Support multiple mode switching as follows red LED video display

2023 New 2U Digital Spectrum Analyzer LED Display Balanced Music Audio Remote Control Voice Control Online Indicator

Music Spectrum Analyzer (Pro) The music spectrum analyzer is a professional audio analysis device, which analyzes the different audio frequencies in the audio The lower component is analyzed into loudness data by Fourier algorithm and displayed in the corresponding position. The frequency response is 20-20KHz, the resolution resolution is 30 levels, and the ARM-CortexM4 processor is used to control Using touch or remote control, it can display various modes and apply to different audio processing and display occasions

Basic parameters:

●Power supply voltage: AC100-240V
●Maximum current: 0.2A
●Frequency Response: 20Hz-20KHz
●Sensitivity: >-40dB (94dB SPL @1KHz)
●Dimensions: 430*88*135 mm (excluding rack ears)
●Weight: 2000g
●Channel: dual channel

●The main function:
Stereo audio input or voice-activated pickup
14 modes touch or remote switch
built-in clock;
Can learn environmental noise and calculate display threshold;
Brightness/speed/gain adjustable
2 smooth modes;
sleep mode;
automatic gain control;

Features:

●Sterec audio input or built-in microphone
●Touch or remote control to switch modes
●A built-in clock
●Intelligent environmental noise cancellation
●Brightness/ speed/gain adjustable
●Smooth display
●Silent auto sleep
●Automatic gain control

Instructions:

boot up -
Plug in the power cord and turn on the back switch to turn it on immediately;
Shut down -
The power button of the remote control can enter standby, and press it again to turn on immediately;
If sleep is set, it will automatically enter the time display after 6s of silence is detected, and the display will resume when there is a sound.
Adjust the parameters -
1. Touch the Menu key or the Menu key of the remote control to select a menu item
2. VOL+/VOL- key adjustment options
3. Press the > button on the remote control to cancel the menu or wait for 5 seconds, the menu will disappear automatically
Sensitivity -
During normal use, press VOL+/VOL- key to increase or decrease the sensitivity, range: 0-19;
The adjustable potentiometer on the back of the fuselage can adjust the pickup sensitivity, which is only valid for the voice-activated pickup input, and
and not controlled by AGC;
Adjustment time--
1. Enter time display mode (MODE: 13)
2. VOL- key to select the position, VOL+ key to select the number, it will be saved immediately after adjustment

Menu description:

MODE—— -Display mode selection, starting from 0:

0: Ordinary spectrum, two channels are mixed.
1: On the basis of mode 0, the peak recording point is added to the top, and the acceleration decreases after a delay;
2: The ordinary spectrum is equally divided screen, and the two channels independent display;
3: On the basis of 2, the peak recording point is added, and the acceleration decreases after the delay, similar to mode l;
4: Similar to 2, but thethe base line is the center horizontal line;
5: Similar to 3, but the the base line is the center horizontal line;
6: Similar to 5, but only shows peak points;
7: Waterfall chart with frequency on the x-axis and time on the y-axis;
8: Waveform, binaural mix, x-axis is time. y-axis is amplitude, bottom I row is real-time amplitude;
9: Similar to 8, the base line is the bottom;
10: Similar to 8, the upper and lower two channels are displayed separately;
11: Level indicator, displayed horizontally from the center to the sides;
12: Similar to 11, with added peak point;
13: Clock mode, 2 channel levels are shown at the bottom;

SPEED--Speed setting, 0-4 affects the falling speed of the floating point from slow to fast, the horizontal movementspeed, etc.

