Need to pay attention to the use of Yude YDIT professional mixer

Source:YDIT 誉德 Release time:2019/6/24 15:40:43 Views:911

 

1. The problem that the signal input part of the mixer (paperless conference system) needs attention: The input signal has been roughly divided into low resistance and high resistance input, but how to define whether a certain signal is low resistance or high resistance Need to be flexible. For example, according to the standard, electronic keyboards, electric guitars, etc. are high-resistance signals. It is only necessary to input the 6.35 plug to the mixer (paperless conference system), but there are some places from the stage to the mixer (paperless conference system). The connection line is too long, the line resistance is large, and the system noise such as lighting makes the noise floor of this signal line already large, even if no source signal is input, in the mixer (paperless conference) System)) The gain of the input channel of this line will have a large noise, as described above: this line is a river, and now there is too much sediment in this river, which is this The noise in the line is still unchangeable, and the volume of the instrument on the line has been opened to a large extent and can no longer be increased. That is, the river can only give you so much water, so what should I do? If the input with high-resistance signal is equal to the increase of water in the river, the water quality can't be changed, and the sound quality can't be changed. If you use the cassette plug to input the signal from the low-resistance jack, a little shallow water in the river will pass through the low-impedance amplifier. Zoom in, so the water is deep, the water quality is good, and the sound quality is good. It doesn't seem to be true, everyone can try it. I have done a lot of projects now, the bands are all from the low-impedance input using the card interface, although the surface looks irregular, but it is actually a good way to reduce the band noise. Therefore, audio workers need to be flexible, need to seek truth from facts, and find good working methods in practice.  
2: AUX part needs to pay attention to the problem: We know that AUX has pre/post conversion of the fader. The standard requires that the monitor signal should be sent before the fader, but in the performance, the fader is usually used. Send it better. Take the AUX signal as a stage monitor as an example: we use AB two CD players to play music in turn. When the A music is finished, we can pull down the fader volume to turn off the sound, and then turn the volume of the road B. The fader is pushed up. But at this time, the A CD player has not had time to play the disc, and it is still playing. At this time, if the AUX signal sent by the fader is used, there will be no sound of the A CD in the stage speaker, but if it is adopted The AUX signal sent before the fader, the stage speaker will still send the sound of the A CD, so that the stage speaker will have the sound of two CD players, A, B, the singer can't listen, although this time The main volume outside is not affected. Therefore, even if it is the AUX auxiliary transmission part, we must carefully adjust. 5 c1 G, C0 H 
3: Group allocation problem: The problem to be noted in the grouping is relatively simple, because the volume of all groupings can be output separately without switching to the master volume, so we need to be careful in the grouping. For example, we use 5-6 grouping to control the volume of the bass. The group 5-6 of most input channels on the mixer (paperless conference system) can be pressed down, but if it is a microphone channel, it should be cautious, otherwise Pressing the 5-6 group of the microphone channel will produce bass feedback; another point is that since the 5-6 group has independently output the signal from the corresponding output port, it is no longer necessary to pass the mixer (no paper) The total volume of the conference system is output, that is, the switch of 5-6 group to the mixer (paperless conference system) total volume can not be pressed. $ u7 L5 p6 v8 E4 p( O8 D+ k 
4: Phantom Power: Most consoles (paperless conferencing systems) have a 48 volt phantom power supply that can be used to push multiple capacitors Microphone, but since it is the current transmitted from the microphone line, it is necessary to check the microphone line frequently to ensure that the line is unblocked, otherwise a large current impact sound will be emitted when the line contact is not good. Another phenomenon is: if in one When you use a conference condenser microphone with a battery in the mixer (paperless conference system), don't turn on the phantom power again, otherwise the two will interfere with each other and it will emit a rainy "sand" sound. ;
5: Recording input: The recording input channel of most mixers (paperless conference system) is simply controlled and output directly through the mixer (paperless conference system), so be careful Operation, do not cause erroneous operation, suddenly release the sound of the recording channel from the master volume of the mixer (paperless conference system).
6: Output level: We know that the standard level of the recording is 0dB, but Actually in the performance A lot, even reaching +10 dB, so don't be shocked when you look at the red light. In fact, in actual use, the signal level is slightly over-standard is reasonable, then the sound effect is also the best. There is also a It should be noted that when the peak level indicator reaches +4dB, the volume level of the rear and its corresponding output port reaches 0.775V of 0dB. 
7: Other function buttons: In addition to the important adjustment knob In addition, there are many function knobs, buttons or switches on the mixer (paperless conference system), such as: positive and negative conversion button, high cut or low cut button, fader before and after switch button, mute button, monitor button, etc. Etc., some of us often use skilled, not often used to understand their basic functions, do not often adjust them, so as not to cause misuse. 
8: earphones and live effects: a lot of sound engineers I always like to keep tuning with headphones. Of course, the headphones are very important, but the sound in the headphones is very different from the sound on the spot. So I have to go to the scene to listen. Don’t be unrealistic. As a measure of wishful thinking, you should know that headphones can be used as a standard when recording. In the live performance, headphones are just a tool, and the standard is our ears. You can go to the scene to listen. Y9 m( V! P3 d+ Q# t: t! w- L 9 z3 E0 u; m0 P 

There are a lot of scattered and scattered books. Basically, I have been using the mixer (paperless conference system) for 13 years. It is also my hard work. This article does not focus on the mixer (paperless conference system). The detailed function of each point is only focused on some aspects that are more important or often confused. Because of the limited level, it is inevitable that there are deficiencies. I hope that all the peers and experts will correct me! L/ |) V1 G3 u ]- l Finally, I want to say that the Chinese are so conservative! In the past, the martial arts apprentices had to keep one hand, and with the eagle claws, they became chicken claws. The dragon screamed and the snakes smashed. The tiger step changed into a cat… Compared with developed countries, China’s audio level is still relatively backward. Therefore, I sincerely hope that all of you will not hide privately and teach some good apprentices. I also hope that all audio workers will work together to contribute to the improvement of the sound level of our country's tuner!