect processing is automatically enabled. This is called the "effects on" or "active" condition. In this condition, the EFFECT indicator is lit. Temporarily disabling effect processing is called the "effects off" or "inactive" condition. In this condition, the EFFECT indicator is out. By switching between the active and inactive condition, you can easily verify the sonic character of an effect. During a performance, switching can also be used to dramatically highlight a passage. By looking at the EFFECT indicator you can quickly tell whether effects are on or off. Try switching between effects on and effects off as described below. Switching effects off 1. Verify that the EFFECT indicator is lit and the output sound is the effect sound. 2. Press the EFFECT key on the front panel. 3. The EFFECT indicator goes out and effects are off.

5. To carry out the store function, press the STORE key once more. 6. The memory number on the display flashes more rapidly. 7. When the store process is completed, the memory number stops flashing and stays constantly on. The store function is now terminated.
Note: If the store function was initiated while the 1204 was in manual mode, the unit will automatically be switched to memory mode after the store function is completed.
The following items are stored in memory: EFFECT selector setting BANK switch setting PATTERN selector setting EDIT1, EDIT2 control settings (parameter settings) EQ LOW, EQ HIGH control settings MIX LEVEL control setting The following items are not stored in memory: INPUT level control setting OUTPUT level control setting EFFECT ON/OFF setting Effect setting changes made using external MIDI equipment

s 18 s

s Switching between manual mode and memory mode
The currently active mode is shown by the MODE indicator. In manual mode, the indicator is on, and in memory mode, the indicator is off. In manual mode, all effect settings can be checked visually. This mode therefore is suitable for cases where parameters of an effect are to be fine-adjusted in real time, such as during mix-down. The mode is also suitable if you want to create a new effect from scratch. The memory mode serves to instantly call up stored effect settings. This mode therefore is suitable for use during a performance where effects are to be switched frequently. In this mode, it is also possible to edit a setting that has been called up. You can easily switch between the two modes as described below. Switching from manual mode to memory mode 1. Verify that the MODE indicator is lit. 2. Press the MODE key on the front panel. 3. The MODE indicator goes out and the unit switches to memory mode. The currently selected memory number appears on the display. Switching from memory mode to manual mode 1. Verify that the MODE indicator is out. 2. Press the MODE key on the front panel. 3. The MODE indicator comes on and the unit switches to manual mode. The currently selected effect type number and bank number appear on the display.

s 19 s

s Calling up stored effect settings
Stored effect settings can be called up in the memory mode.Selecting a setting that is stored in the memory of the 1204 makes that setting active by electrically controlling the DSP (Digital Signal Processor) in the unit, but it does not change the mechanical position of the front-panel controls including the BANK switch. Therefore the frontpanel controls may indicate a setting that is different from the actual effect setting that is active in the output. When using the memory mode and not performing editing, the positions of the front-panel controls of the 1204 should be disregarded, except for the INPUT and OUTPUT level controls. To call up a stored effect setting, proceed as follows. 1. Use the MODE switch to activate the memory mode. 2. The currently selected memory number is shown on the display. 3. Use the v and w keys to select the desired memory number.

Note: When wishing to change memory numbers quickly, first press the value key for the desired direction and then hold down the other value key as well. The speed with which the memory numbers change on the display will increase. When you are close to the desired memory number, release the other key to reduce the speed again.
4. When you release the v or w (value) key, the setting stored in the currently displayed memory number is called up and becomes active in the output. Stored settings can also be called up via MIDI control. For details, please refer to page 21.
s Editing a stored setting
The memory mode normally serves to call up effect settings stored in manual mode. However, when wishing for example to slightly alter a parameter or to change only the EQ setting of an effect and store it in another memory number, it is not necessary to switch to manual mode and start the adjustment over from the beginning. Rather, you can use the capability for editing a called-up setting in memory mode. This capability is intended mainly as an auxiliary function for making slight changes. Since the procedure is somewhat more complicated than the straightforward use of the manual mode, you should make sure that you have read and understood the explanation below before using it. The setting of the front-panel controls including the BANK switch has no direct relationship to the editing process. For editing, change only the position of the required control or selector or BANK switch. Other controls should not be moved, to maintain the setting stored for those controls. Normally, the display shows the memory number, but when editing is performed, the current value appears on the display. When editing is completed, the memory number appears again. If a control or selector or BANK switch has been moved but the edited value is the same as that already stored in memory, the category indicator flashes to indicate this fact. During editing, the edit symbol is shown in the bottom right corner of the display. As opposed to manual mode, adjustments in memory mode are difficult to ascertain visually. To avoid confusion, it will normally be preferable not to change the setting of the EFFECT selector or BANK switch. When wishing to change these settings, it is best to use manual mode and perform the setting process once more.