DIMMEF—— -Brightness selectior, five levels of brightness from 0 to 4;

GAIN——Gain setting, range: 0-19 The gain is gradually increasec;

SMOOTH—— Smoothin setting, 0: no smoothin; 1: linea r smoothi; 2 quadratic function fitting

LEARN——Noise learning settings, press VOL+ to enter the noise learning mode, and the bottom displayA horizontal line, any sound produced in this process will be sampled as noise and saved. This part of the sound will be filtered out during actual display. After about 30 seconds, the sampling will end and the display will return to normal. and restore GAIN to 0;

DEMO——Demo mode, after a few seconds of each mode demonstration, it will automatically switch to the next mode, "0" is off, "1" is on;

MIC——Whether to turn on the pickup, "0" is off, "1" is on;

AGC- Automatic Gain Control, 0: Disablec; 1: Enablec; AGC can Provide negative feedback of gain to the input terminal according to the magnitude of the display amplitude, the feedback period is about 5s, in order to automatically adjust the display amplitude in the appropriate range;

SLEER—— -Sleep setting; 0: no sleep; 1: mute automatic display clock;

FACTORY1: All parametertrese to factory settings, including noise data.

Shipping list:

Digital spectrum analyzer × 1;
cable × 1;
Mounting bracket*1 pair
Mounting screws*4
Instruction manual × 1;

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Option Description:

MODE——Display mode selection, starting from 0 as follows:
0: Normal spectrum, the two channels are mixed, and the frequency is displayed in order from 20Hz to 20KHz;
1: On the basis of mode 0, the peak recording point is added to the top, and the acceleration decreases after a delay;
2: The common frequency spectrum is equally divided up and down, and the upper and lower two channels are displayed separately;
On the basis of 3:2, the peak recording point is added, and the acceleration decreases after the delay, similar to mode 1;
4: Similar to 2, but the reference point is the center horizontal line;
5: Similar to 3, but the reference point is the center horizontal line;
6: Similar to 5, but only the peak point is displayed;
7: Waterfall chart, x-axis is frequency, y-axis is time;
8: Waveform graph, two-channel mixing, the x-axis is time, the y-axis is amplitude, and the bottom 1 is the real-time amplitude;
9: Similar to 8, the base line is the bottom;
10: Similar to 8, the upper and lower two channels are displayed separately;
11: Level indicator, the middle is displayed horizontally to both sides;
12: Similar to 11, with the addition of the peak point;
13: Clock mode, bottom two-channel display level;
SPEED——speed setting, 0-4 affects the speed of floating point falling from slow to fast, horizontal movement
speed, etc.;
DIMMER——Brightness selection, there are five levels of brightness from 0 to 4;
GAIN——Gain setting, range: 0-19 Gain gradually increases, default value: 0;
SMOOTH——smooth setting, 0: not smooth; 1: linear smooth; 2: quadratic function fitting
LEARN——Noise learning setting, press VOL+ to enter the noise learning mode, at this time the bottom display
A horizontal line, any sound made during this process will be sampled as noise, saved, and the actual
This part of the sound will be filtered out during display, and the sampling will end after about 30 seconds, and the display will return to normal.
GAIN=0;
DEMO - demo mode, each mode automatically switches to the next mode after a few seconds of demonstration;
MIC——Whether the pickup is turned on, 0: off; 1: on;
AGC——Whether to enable automatic gain control, 0: off; 1: on; automatic gain control can
Provide negative feedback of gain to the input terminal according to the magnitude of the displayed amplitude, the feedback period is about 5s, so as to automatically adjust
The whole display range is in the appropriate range;
SLEEP——sleep setting; 0: no sleep; 1: mute automatically display the clock;
FACTORY——1: All parameters are restored to factory settings, including noise data.

Precautions:

1. Do not connect to a power supply higher than 240v, so as not to damage the motherboard, please use the power cord certified by the relevant agency;
2. Do not immerse in water, or use in conditions with humidity higher than 90%;
3. Do not use any solvent or liquid other than anhydrous alcohol to wipe the screen;
4. Non-professionals should not disassemble by themselves, and product failures caused by non-quality problems are not covered by the warranty;
5. Please place it out of the reach of children 6 years old and below;
6. Subsequent changes and new functions will be added without prior notice;