Liu Ruihua and Cai Zhuoyan were playing and adjusting all the recording equipment.

At this time, Zhou Huijie and Lao Ba bought the materials and came back.

"How about Ruihua, look at what I bought, right?" Zhou Huijie said to Liu Ruihua a little proudly.

Liu Ruihua stepped forward to look at each material, and then exclaimed: "Okay! It's exactly what I want, and the quantity is right. Well, bring in the following materials, and then build a temporary shed with wooden frames and planks, and bring in the operating table and the big swivel chair."

Zhou Huijie looked at the list, nodded and said, "Okay, eighth, let's call people to do it!"

The eighth child immediately smiled and organized the staff to work.

Zhou Huijie said: "Ruihua, where is the simple recording studio built?"

Liu Ruihua pointed to a corner and said, "That corner! It is better to build sound around it, and it is more conducive to sound diffusion."

Zhou Huijie was puzzled and asked, "What's the sound...... What does it mean?"

Liu Ruihua touched his head and said, "This ...... It's a technical term, it's the knowledge of building sound, and it refers to architectural acoustics."

Cai Zhuoyan stepped forward at this time and said: "Jiansheng? I know a little bit. The broadcast studio and recording studio of our TV station have been strictly designed with architectural acoustics. But I can't say the specific aspects. Can you briefly explain it?"

Liu Ruihua said: "Jiansheng, let's put it this way -- there are certain characteristics of sound propagation in the room, there are sound sources, direct sounds, early reflection sounds, reverberation sounds, etc. Generally speaking, the exterior decoration in the room should not be too smooth and too hard! Because then the sound must be very poor."

Cai Zhuoyan was puzzled: "Why?"

Liu Ruihua explained: "The principle is too complicated. For example, we are in the bathroom, and the sound has an echo, right? Why? This is because the walls in the bathroom are very smooth, and the sound is not well absorbed after radiating to these walls, so it directly radiates out again.

But when people listen to this kind of sound, they feel that there is a degree of integration and moisture, and some people prefer this kind of sound."

Zhou Huijie suddenly realized: "Oh, I know! The room is too smooth, the sound field is very poor? So, the lobby and private rooms of the nightclub are all made of soft packaging, isn't it?

Liu Ruihua exclaimed: "Yes, it is worthy of an IQ as high as 250! Yes, nightclubs must use a little more flexible packaging, so that the sound field is better.

So, therefore, if you want to make the building acoustics reasonable, you have to go through scientific calculations! Good building sound must have good diffusion and good sound absorption."

"Huh, it's so complicated? Ruihua, can you teach me this?" Zhou Huijie hesitated.

Liu Ruihua rolled his eyes and said: "Such a complicated thing, how can you learn it in a while? Okay, you can watch what I do in the future, and if you don't understand it, you can ask, how much you can learn depends on your IQ and understanding."

Zhou Huijie smiled and said, "Okay, according to my IQ, I can't learn it."

Liu Ruihua smiled and commanded the staff to work.

After a busy period of work, a very rudimentary recording studio was set up.

Liu Ruihua said a little excitedly: "Okay, now you can set up the equipment! These are the world's top musical instruments and recording equipment, we will come by ourselves, don't worry about letting those rough people get it."

"Okay, how many people do you need to say!" At this time, Yun Jingchu had already brought her students here, and people were not a problem.

Liu Ruihua said: "Zhou Huijie, Yun Jingchu, Wu Xiaoxia, Xiaoting, a few of us will do it! Cai Zhuoyan is a big reporter, and she has done a lot of work just now, so let her take a break."

Cai Zhuoyan snorted: "I'm not tired, I'm here too!" Cai Zhuoyan is sweet in her heart now, Liu Ruihua really cares about her.

Liu Ruihua smiled: "Okay, then act!"

Next, Liu Ruihua put his coat and glasses aside and began to fiddle with the equipment.

Outside, a thick red carpet was laid out, and musical instruments were placed on the carpet one by one.