Note: The relationship between MIDI program change messages and memory numbers of the 1204 is as shown below.
MIDI program change number

101 128

Memory number
4. To complete the MIDI channel setting function, press the MIDI key once more. The function is terminated and the display reverts to showing the memory number. The selected MIDI channel setting is automatically stored.
Note: The MIDI channel setting is retained also when the unit is turned off.
Program change messages over 100 are not accepted by the 1204.

s 21 s

s Using MIDI to change effect parameters
The 1204 allows the use of MIDI control change messages to change effect parameters. This includes all parameters except changing the effect type (as performed with the EFFECT selector or BANK switch) and adjusting the INPUT and OUTPUT level controls. Using control change messages to change effect parameters is called real-time modulation and differs from the parameter editing process described in the previous section. When real-time modulation is used, the effect sound as heard in the output changes, but the actual effect settings are not altered. Consequently, if memory store is carried out in this condition, the same settings as before will be stored. To change effect parameters via MIDI, proceed as follows. 1. Connect the MIDI OUT jack of the external device to the MIDI IN jack of the 1204. Turn all devices off before making this connection. 2. When connections are established, turn on the devices and use the MODE key of the 1204 to set it to the memory mode. 3. Set up the 1204 so that the MIDI receive channels match the MIDI send channels of the external device. 4. Send control change messages from the external device to change effect parameters at the 1204.
Note: The relationship between MIDI control change messages and effect parameters of the 1204 is as shown below.

Effect parameter

PATTERN select EDIT1 control EDIT2 control EQ LOW control EQ HIGH control MIX LEVEL control EFFECT ON, OFF
Recalling Factory Default Memory Settings
The 1204 is shipped from the factory with 100 recommended effect settings already stored in memory. When the user stores settings in memory, these factory defaults are overwritten, but they can be restored using the recall function. The recall mode is a special mode of the 1204 that is separate from the other two operation modes. It cannot be activated when the unit is already turned on. The unit must be turned off and then turned on by a special procedure, as described below. In recall mode, all 100 settings can be restored together, and it is also possible to restore individual settings. To use the recall mode, proceed as follows. 1. Turn the unit off. 2. Keep the STORE key depressed while turning the unit on with the POWER switch. 3. The indication

"AL" flashes on the display.
4. When wishing to restore all 100 settings together, press the STORE key once more in this condition. The indication on the display flashes more rapidly. When the recall process is completed, the unit automatically switches to the memory mode. 5. When wishing to restore only a particular memory number, use the v and w keys to select the desired number in step 3. 6. When the desired memory number is displayed, press the STORE key. The indication on the display flashes more rapidly and the contents of that memory number are returned to the factory default. 7. Because the unit does not automatically switch to the memory mode when individual memory numbers are being restored, it is possible to restore several numbers in succession. When you wish to terminate the recall mode, press the CANCEL key. The 1204 then switches to the memory mode. Turning the unit off also terminates the recall mode.
MIDI control change number

80, 91

s 22 s

s 23 s

EFFECT TYPES, EFFECT PATTERNS, EFFECT PARAMETERS
This chapter describes the various effect types, effect patterns, and effect parameters.

s 24 s

s Category: REV (Reverb)

