It's all used now. .
Analog chips can only produce a single echo effect. .
Echo/echo in the digital age. . .
Look at this.
Product overview
This product adopts professional figures with high performance and high sampling frequency.
Kara processor.
High quality professional singing effect (reverberation, echo, reverberation+echo).
◆ Automatic digital feedback suppression.
◆ Level stereo digital keys control tone sandhi.
◆ Automatic priority input of group audio and video, background music function.
◆ All-digital potentiometer parameter adjustment makes the operation more convenient.
◆ Computer song ordering interface, wireless infrared remote control.
Computer real-time control, all parameters can be adjusted.
The background noise is extremely low.
◆× Character display screen, the display is more intuitive.
24-bit digital signal board /DA48kHz
good
seven
3(BGM)
Same as video-on-demand
Industrial standard for serial communication connection
162LCD
DSK2. 1
panel
12345
6789 10 1 1 12 13 14
1.LCD 16x2LCD
2. Effect master
3.MICMASTER
4. Microcomputer Center
5. Music master
Step 6 triple
7. Bass
8. Balance
9.3
10.3
1 1.
12.3""""""
13.""""""
""""
14.
Display: character display screen, used to display various parameter adjustment information.
Microphone effect volume () knob.
Microphone master volume () knob.
Subwoofer volume (knob, center volume () cross point adjustment.
Music master volume () knob.
Music treble () digital potentiometer.
Music bass () digital potentiometer.
Music output balance () digital potentiometer.
Microphone input jack.
Microphone input volume independent adjustment potentiometer.
Microphone feedback suppression function switch.
Microphone segmented equalization digital potentiometer. Low frequency band, medium frequency band, high frequency band.
Effect parameter digital potentiometer adjustment. Keywords echo time, echo feedback,
Mixed adjustment, reverberation time, reverberation low-pass filter.
Power switch.
Low medium high
Delayed repetition technology/version
Speed low pass
DSK2. 1
postnotum
1.220vact315mal250vac power socket, fuse specification: ~:
2.RS232PC real-time control interface.
3. Remote control system wire control input interface.
4. Video output.
5. Three channels of video input.
6. Subwoofer output terminal.
7.
8.BGM、DVD、AUX)
Left and right stereo output terminals.
Stereo three-way input terminal (.
9. Input potentiometer adjustment.
~ 220v fuse: t1315ma/250v.
Introduction to operation
First of all, the music part
1.DVD、VCD3DVD、AUX、BGM)
Music master)
Connect the sound source signal () to any audio input (terminal,
Then adjust the audio input potentiometer to the appropriate size. Then turn up the music volume (
Turn the knob to adjust the volume of music output, as shown in figure 1.
Echo. Engine rotation
2. treble) bass)
12dB+ 12dB， 1dB4kHz
200 Hz
3.BALANCELCD"R0% "，
Lcd "L0%",
" LR 100% "
By adjusting the treble (and bass (. ), you can modify the frequency response characteristics of the music part.
Curve. Adjust the range-~ step is. The default lifting frequency of treble is,
The default bass boost frequency is.
Adjust the output balance (). Rotate counterclockwise until the correct channel is displayed.
The output is the smallest. Rotate it clockwise until the display indicates that the left channel output is minimum.
This means that the outputs of the left and right channels are the same, as shown in Figure 2.
one
Figure ii
1
Music volume: 80%
Echo. Version 1
Balance: LR 100%
#3
4. Set the tone sandhi state of music through the tone sandhi key on the remote control, as shown in Figure 2.
Introduction to operation
Second, the microphone part.
1.
MICMASTER)
(effects master)
Connect the microphone to the input jack and adjust the corresponding input potentiometer knob to the appropriate position.
Then turn the main volume (knob) of the microphone to adjust the output volume of the microphone. Rotation effect
The volume knob adjusts the volume of the effect, as shown in Figure 3.
III (Microphone Volume and Effect Volume Diagram)
2.
LCD "ECHO55" ... "Echo 85" "
"
Liquid crystal display "REV55" ... 85th edition
Liquid crystal display "Echo & ampREV"
Choose a singing effect. Rotate the proportional digital potentiometer to adjust the effect mode. When rotating counterclockwise,
Increase the proportional component of the echo, and the screen displays%% until it is pure.
The effect mode of echo, in which the effect ratio of reverberation is zero and increases when rotating clockwise.
The proportion of reverberation, the screen will display%% until it reaches pure reverberation.
When the echo ratio is zero, when the echo and reverberation ratio are equal,
The mode will be displayed on the screen as shown in Figure 3.