The students of the art school were thrilled to see the top musical instruments in front of them, and each of them knew how advanced these instruments were! This was definitely the good thing they dreamed of, and they would not change it for a prince charming.

Liu Ruihua saw the female students of the art school looking at the musical instruments with blue light in their eyes, so he said loudly: "Hey, what are you doing? Is it okay to have a little bit of interest? First connect the electricity, find out the monitor speaker of the instrument, and then set up the microphone!"

Seeing that the students were holding the microphone and didn't know how to put it next to the drum kit, Liu Ruihua said helplessly: "I'll come!"

Yun Jingchu smiled bitterly: "Ruihua, they just know how to play drums, they can't answer the microphone.

Liu Ruihua explained: "Thin does not mean bad! These are all broadcast-grade microphone cables, which can efficiently filter out noise."

Yun Jingchu nodded, and said, "We haven't seen this evil tube either."

Liu Ruihua said: "This evil microphone is the most advanced in the world, you must not know. You see, this slender microphone belongs to the condenser microphone, this kind of microphone needs to work live, and needs to provide a 48V phantom power supply in the mixer. The recording quality of this microphone is quite good, the sensitivity is extremely high, the dynamic range is very large, and it can be used on the snare drum."

Yun Jingchu pointed to a round microphone and said, "This...... What is this. [,!]?

Liu Ruihua laughed and said: "What kind of landmine? This is a large-diaphragm dynamic microphone! The sound coming out of this microphone is very warm and rich, and it can be used to record bass drums. Of course, radio hosts can also use this, because the sound coming out of this kind of microphone is very warm and magnetic, and it can capture the hearts of listeners."

Zhou Huijie interjected: "I see? I said, why are the voices of those radio hosts so warm and moving? It turns out that it all depends on advanced equipment!"

Liu Ruihua said with a smile: "It can't all depend on the equipment. If the radio host's voice is not good, you will be useless with any equipment! Okay, start the installation, and hand me the microphone cable...... This should be placed one by one with a microphone stand......"

Under the command and arrangement of Liu Ruihua, a professional band system, recording system, and sound reinforcement system were quickly installed!

Liu Ruihua looked at a group of excited beauties and said, "Don't be excited! You are not qualified to use these instruments now. Next, I want to listen to your singing level. Your voice and singing voice are the first level of today's exam, do you know?"

"Ah, voice, singing, hehe, Xiaoting, you are so beautiful and good at singing, you will definitely get a high score!"

"Wu Xiaoxia is more beautiful, so the score should be higher!"

"No, no, it's beautiful, plain and temperamental, it's our teacher Yun Jingchu, if she wants to take the exam, she will definitely get the highest score!"

Next, the girls from the art school chattered.

Liu Ruihua couldn't bear it anymore and said: "Stop, don't argue, I'll tell you - wait a minute, I'll turn my back on you, I only listen to your voice, I can't see your looks! At the same time, I don't know your names, because there are only 1-35 code names here!"

"Ahh......h That's fair!" Some female voices who were not confident in their looks cheered. Actually, there were no ugly girls among the 35 girls. Just kidding, how could a girl in an art school have dinosaurs?

Liu Ruihua looked at the bouncing female students and said loudly: "Be quiet! Yun Jingchu, start issuing code names!"

Yun Jingchu nodded and shouted: "Come here! There are 35 code names here, and each of you will come and draw a code name. Remember, everyone's code name must be kept secret from Tutor Liu Ruihua! Otherwise, you will be disqualified from the exam!"

"Wow, so strict? Hehe, hurry up and touch the codename!"

Next, the female voice of the art school rushed up, grabbed the code name, and prepared to be tested by Liu Ruihua's tutor!

…………

ps:Students who have a sound at home,After reading this chapter, you know how to arrange the sound field, right? In front of the speaker, it is best to make a thick sofa to absorb sound; Thick curtains should be drawn when singing; Conditional carpeting...... If you have more professional needs, please send a book review!