BANK A EFFECT

1 HALL 2 ROOM 3 PLATE 4 VOCAL 5 AMBI(AMBIENCE) 6 ORCHE(ORCHESTRA) 7 STUDIO 8 SESSION 9 PERCUS(PERCUSSION) 10 DRUMS 11 SOLO 12 DLY(DELAY) 13 ECHO 14 GATE 15 POWER 16 REVERSE
Reverb Time = 1.0 3.8 Second Reverb Time = 0.5 3.3 Second Reverb Time = 3.0 9.0 Second Reverb Time = 1.7 4.5 Second Reverb Time = 0.6 3.4 Second Reverb Time = 0.5 3.3 Second Reverb Time = 0.5 3.3 Second Reverb Time = 0.6 3.4 Second Reverb Time = 0.6 3.4 Second Reverb Time = 0.5 3.3 Second Reverb Time = 2.Second Feedback = % (/ same value) Feedback = % (/ same value) Gate Time = mS Gate Time = mS Gate Time = mS Diffusion Diffusion Pre Delay Pre Delay High Damp Pre Delay Pre Delay Diffusion Diffusion High Damp Pre Delay

EDIT 1

Attack High Cut High Multiply Attack Density Density High cut High cut High Damp Density High cut

EDIT 2

COMMENT Simulates a medium-size concert hall Simulates an acoustically dead rehearsal studio Reverb with rich bass Reverb with a sense of depth and warmth, suitable for vocals Reverb with a bright and deep character Reverb with a spacious and warm character Simulates a large studio with high ceiling Reverb patterned on the image of a small club General-type reverb suitable for all kinds of percussion Warm reverb for snare drums and tom-tom Reverb with pre-delay, for reed solos Monitor the R input using the L output, for a maximum delay of 740 ms. Use EDIT1/EDIT2 controls to adjust L/R delay time. Fully separate 2-channel echo. Use EDIT1/EDIT2 controls to adjust L/R delay time. Gutsy gate reverb most suitable for snare drums Gate reverb with a heavy body Reverb with an effect similar to running a tape recorder in reverse

Pattern = 16 detune

DRY / Input Notes
w w w w w w w w w w w w w w w &

detune

WET / Shifted Notes Pattern = 2 DRY / Input Notes
b b n w w w w # w # w w w b w b w n w b w w w w & # # #

* Pitch Shift Intervals

WET / Shifted Notes

s 26 s

s Category: SERI (Serial)
5 DLY + REV 6 CHO + REV 7 FLG + REV 8 PIT + REV
Delay Mix Modulation Depth Modulation Frequency : Shift Down 1 oct Range 9 : Detune : Shift Up 1 oct Range
Reverb Time 0.5 3.3 Second Reverb Time 0.5 3.3 Second Reverb Time 0.5 3.3 Second Reverb Time 0.5 3.3 Second Reverb Mix Reverb Mix Modulation Depth Reverb Mix
COMMENT Serial connection of delay and reverb Serial connection of chorus and reverb Serial connection of flanger and reverb Serial connection of pitch shifter and reverb When pattern is switched, pitch shift amount varies along the major scale.
Explanation of terms Reverb Time: Adjusts the duration of the reverb sound.
Reverb Mix: Adjusts the level of the reverb sound only.
s Category: PARA (Parallel)
9 CHO/REV 10 FLG/REV 11 PIT/REV
Modulation Depth Modulation Frequency : Shift Down 1 oct Range 9 : Detune : Shift Up 1 oct Range Modulation Frequency Modulation Depth Modulation Frequency : Shift Down 1 oct Range 9 : Detune : Shift Up 1 oct Range
Reverb Time 0.5 3.3 Second Reverb Time 0.5 3.3 Second Reverb Time 0.5 3.3 Second Reverb Mix Reverb Mix Reverb Mix
COMMENT Parallel effect with chorus in left channel and reverb in right channel Parallel effect with flanger in left channel and reverb in right channel Parallel effect with pitch shifter in left channel and reverb in right channel When pattern is switched, pitch shift amount varies along the major scale. Parallel effect with tremolo in left channel and reverb in right channel Parallel effect with chorus in left channel and echo in right channel Parallel effect with flanger in left channel and echo in right channel Parallel effect with pitch shifter in left channel and echo in right channel When pattern is switched, pitch shift amount varies along the major scale.
12 TRM/REV 13 CHO/ECHO 14 FLG/ECHO 15 PIT/ECHO
Reverb Time 0.5 3.3 Second Delay Time mS Delay Time mS Delay Time mS

Remedy

Make connections as described in "Connections" and turn the unit on as described in "Power-on. " Make connections as described in "Connections. " Try replacing the cable. Check all devices and adjust controls.
Sound is distorted or breaks up.
Is input signal level too high? Is EQ LOW or EQ HIGH control turned all the way up?
Adjust INPUT level control so that PEAK indicator lights up only occasionally during signal peaks. Adjust EQ controls. Use MODE key to switch to manual mode. Press CANCEL key to terminate recall mode and use MODE key to switch to manual mode. Press EFFECT key to turn effects on. When mode is switched, settings are lost. Make the settings again and repeat the store process without switching modes. When mode is switched, settings are lost. Make the settings again and repeat the store process without switching modes. When memory number is changed, settings are lost. Make the settings again and activate store standby before changing memory numbers.
Sound is different from setting of front-panel controls.
Is memory mode selected? Is recall mode activated? Are effects switched off?
Adjust controls for proper matching with connected equipment. Adjust MIX LEVEL control. Adjust EQ controls.
Stored settings are different from established settings.
Settings were made in manual mode but unit was switched to memory mode before storing?
Settings were made in memory mode but unit was switched to manual mode before storing?
Use the front-panel MIC IN jack for a microphone and use a dynamic microphone rated for 600-ohm impedance.
Settings were made in memory mode but memory number was changed before activating store standby condition?

s 31 s

Was editing carried out in memory mode?
The effect settings called up in memory mode have no relationship to the position of the controls on the front panel. If a setting was not edited, the original (stored) setting, not the current position of the control, is effective. Therefore the stored settings will not reflect the control positions. Settings made with MIDI control change messages are only temporary and do not result in actual setting changes. If the store function is carried out, the stored contents will be the same as the original settings in memory. Use the MODE key to switch to memory mode.

Control via MIDI cannot be carried out.
Is the unit in manual mode? Is the unit in recall mode? Does the MIDI channel setting match the send channel? Are messages other than control change messages and program change messages being sent? Are program change numbers and control change numbers correct? Is the store function active?
Use the MODE key to switch to memory mode. Press the CANCEL key to switch to memory mode. Set up the 1204 to receive the required channels, using the MIDI channel setting function. Other MIDI messages such as "Note On," "System Exclusive Data," "Start/Stop," "NRPN," etc. are ignored. For information about numbers, refer to the MIDI implementation. Press the STORE key or CANCEL key to terminate the store function. Press the MIDI key or CANCEL key to terminate the function. Make connections as described in "Connections."
Was a setting made with MIDI control change messages?
Memory settings cannot be called up or memory numbers cannot be changed.
Is the unit in manual mode? Is the unit in recall mode? Are effects switched off? Is the store function active?
Press the CANCEL key to switch to memory mode. Press EFFECT key to turn effects on. Press the STORE key or CANCEL key to terminate the store function. Press the MIDI key or CANCEL key to terminate the function. Is the MIDI channel setting function active?
Is the MIDI OUT jack of the other device connected correctly to the MID IN jack of the 1204?
Is the MIDI channel setting function active?

s 32 s

Usage Precautions
s Electrical interference
For safety considerations, the 1204 has been designed to provide maximum protection against the emission of electromagnetic radiation from inside the device, and from external interference.However, equipment that is very susceptible to interference or that emits powerful electromagnetic waves should not be placed near the 1204, as the possibility of interference cannot be ruled out entirely. Whatever the type of digital control device, the 1204 included, electromagnetic damage can cause malfunctioning, and can corrupt or destroy data. Since this is an ever-present danger, thorough care should be taken to minimize the risk of damage.

s Cleaning

Use a soft, dry cloth to clean the 1204. If necessary, slightly moisten the cloth. Do not use abrasive cleanser, wax, or solvents (such as paint thinner or cleaning alcohol), since these may dull the finish or damage the surface.
Please keep this manual in a convenient place for future reference.

s 33 s

s 34 s

Specifications

ZOOM STUDIO 1204 Number of preset programs: Program memory capacity: 512 (16 effects x 2 banks x 16 patterns) 100 settings (overwrite and store) 612 programs A/D converter: 18 bit, 128 times oversampling D/A converter: 18 bit, 128 times oversampling Sampling frequency: 44.1 kHz Frequency response: 10 Hz 20 kHz Inputs Rear inputs (L/MONO, R): standard monaural phone jack x 2 Reference input level: -10 dBm to +4 dBm Input impedance: 10 kilohms (MONO), 20 kilohms (STEREO) MIC input: standard monaural phone jack x 1 Reference input level: -56 dBm to -36 dBm Input impedance: 10 kilohms Outputs Rear outputs (L, R): standard monaural phone jack x 2 Reference output level: -10 dBm to +4 dBm Input impedance: 2 kilohms or less Control connector: MIDI IN Power requirements: 9 V DC, 300 mA (from supplied AC adapter) Dimensions: 482 (W) x 44 (H) x 115 (D) mm Weight: 1.5 kg * 0 dBV = 0.775 Vrms * Design and specifications subject to change without notice.

s 35 s

1204 MIDI IMPLEMENTATION
1.TRANSMITTED DATA NONE 2.RECOGNIZED DATA 1) CHANNEL VOICE MESSAGES
STATUS SECOND THIRD DESCRIPTION

Table 1.

Parameter Effect Pattern Edit 1 Edit 2 EQ Low EQ High Mix Level Effect ON/OFF Control No. 80,91 Control Value. 127 127=OFF

1011 nnnn

0ccc cccc

0vvv vvvv

CONTROL CHANGE nnnn : MIDI Channel No.( ) ccc cccc : Control No. ( See Table 1 ) vvv vvvv : Control Value ( See Table 1 )

63=ON / 64

1100 nnnn

0ppp pppp

---- ----
PROGRAM CHANGE nnnn : MIDI Channel No.( ) ppp pppp : Program No.( )

s 36 s

ZOOM CORPORATION
NOAH Bldg., 2-10-2, Miyanishi-cho, Fuchu-shi, Tokyo 183, Japan PHONE: 0423-69-7111 FAX: 0423-69-7115 Printed in Japan 1204-5000

ZOOM STUDIO

Reverse SFX Power Pit/Echo Gate Flg/Echo Echo Cho/Echo Dly Tim/Rev Solo Pit/Rev Drums Flg/Rev Percus Cho/Rev Hall Chorus Room Flanger Plate Pitch 3 Vocal Tremolo Ambi Dly+Rev A B 12 Orche Cho+Rev Studio Flg+Rev Session Pit+Rev 8 9

(Demo)1

MIDI CONTROL WITH VOCODER, ROTARY 612 PROGRAMS

LOW HIGH DRY

MANUAL

MEMORY

STORE REV MOD CANCEL SERI PARA

BANK EDIT

MADE IN JAPAN

MIC IN

OUTPUT

EFFECTS

PATTERN

EFFECT

Reverse SFX Power Pit/Echo Gate Flg/Echo Echo Cho/Echo Dly Tim/Rev Solo Pit/Rev Drums Flg/Rev Percus Cho/Rev
Hall Chorus Room Flanger Plate Pitch 3 Vocal Tremolo Ambi Dly+Rev Orche Cho+Rev 6 A B Studio Flg+Rev Session Pit+Rev 8 9

!3 !4!5

@1 @2 @3

!1 !2 e r t !3

u @3 i !63 !7

MIDI IN

ZOOM 1204 STUDIO
SERIAL NO. ZOOM CORPORATION MADE IN JAPAN / FABRIQU AU JAPAN

L/MONO INPUT

DC9V 300mA
SERIAL NO. ZOOM CORPORATION
MADE IN JAPAN / FABRIQU AU JAPAN

INPUT L/MONO

OUTPUT R

RETURN

SEND 1 SEND 2

L/MONO

Keyboard Amp Guitar Amp
MID VOCO I CO NTRO DE 512 R, ROTA L PROG RY RAMS

UT OU TPU T

6 A B BA 9

ZO OM STU DIO

LOW HIG

H DR Y WET

REV STOR CANC MID E

MOD SERI PARA SFX EL

BANK A
1 HALL 2 ROOM 3 PLATE 4 VOCAL 5 AMBI(AMBIENCE) 6 ORCHE(ORCHESTRA) 7 STUDIO 8 SESSION 9 PERCUS(PERCUSSION) 10 DRUMS 11 SOLO 12 DLY(DELAY) 13 ECHO 14 GATE 15 POWER 16 REVERSE
Reverb Time = 1.0 3.8 Second Reverb Time = 0.5 3.3 Second Reverb Time = 3.0 9.0 Second Reverb Time = 1.7 4.5 Second Reverb Time = 0.6 3.4 Second Reverb Time = 0.5 3.3 Second Reverb Time = 0.5 3.3 Second Reverb Time = 0.6 3.4 Second Reverb Time = 0.6 3.4 Second Reverb Time = 0.5 3.3 Second Reverb Time = 2.Second Feedback = % (/ same value) Feedback = % (/ same value) Gate Time = mS Gate Time = mS Gate Time = mS Diffusion Diffusion Pre Delay Pre Delay High Damp Pre Delay Pre Delay Diffusion Diffusion High Damp Pre Delay