Schematic diagram of effect scale mode
3. Delay) Repeat),
Speed), low pass)
0 1200
0 100
) 8.0 16.0) kHz
"liquid crystal display" echo
"liquid crystal display" REV
""
""
Adjust the effect parameters, including echo time (,echo depth (reverberation time).
(reverberation front low pass (parameter adjustment. Rotating echo time, echo depth,
Adjust the echo effect parameters in the effect ratio, and the adjustment ranges are (~) milliseconds and depth respectively.
(~)%. Rotate the reverberation time, and adjust the effect ratio of reverberation effect parameters in reverberation pre-lowpass, where
The adjustment range is seconds and low pass (~), as shown in Figure 4.
Note: when the effect scale mode is pure echo, that is, screen display, reverberation time,
The low-pass parameter adjustment before reverberation is invalid, because the current effect does not contain reverberation components. Similarly,
When the effect scale mode is pure reverberation, it is displayed on the screen. At this time, the echo time is back.
The adjustment of sound depth parameters is invalid, because when the effect does not contain echo components, except pure echo and
All parameters of reverberation and echo can be adjusted in other mixing modes except pure reverberation mode.
(~0.06.0
Echo. Echo. Version 1
Effect volume: 50%
mix
Echolev
Echo. Engine rotation
Echo 80%
Echo 20%
echo
REV80%
REV20%
Engine rotation
MICVOL:30%
Introduction to operation
Figure 4 (schematic diagram of effect parameters)
Echo effect parameter reverberation effect parameter
4.
personal computer
(6DB+6DB)100Hz
400Hz 1.00kHz
4.00 khz
Microphone equalization adjustment. Microphone equalization is mainly used to modify the timbre of singing voice. By chan that low,
The frequency response curves of middle-low, middle-high and high segments make the singer's voice beautiful and expressive. The panel can adjust the low frequency.
Low frequency and high frequency, the software can adjust low frequency, low frequency and high frequency, high frequency. The adjustment quota of each paragraph is balanced.
The situations are-~ respectively, in which the default lifting frequency of low frequency band is, and the default lifting frequency of middle and low frequency band is.
The lifting frequency is, and the default lifting frequency of middle and high frequency bands is, and the default lifting frequency of high frequency bands is.
As shown in fig. 5.
Figure 5 (schematic diagram of microphone equalization)
5. Microphone automatic feedback suppression. When a singer sings into a microphone, he often screams.
This phenomenon often annoys the listener and even damages the speaker in serious cases. You can press the one with the mechanical lock at this time.
Feedback suppression function key, howling will be automatically eliminated, effectively protecting the speaker. When the key lock pops open,
The feedback suppression function of the microphone is cancelled, as shown in Figure 6.
VI (schematic diagram of microphone feedback suppression)
Feedback suppression on icon Feedback suppression off icon
Echo. Version 1
Echo time: 200ms
Echo. Version 1
Echo depth: 100%
Echo. Version 1
Rotational speed: 2.0 seconds
Echo. Version 1
REVLPF: 16.0kHz
Echo. Version 1
H_EQGAIN:+6dB
Echo. Version 1
M_EQGAIN:-5dB
Echo. Version 1
L_EQGAIN:+2dB
Echo. Version 1
MICVOL:30%
Echo. Version 1
MICVOL:30%
Introduction to operation
6.
3 LCD monitor
""
liquid-crystal display
""
Locking function. The subwoofer key is a multi-function key, and the normal operation is to switch the subwoofer parameters.
In other words, when it is pressed for more than two seconds, it performs the function of locking operation. The screen will prompt for the password.
Code operation. At this point, you can set the passwords for the rotation effect volume, microphone volume, subwoofer volume and music volume respectively.
Character, press the key for a long time after input, and the screen will prompt you to enter another one.
Confirm the second password, repeat the above operation, and then press the key for a long time to lock the system operation. this
There is a lock icon in the lower right corner, as shown in Figure 6. When you repeat the above steps again, you can do so.
When the key is pressed, the unlocking operation is performed, and the operation steps are the same as before. After execution, it is located in the lower right of the screen.
The lock icon will disappear as shown in Figure 7.
"Submarine. FMASTER "
four
"Submarine. FMASTER "LCD
"Submarine. FMASTER "
liquid-crystal display
VII (lock diagram)
Lock icon unlock icon
Ming: After the locking operation, the system will set the locking option according to the current settings (this parameter is in the computer software
Set in), locking the functions of all parts of the system, including the volume of music and microphone, and
Parameters, etc. Please refer to the help and guidance of computer software for details.
ECHO 1
MICVOL:30%
ECHO 1
MICVOL:30%
[ ]
Enter password
[ ]
Confirm password
EffectmasterMicMasterSub。 virtuoso
LOCKINGUNIT
Corresponding password character input knob
Password input menu
Password input confirmation menu
Introduction to operation
Third, the subwoofer part.
1. "Submarine. FMASTER "subwoofer knob is used to adjust the parameters of subwoofer, and press the button continuously at the same time.
It will switch between different parameters of the subwoofer, which usually has two parameters, volume and frequency division, as shown in the figure.
Seven performances.
VII (Schematic diagram of subwoofer parameters)
Subwoofer volume Subwoofer frequency division
1ECHO 1
Subvolume: 40%
2. "submarine. "FMASTER" includes the following two parameters under the subwoofer key menu, as shown in the figure.
Super bass volume when singing, super bass volume when disco.
echo
DISCSUB:30%
ECHO 1
Singapore: 20%
Singing mode indication disco mode indication
echo
MICVOL:30%
echo
MICVOL:30%
In singing mode, the subwoofer automatically changes to disco mode, and the subwoofer automatically changes to .20% .30%.
nine
Secondary frequency: 300 Hz
echo
1
1 1
This machine is equipped with automatic locking function. After starting, the small encoder will not be adjusted within one minute, and the encoder will automatically lock.
After locking, the small encoder cannot rotate. Press the ""key to unlock it, but the encoder can rotate.
If you don't need this function, you can cancel the automatic locking in the menu of computer control software and equipment. After the system is reset, it will automatically lock.
The dynamic locking function is effective.
,
，SUB。 FMASTER
Music delay: 2ms
Music delay
Introduction to operation
Fourth, wireless remote control.
The easy-to-use remote control function eliminates manual operation. Simple parameter adjustment enables you to make adjustments easily and quickly.
Same parameter setting. As shown in the figure below.
Timetable (remote control code) 1
#
Effect music
0 1, iron
003038
6808
C080
7840A0
58
User code:
48
Subwoofer
+
F8
-
90
b
Attachment:
Computer communication line
CD of product software
Industrial standard for serial communication connection
reset
Effect level adjustment
Microphone volume adjustment
1234
5678
Music volume adjustment
Tone modulation control
Subwoofer volume adjustment
technical condition
technical condition
() 95 decibels
()0.0 1%
220 volt alternating current
T3 15mAL/250V~
AC 220 V /50 Hz
10W
3.5 kg
45482170mm
Music part
Signal to noise ratio is greater than
deformed
Amplitude-frequency response of recording and playback
Power?Supply?
mix together
Standard power supply
Power consumption
gross/package/rough weight
measure
Signal Noise Ratio (SNR)
Threaded (short for threaded)
(,)
20Hz-20kHz
20 Hz -20 kHz 0.5 dB
/0.707V/47Kohm
8 VPP/60 ohms
(/)(4) 12dB 1dB
(/)() 12dB 1dB
7, 100
BGM - +3dB
DVD - +3dB
Auxiliary-+3dB
/1 VPP/750 ohms
/1 VPP/750 ohms
() 0.07% 20 Hz -200 Hz
0Hz-200Hz0.5dB
() 80 dB ()
()0.04%50Hz- 16kHz()
50hz-16khz 0.5db
/100 mv -500 mv /4.7 kω
7Vpp
100 Hz to 400 Hz (6dB 1dB)
500 Hz -2 kHz (6dB 1dB)
2 khz to 4 khz (6dB 1dB)
15.
RS2329
Direct tone modulation off
Input sensitivity impedance
Maximum output balanced output
The treble has increased and decreased, and the pace.
Bass enhancement and attenuation, pace
Tone modulation step size
Level adjustment of three stereo audio inputs
∞
∞
Video:
Three video inputs and one video output.
Input sensitivity impedance
Output sensitivity impedance
deformed
Amplitude-frequency response of recording and playback
Microphone part
The signal-to-noise ratio is greater than the effect opening.
Distortion effect off
Amplitude-frequency response of recording and playback
Input sensitivity impedance
maximum output
balanced
Low step distance
Medium, pace
Height, pace
Three microphone inputs
Remote control cable, core socket
Interface core socket
kilohertz (kHz)
200 Hz
Subwoofer
Threaded (short for threaded)
Signal Noise Ratio (SNR)
Threaded (short for threaded)
emotional quotient (EQ)
emotional quotient (EQ)
emotional quotient (EQ)
××