Studio Tech R-4 Manual de usuario

THANK YOU FOR BUYING OUR PROFESSIONAL DIGITAL RECORDER. PLEASE READ THIS MANUAL CAREFULLY

BEFORE OPERATION AND KEEP IT FOR FUTURE REFERENCE.

PROFESSIONAL DIGITAL RECORDER

R-4

INSTRUCTION MANUAL

INTRODUCTION

External MIC

LED indicator

LCD Display

Record

Play/Pause

This package contains following parts.

ITEM QTY

Recorder 1PC

USB cable 1PC

Earphone 1PC

External MIC 1PC

User Manual 1PC

PARTS DESCRIPTION

Stop/Folder

AGC: Auto gain control

Power on/off

USB port

Volume up

Volume down

Delete/A-B

TF card slot

Lock

1. PCM linear recording

2. Support 32GB TF card

3. 10-level noise reduction

4. 16-level variable speed playback

5. 90-level VOR

6. Clock SYNC

7. 3-level AGC

8. FM radio

FEATURES:

PAC K A GE CONTENTS:

REC

PLAY

STOP/

FOLDER

VOL+

VOL-

DEL/A-B

EQ mode

File bit rate and type

Existing Folder name

MIC sensitivity

File number/Total file numbers

File name

File time

Repeat mode

Clock

Battery power indicator

Auto power on

Recording quality

VOR: voice control

Auto power off

Recording time remained

External TF card signal

KEY BUTTONS FUNCTION

Press and hold to power on/off. In standby mode press shortly to start recording.

Press again to pause recording.

Press to start playing. Press again to pause playing.

In recording mode press shortly to stop recording and save recorded file automatically.

During playing press shortly to stop playing. In standby mode press shortly to select

folder, press and hold to enter selected folder. In setup mode press shortly to return.

During playing press shortly to increase volume. In standby mode press shortly to select

recording quality. In setup mode press shortly to adjust parameters. In file browsing mode

press shortly to go to last page.

During playing press shortly to decrease volume. In standby mode press shortly to select

MIC sensitivity. In setup mode press shortly to adjust parameters. In file browsing mode

press shortly to go to next page.

In standby mode press shortly to delete selected file, press 2 times to delete all files in

selected folder, press and hold to switch between Mp3 and WAV interface. During playing

press once to set repeat starting point A, press again to set repeat ending point B.

In standby mode and file browsing mode press shortly to go to last track. During playing

press and hold to fast rewind. In FM mode press shortly to decrease FM frequency

(interval 0.1MHz), press and hold to search a lower frequency radio station.

PARTS DESCRIPTION

AGC/VOR

ON/OFF

HOLD

In standby mode press and hold to enter LINE IN setup. In standby mode and file

browsing mode press shortly to go to next track. During playing press and hold to fast

forward. In FM mode press shortly to increase FM frequency (interval 0.1MHz), press

and hold to search a higher frequency radio station.

KEY BUTTONS FUNCTION

In standby mode press shortly to enter recording setup menu, press and hold to enter

main menu. During playing press shortly to enter playback setup menu, press and

hold to change lyrics display mode. In FM mode press shortly to enter FM setup menu.

In standby mode press shortly to enter AGC setup menu, press and hold to enter VOR

setup menu. During playing press shortly to enter variable speed playback setup menu.

Main power on/off. In off position it will cut off the power.

In ON position it will lock functions of all buttons.

OPERATION

1. POWER ON/OFF

1.1 Slide ON/OFF switch on left side of the unit to ON position. Then press and hold REC button to turn it on.

LCD screen will display WELCOME and then enter in standby mode.

1.2 Press and hold REC button to exit standby mode. If you are not going to use the unit for a long period of

time please slide ON/OFF switch to OFF position to cut off power. It will save battery life.

1.3 This unit supports AUTO power ON/OFF. Please refer to introduction of CLOCK.

2. CHARGING

2.1 This unit is with built-in lithium battery. Please charge the battery when battery power is low.

2.2 This unit supports charging via PC. Connect this unit to USB port of PC with supplied USB cable for

charging. After connecting to PC press MENU button shortly to enter standby mode.

2.3 This unit supports charging also by external AC 230V/50HZ, DC5V/350mA AC/DC adapter(not included).

After connecting external AC/DC adapter press MENU button shortly to enter standby mode.

2.4 Charging time is 3~4 hours.

NOTE: During charging please keep ON/OFF button on left side of unit in ON position.