EDIT 1

Attack High Cut High Multiply Attack Density Density High cut High cut High Damp Density High cut

EDIT 2

COMMENT
Delay Time L PATTERN : 0.4 180mS PATTERN : 11 370mS Delay Time L PATTERN : 0.4 180mS PATTERN : 11 370mS Density High Damp Diffusion
Delay Time R PATTERN : 0.4 180mS PATTERN : 11 370mS Delay Time R PATTERN : 0.4 180mS PATTERN : 11 370mS Gate Threshold Gate Threshold Gate Threshold

BANK B

1 CHORUS 2 FLANGER 3 PITCH
Modulation Depth Modulation Frequency 0.1 1.9 Hz : Shift Down 1 oct Range 9 : Detune : Shift Up 1 oct Range Modulation Delay Modulation Depth Semi Tone Shift
Modulation Frequency 0.13 1.39 Hz Modulation Feedback Detune Width

4 TREMOLO

Modulation Frequency 0.14 5.24 Hz Delay Time ms

Delay Feedback

Pattern = 2

DRY / Input Notes

w w w w w w w w w w w w w w w &

detune 15 16

detune
WET / Shifted Notes Pattern = 2 DRY / Input Notes
b b n w w w w # # w w w b w b w n w b w w w w w & # # #

WET / Shifted Notes

5 DLY + REV 6 CHO + REV 7 FLG + REV 8 PIT + REV
Delay Mix Modulation Depth Modulation Frequency : Shift Down 1 oct Range 9 : Detune : Shift Up 1 oct Range
Reverb Time 0.5 3.3 Second Reverb Time 0.5 3.3 Second Reverb Time 0.5 3.3 Second Reverb Time 0.5 3.3 Second Reverb Mix Reverb Mix Modulation Depth Reverb Mix
9 CHO/REV 10 FLG/REV 11 PIT/REV
Modulation Depth Modulation Frequency : Shift Down 1 oct Range 9 : Detune : Shift Up 1 oct Range Modulation Frequency Modulation Depth Modulation Frequency : Shift Down 1 oct Range 9 : Detune : Shift Up 1 oct Range
Reverb Time 0.5 3.3 Second Reverb Time 0.5 3.3 Second Reverb Time 0.5 3.3 Second Reverb Mix Reverb Mix Reverb Mix
12 TRM/REV 13 CHO/ECHO 14 FLG/ECHO 15 PIT/ECHO
Reverb Time 0.5 3.3 Second Delay Time mS Delay Time mS Delay Time mS
Reverb Mix Echo Mix Echo Mix Echo Mix

16 SFX

VOCODER / : Vocoder Type Vocoder Distortion
ROTARY / : Rotary Type Vocal Distortion / : Distortion Type ZNR / : ZNR Threshold
Horn Speed Delay Time mS Depth - L
Rotor Speed Delay Mix Depth - R
1.TRANSMITTED DATA NONE 2.RECOGNIZED DATA 1) CHANNEL VOICE MESSAGES STATUS SECOND THIRD DESCRIPTION Table 1. Parameter Effect Pattern Edit 1 Edit 2 EQ Low EQ High Mix Level Effect ON/OFF Control No. 80,91 Control Value. 127 127=OFF

1011 nnnn

0ccc cccc

0vvv vvvv

CONTROL CHANGE nnnn : MIDI Channel No.( ) ccc cccc : Control No. ( See Table 1 ) vvv vvvv : Control Value ( See Table 1 )

63=ON / 64

1100 nnnn

0ppp pppp

---- ----
PROGRAM CHANGE nnnn : MIDI Channel No.( ) ppp pppp : Program No.( )