1 in 4 out VU2 music level meter DB meter analog VU meter audio switcher

Description

1 in 4 out VU2 music level meter DB meter analog VU meter audio switcher
Description
Function:
Product parameters:
Size: 28 length * 12 width * 9 height CM
VU meter audio input mode: support stereo RCA or microphone pickup mode.
Audio output: 4 stereo RCA
Working voltage: Micro USB, DC 5V 0.5A (VU2-D), DC 5V 1.5A (VU2-L)
Backlight filament voltage: DC / AC 6-12V 100mA (only for VU2-L bulb models)
Backlight filament current: 10mA (only for VU2-D models)
Remote control function: support.
Switcher working mode: 1 in 4 out or 4 in 1 out
Pointer sensitivity adjustment: support manual quick adjustment
Gain adjustment: Support manual quick adjustment.
Gain mode: DB or ACG. (Note: DB is generally used for recording occasions, ACG is used for most common occasions)
Dynamic acceleration, deceleration damping mode: support
Switch function: support
Set power-off save: support
After the first VU1 level meter went on the market, I received feedback from many buyers. Most of the opinions were that the VU1 header size was too small. It is strongly recommended to have a large meter header. So, according to the good suggestions of these enthusiastic buyers, After more than 3 months of new design and development in our store, VU2 is finally on the shelves.
VU2 has more functions. Novices may feel a little overwhelmed. By default, this machine has set the mode to the most commonly used mode. Buyers only need to turn the DELAY and GAIN knobs to their favorite beating speed.
VU2 is a multifunctional VU level meter, which integrates the functions of 4-channel audio switcher + double large VU meter head level meter, which can meet the needs of most buyers. With the development of the times today, I believe that most buyers' audio equipment generally has at least two audio sources: such as computers, mobile phones, professional DACs, digital turntables, and so on. Many of these devices have a few of them. If a VU meter has only one input, it is very inconvenient to change the audio source. Therefore, VU2 adds a 4-channel audio switcher on this basis, and buyers can easily connect to multiple audio sources to share a set of large VU level meters to display the music bounce effect. It is no longer necessary to re-plug and unplug cables, which is very convenient to manage your audio system. It also supports remote control options, which is simply a gospel for lazy people.
In addition to the basic single channel switching function, the function of the 4-channel audio switcher (that is, only one channel can work at the same time), it also supports the simultaneous working mode of all channels: that is, 4 passes can work in parallel at the same time, if you input 4 at the same time Channel audio signal, (4 in 1 out mode) then 4 channels of signals can be set to output to the I/O channel at the same time to achieve the purpose of mixing. If it is (1 in 4) out, then it is possible to output an audio signal to multiple devices at the same time, such as it is often used in recording or monitoring. The I/O port is connected to the player, and the other 4 groups of signals are output to each device at the same time, one group is input to the computer for recording, one group is output to the amp, and the other group is output to the monitor speakers. The setting method is also simple, just press and hold the key of the channel that needs to work at the same time for 2 seconds until the light of the channel lights up. For which channels are needed to work at the same time, press the button of which channel respectively.
Note here: It is only recommended to use the parallel output function when 1 input and 4 output. That is, connect 1 player and connect 4 different outputs. (It is not recommended to use the parallel function when 4 input and 1 output. This may cause the sound to be distorted.)
All input and output interfaces are all copper and long gold-plated RCA interfaces, which have excellent electrical performance, large contact area, and minimal signal loss. Uncommon RCA interfaces are comparable. Buyers can compare after receiving the goods. Good materials can guarantee the quality. Sound quality.
The main point of the painting: in order to maximize the potential of the VU meter. In the design of this machine, the owner’s original dynamic acceleration and deceleration damping modes have been specially added, which can make the pointer beating better. In addition, the most commonly used and most practical functions are directly designed in front of the panel, so that everyone can quickly set to the best working state. These functions are:
DELAY (used to set the speed of the pointer jumping, you can adjust it to an appropriate speed according to the speed of the music. It will be better visually. Tips: slow down the music with slow rhythm, and adjust the rhythm faster. All settings are Real-time display, and the reference signal is the input audio signal, please be sure to input music when adjusting.)
GAIN (used to set the gain of the input signal. In particular, this GAIN setting is not used to adjust the audio through the resistance attenuation of the input signal with a potentiometer. This method will affect the audio source somewhat. It is adjusted by the internal digital adjustment of the microcontroller. Yes. GAIN's potentiometer has no physical contact with the input audio signal. So the effect on the audio signal is 0, which belongs to the digital gain. Through this GAIN knob, you can set the pointer jumping range. If the input signal is too small, you can increase it appropriately. If the signal is too large, you can also reduce it appropriately. In short, you can set the meter pointer in an optimal range. In addition, for some friends who need to record, you can also set your own 0dB position. It is convenient for monitoring. Recording volume)
VU meter function keys:
Click -> select the VU meter audio input method, there are two types: microphone pickup / LINE IN, the buyer may choose the best method according to the actual situation. It is recommended to use the LINE IN method if accurate display is required. This display is the most direct and true. If it is not convenient to connect the line, you can choose MIC mode.