OPERATIONOPERATION

3. RECORDING

3.1 RECORDING WITH BUILT-IN MIC(VOICE RECORDING)

3.1.1 Remove the external MIC on top of unit. Press REC button to start recording. Screen will display

recorded file name, MIC sensitivity, recording quality, VOR status, recording time, time remained

for recording, clock etc.

3.1.2 During recording press REC button to pause recording. Press again to resume recording.

3.1.3 Press STOP button to stop recording. Recorded file will be saved automatically in VOICE folder.

3.1.4 Press PLAY button to play recorded file.

3.2 RECORDING WITH EXTERNAL MIC(VOICE RECORDING)

3.2.1 SINGLE MIC: Insert external single MIC into MIC IN jack on top the unit. In RECORD setup menu

set line in mode to MIC(refer to 4.3). Then press REC to start recording. Press STOP button to

stop recording and save recorded file in VOICE folder.

3.2.2 DUAL MIC: Insert supplied dual MIC into MIC in jack. In RECORD setup menu set line in mode to

MIC(refer to 4.3). Then press REC to start recording. Press STOP button to stop recording and

save recorded file in VOICE folder.

3.3 TELEPHONE RECORDING(VOICE RECORDING)

In RECORD setup menu set line in mode to MIC (refer to 4.3). Connect telephone adapter with this

unit with 3.5mm cable. And connect telephone adapter with your telephone. See following illustration.

When you make a call press REC to start recording. Press STOP button to stop recording and save

recorded file in VOICE folder.

NOTE: Telephone adapter, telephone cable and 3.5mm cable are optional accessories.

3.4 RECORDING WITH EXTERNAL AUDIO SOURCE(LINE RECORDING)

Connect external audio source(such as PC, CD player etc) to MIC IN jack. In RECORD setup menu

set line in mode to LINE(refer to 4.3). Then press REC to start recording. Press STOP button to stop

recording and save recorded file in LINE folder.

3.5 FM RECORDING: In FM mode select radio station you want to record. Then press REC to start

recording. Press STOP button to stop recording and save recorded file in FM folder.

3.6 MONITORING: In RECORD setup menu( refer to 4.5) turn on monitoring. Insert earphone into PHONE

jack to monitor recording.

3.7 IMPORTANT NOTICE

3.7.1 In line recording mode please set input volume to suitable level to avoid distortion.

3.7.2 If screen displays FULL please upload files in recorder to computer to have more memory. Or you will

be not able to record.

3.7.3 This unit has AGC function. For long distance recording please set AGC to HI.

3.7.4 Before operation please check LOCK button is in OFF position.

OPERATIONOPERATION

4. RECORD SETUP

4.1 RECORDING QUALITY

4.1.1 In standby mode press VOL+ button repeatedly to adjust recording quality. Press MENU button to

confirm.

4.1.2 Or in standby mode press MENU button shortly to enter RECORD setup menu. Choose RECORD

QUALITY submenu to set recording quality. Press MENU button to return.

XQ: Super High-quality PCM linear recording, 348Kbps, WAV

HQ: High quality, 192 Kbps, Mp3

SP: Standard quality, 128 Kbps, Mp3

LP: Low quality for long time recording, 64 Kbps, Mp3

4.2 MIC SENSITIVITY

4.2.1 In standby mode press VOL- button repeatedly to adjust MIC sensitivity(HI, MD, LO). Press MENU

button to confirm.

4.2.2 Or in standby mode press MENU button shortly to enter RECORD setup menu. Choose MIC

SENSITIVITY submenu to set MIC sensitivity. Press MENU button to return.

HI: High sensitivity

MD: Medium sensitivity

LO: Low sensitivity

4.3 LINE IN

4.3.1 In standby mode press and hold NEXT button to enter LINE IN setup menu. Press PREVIOUS/NEXT

button to select suitable line in mode. Press MENU button to return.

4.3.2 Or in standby mode press MENU button shortly to enter RECORD setup menu. Choose LINE IN

submenu to select suitable line in mode. Press MENU button to return.

4.3.3 LINE IN mode:

LINE: This mode is suitable for audio source with high output such as CD, PC etc.

MIC: This mode is suitable for audio source with low output such as external single MIC, dual MIC

and telephone

4.3.4 Default line in mode is MIC.

4.4 VOR

4.4.1 In standby mode press and hold AGC button to enter VOR setup submenu to turn on/off VOR.

4.4.2 Or in standby mode press MENU button shortly to enter RECORD setup menu. Choose VOR

submenu to turn on/off VOR.

4.4.3 When VOR is turned on you can set VOR level. There are 90 VOR levels. Big level need louder voice

to start recording.

4.4.4 After VOR is turned on the recorder will start recording or pause recording according to voice level

received. This will save memory.

4.5 MONITOR: In standby mode press MENU button shortly to enter RECORD setup menu. Choose

MONITOR submenu to turn on or off monitor.

4.6 AGC: In standby mode press AGC button shortly to enter AGC setup submenu.

Or press MENU button shortly to enter record setup menu. Choose AGC submenu to

set AGC level: HI, MD, LO. When AGC is in HI level low level voice can be recorded.

4.7 NOISE REDUCTION:

4.7.1 This unit is with intelligent noise reduction function. It can filter environment noise during recording.

4.7.2 In standby mode press MENU button shortly to enter RECORD setup menu. Choose NOISE

REDUCTION submenu to set noise reduction level(0~10).

OPERATIONOPERATION

5. PLAYBACK SETUP

During playing press MENU button shortly to enter playback setup.

5.1 REPEAT: There are 5 repeat modes: repeat one, repeat all, normal, random and browse.

In playback setup menu choose REPEAT submenu. Press PREVIOUS/NEXT button to select repeat

mode. Press MENU button to confirm.

5.2 EQ: There are 7 EQ modes: natural, rock, pop, classic, soft, jazz, bass.

In playback setup menu choose EQ submenu. Press PREVIOUS/NEXT button to select EQ mode.

Press MENU button to confirm.

5.3 VARIABLE SPEED: There are 16 levels variable speed playback: -8~+8. In playback setup menu

choose VARIABLE SPEED submenu. Press PREVIOUS/NEXT button to select playback speed level.

0 is standard level.

5.4 A-B REPEAT: During playing press DEL button to set repeat starting point. Press again to set repeat

ending point. Then the unit will repeat playing content between point A and B. Press PLAY button to

return to normal playback.

5.5 REPEAT TIMES: To set A-B repeat times: 1~10. Default setting is 5 times.

5.6 REPEAT INTERVAL: To set A-B repeat interval: 1~10 seconds. Default setting is 1s.

6. FILE MANAGER

6.1 This unit has 4 folders in built-in memory: VOICE, LINE, FM, MUSIC. VOICE, LINE and FM folders

are default folders for recorded files. We suggest to save music files in MUSIC folder.

6.2 In standby mode press STOP button repeatedly to select folder.

6.3 If screen displays FULL please upload files in recorder to computer. Or recording is not allowed.

6.4 Users can set up their own folders in built-in memory to us it as a flash drive. But this unit supports

only Mp3 and WAV format files.

6.5 File list: In standby mode press and hold STOP button to list all files in existing folder. Press VOL+

or VOL- to go to last or next page. Press PREVIOUS or NEXT button to select file. Press STOP

button to return to last menu.

6.6 Delete file: In standby mode press DEL button shortly to delete selected file, press 2 times to delete

all files in selected folder. Only MP3 and WAV files can be deleted. To delete other format files please

connect this unit to computer.

6.7 File name: Voice recorded files name starts with V. Line recorded files name starts with L. FM recorded

files name starts with F. For example V0810001. V means voice recorded file. 0810 means recorded

date Aug 10th. 001 means the first recorded file on Aug 10th.

6.8 Mp3 and WAV interface change: In standby stop mode press and hold DEL button to switch between

Mp3 and WAV interface. In Mp3 interface only Mp3 files are listed and can be operated. In WAV

interface only WAV files are listed and can be operated.

OPERATIONOPERATION

7. FM RADIO

7.1 In standby mode press and hold MENU button to enter main menu. Choose FM and press MENU

to enter FM mode. Choose a FM frequency. Press PREVIOUS or NEXT button to adjust frequency

manually(Frequency interval is 0.1MHz). Press and hold PREVIOUS or NEXT button to search a

lower or higher frequency radio station automatically and save it in memory.

7.2 During playing press REC button shortly to record selected FM radio station. Press STOP button

to delete selected FM radio station from memory. Press and hold STOP button to exit FM.

7.3 FM main menu: In FM mode press MENU button to enter FM main menu.

7.3.1 Save FM radio stations manually: After search a radio station manually choose SAVE in FM

setup menu to save searched radio station.

7.3.2 FM recording: During playing FM press MENU shortly to enter FM setup menu. Choose FM

recording to start recording. Press STOP button to save recorded file in FM folder.

7.3.3 Delete FM radio station: In FM setup menu press PREVIOUS or NEXT button to select DELETE

ONE or DELETE ALL and press MENU button to confirm deleting.

7.3.4 FM band: In FM setup menu choose normal FM band or Japan FM band and press MENU to

confirm. Normal FM band: 87~108MHz; Japan FM band: 76~90MHz

NOTE: Before using FM please connect headphone to be used as antenna. Or it is possible no radio

stations can be searched.

8. CLOCK

In standby mode press and hold MENU button to enter main menu. Press

to select CLOCK and press menu to enter CLOCK setup submenu.

8.1 CALENDAR: In CALENDAR setup interface press PREVIOUS or NEXT to adjust month. Press VOL+

or VOL- to adjust date. Press MENU to confirm and return to last interface. Press STOP to cancel and

return to last interface.

8.2 CLOCK: In CLOCK setup interface press PREVIOUS or NEXT to select YEAR/MONTH/DATE/HOUR/

MINUTE/SECOND and press VOL+ or VOL- to adjust parameters. Press MENU to confirm and return

to last interface. This unit has CLOCK SYNC function. After connecting this unit with PC, clock will be .

synchronized with PC clock.

8.3 AUTO POWER ON

8.3.1 ON/OFF: Choose AUTO POWER ON and press menu to select ON or OFF.

8.3.2 Period : One (need to set power ON date. Valid for one time only), everyday, every week (same day

of every week).

8.3.3 Power on time: Press PREVIOUS or NEXT to select HOUR/MINUTE and press VOL+ or VOL- to

adjust parameters.

8.4 AUTO POWER OFF

8.4.1 ON/OFF: Choose AUTO POWER OFF and press menu to select ON or OFF.

8.4.2 Period : One( need to set power ON date. Valid for one time only), everyday, every week (same day

of every week).

8.4.3 Power off time: Press PREVIOUS or NEXT to select HOUR/MINUTE and press VOL+ or VOL- to

adjust parameters.

PREVIOUS or NEXT button

OPERATIONOPERATION

9. SYSTEM SETUP

In standby mode press and hold MENU button to enter main menu. Press

to select SYSTEM SETUP and press menu to enter SYSTEM SETUP submenu.

9.1 MEMORY SELECT: Users can select built-in flash memory or TF card to save recorded files. If TF

card is selected, but TF card is not connected, unit will save recorded files in built-in flash memory

and memorize built-in flash memory as default memory.

9.2 PASSWORD

9.2.1 In PASSWORD interface choose PASSWORD(OFF) and press MENU to turn it on. Default password

is 0000.

9.2.2 After password function is turned on users can change password. Press PREVIOUS or NEXT button

to select number position and press VOL+ or VOL- to change numbers of each position. Press

MENU button to confirm and return to last interface.

9.2.3 To turn off password function choose PASSWORD(ON) and press MENU. A window will display

asking for existing password. Type in the password you set. If you type in wrong password you will

not be able to turn off password function.

9.2.4 If you have set password, when turn unit on or connect it to PC you need to type in correct password

to operate this unit. If you type in wrong password 3 times unit will be turned off automatically.

NOTE: To avoid possible damage or loss of data in this unit, if you want to set password please write down

your password and keep it in save place.

9.3 BACKLIGHT: Choose BACKLIGHT and press PREVIOUS or NEXT to adjust backlight time.

0: light always; 5/10/15/20/25/30: backlight will be off after 5/10/15/20/25/30 seconds.

9.4 LANGUAGE: This unit supports English only.

9.5 INFO: To check system info, memory size.

9.6 RESET: To reset all setting to default settings. Password can not be reset to default setting.

PREVIOUS or NEXT button

10. DATA TRANSFER

Use supplied USB cable to connect this unit to USB port of PC. Unit will stop operation and enter into

USB connection mode. Screen will display USB. And you will find a disk label in your PC. Enter the disk

to edit the files.

-5℃-40℃

192(HQ)

128(SQ)

64(LQ)

384(XQ)

SPECIFICATIONS

DISPLAY: OLED LCD display

MEMORY: 4GB

RECORD

FILE FORMAT: MP3 WAV

BIT RATE(Kbps):

RECORD TIME:

48H 72H 144H 24H

SAMPLING RATE :

32KHz 48KHz

RECORD TYPE: MIC/LINE IN/FM

FREQUENCY

RESPONSE: 20Hz~20KHz

OUTPUT JACK: USB 2.0

SPEAKER:

S/N RATIO:

FILE SYSTEM:

φ Ω23, 8 0.5W,

≥80dB

FAT 32

BATTERY LIFE:

WORKING

TEMPERATURE:

BATTERY TYPE:

SIZE: 98x35x12mm

Lithium battery

10 hours

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