Double-click -> select the gain mode as DB or ACG, the difference between the two is explained in detail in the figure below. It is recommended that ordinary users choose ACG, which has the best beating effect. If you need to use it in a recording studio or special occasions, you can choose DB.
Turn on/off the dynamic damping mode:
It can only be set by the remote control. The method is as follows: first press the "MUTE" button of the remote control, and then press the "ACG/DB" button. At this time, the ACG/DB LED will flash once to indicate that this function is turned on or off. When setting, music is playing at the same time, and the DELAY and GAIN knobs are turned to at least 50%, you can clearly distinguish the difference between the two modes from the music swing rhythm. After selecting the mode, press "MUTE" to exit the setting.
In addition, in order to cater for the needs of various fans, VU2 also provides two model options:
VU2-D (black background head + LED white backlight) is a fashionable model, and many famous phones currently use this white light and black background.
VU2-L (white background head + tungsten bulb orange backlight) classic style, the most popular style in the 80s and 90s. Nostalgic friends can choose this style
This machine is powered by the USB interface, which is convenient to get power. It can be connected to any USB charger. The USB only supplies power to the driver board and has no interference to the audio input and output circuits. The functions of the VU meter and the 4-way switch are independently controlled. The VU meter only reads the signal from the switcher's I/O port, as far as possible to ensure that the sound quality is not affected
Mute function: support (Note, if the switch is working in 1 in 4 out, the meter will keep beating in silent mode, and in 4 in 1 out mode, the meter will stop when silent.)
ACG and DB mode description:
1. In ACG mode, the VU meter is driven by an exponential compression algorithm, which means that the relationship between input volume and pointer swing is not proportional. It can be seen from the relationship diagram that when the input volume is small, the swing range of the pointer is larger, and when the volume gradually increases, the swing range of the pointer gradually becomes smaller. In this mode, the user can use the VU meter in a larger audio input range without adjusting the gain, and can obtain a good display effect at the same time. When the pointer jumps with the music, even if the volume input is too small, the pointer will jump, even if the volume input is large, it will not reach the maximum swing. It is recommended to adjust GAIN so that the pointer swings around 0dB as much as possible.
Because it uses an exponential compression algorithm to drive the pointer, it cannot truly display the current DB level of the input volume, which is not suitable for professional recording occasions. But this mode is suitable for people's regular hearing habits. Because the human ear hears the sound and the loudness of the sound has a ratio, not 1:1. For example: a 20W speaker and another 100W speaker, their power ratio is 5 times, if the meter actually jumps. That is, there should be 5 times the angle change. But the human ear does not sound like this, people only feel that the sound is only about 2 times different in loudness. That is, the sound of the 100W speaker seems to be only about 2 times louder than the 20W speaker (meaning that the 100W speaker is only 40W, which is not the case). This is the actual difference, so in this case, if the pointer jumps in the range At about 2 times, human vision and hearing can match. Feeling more comfortable. But if it jumps according to the real value. The pointer jumped 5 times the angle, which caused the sensory mismatch, which made it relatively uncomfortable. (Only for some people, not all situations.)
2 In the DB mode, the VU meter pushes the pointer to jump after the standard AD conversion. The data has not undergone any changes and is the most original. So the swing of the pointer is proportional to the input signal. An analogy (not actual test data): If the audio signal input 0.1V pointer swing angle is 10 degrees, then input 0.7V. The pointer will swing 70 degrees. In this mode. The beating of the signal and the pointer is 1:1 true, for some occasions that need to know the real music level, such as the recording studio or testing a certain sound level. You can choose this mode.
Other matters needing attention:
When setting the sensitivity, there must be music input. Otherwise the pointer will not jump. It is impossible to see the actual effect of the current setting value. Double-click and single-click the function key. Operate at the speed you normally use when operating the computer. When you click to select, there will be an appropriate delay, which is designed by the program. This is normal.
When using the microphone to pick up the sound, according to the volume of the speaker or the distance of the VU1 from the speaker. Properly adjust the GAIN knob to get a better beating effect.
It is recommended to use a separate USB charger for power supply instead of the USB on the audio machine. For example, after connecting to the computer audio source, use the computer's USB. It is not recommended to do this, because it is easy to generate common ground noise.
packing list:
1 finished host
1 USB power cord, without power supply
1 remote control
1 copy of the instruction manual:
If you have any questions, please contact us in time, we will help you deal with the problem for the first time.
Shipping
Item will be shipped within 24 -48 hours after full payment is received.
Normally the shippment to worldwide is used to take 15 to 30 business days, exclude Sat & Sun.
Payment
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Payment must be received in 7 business days of auction closing.
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On Jun-06-21 at 19:00:45 PDT, seller added the following information: