Xu Xin'er played with a few girlfriends for a while, and laughed with Chen Chuying and Ye Yuxin for a while, and then she slapped her hands and said: "Okay, sisters, everyone came here from all over the world today, not for fun! We are here to learn! Next, let us welcome Teacher Xiao Lin to teach us a class with warm applause!"

"Oh......"

"Shh......h

"......"

"Cut ......"

Xiao Lin was greeted with various boos. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Xiao Lin smiled bitterly, then rolled his eyes and said, "Be serious, go to class!"

The women were still talking, laughing, and staggering.

"Smack!" Xiao Lin suddenly conjured a gun and fired a shot at the ceiling!

"Ahh

"Damn, it seems that I can't control you without a gun? It's really against you!" Xiao Lin put away the gun, and said to the stunned beauties: "Okay, it's just stage props, you are all movie stars, can't you see it?"

Xiao Lin said this, of course, it was not a prop gun, it was a real knife and a real gun, but it was just an empty cartridge.

"Hey, I'm scared!"

"Hmph, shoot you!"

"Let you scare us!"

"You're going to die!"

A few beauties were annoyed and angry, and couldn't help but fight for a while, but soon quieted down.

Coughing, Xu Xin'er said, "Before you came, we were sorting out these recording and amplification equipment. Well, Mr. Xiao Lin, we just talked about radios and tape recorders, and then we seem to be talking about digital recording media? Can you go on?"

Xiao Lin nodded and said, "Yes, by the way, haven't you seen recording equipment when you made the movie? Some of them should be recorded digitally." ”

Xu Xin'er shook her head and said helplessly: "This is not very clear, I really don't know how the recording equipment works when making movies." So what's the benefit of that digital record you're talking about?"

"yes, we all say digital CDs, we just know the sound is good, but we don't know why. Teacher Xiao Lin, let's talk about it!" Song Chuyao and Zhang Ziqi also said with a look of curiosity. Of course, Ye Yuxin and Chen Chuying also listened attentively.

Xiao Lin patiently replied: "In the past, audio tapes were used to record analog music signals, which were of average breadth and noisy. In technical terms, the dynamic range is not large enough, the frequency response range is not wide, and the noise floor is large...... That's what audio tapes are all about. ”

Xiao Lin's explanation was relatively easy to understand, so several girls nodded their heads, indicating that they could understand.

Xiao Lin smiled and continued: "Since the analog music signal recorded by tape in the past had many defects, electroacoustic engineers developed a digital recording medium. This kind of audio source is recorded on optical discs, hard disks, memory cards, etc., such as CDs, DVDs, etc., which are all digital recording media. The digital recording media has a wide range of signals with very little noise. In technical terms, it is as follows: a very large dynamic range, an extremely wide frequency response range, and a very low noise floor...... This is the characteristic of digital recording media. ”

Song Chuyao suddenly asked at this time: "It's better to listen to your words than to read a book for ten years! By the way, Xiao Lin, I have liked music since I was a child, but why does it feel a little cold when listening to CDs now?"

"Cold?" Xiao Lin smiled and said: "It's still fierce! Hehe, Xu Xin'er has already said this feeling just now, you can be regarded as heroes and see it the same! Although the adjectives are inappropriate, I understand what you mean! In professional terms, it is -- blunt! Of course, in some cases, it can also be described as cold. The reason for this phenomenon is mainly related to the auditory characteristics of the human ear, and it is also related to the technical means of music restoration.

It's not easy for you to understand that it's too professional, but let me give you an analogy: a cassette tape is like a pool of muddy water, and there are fish in it, and people think it's normal to fish in troubled waters, and this feeling is more natural. But the sound of the CD seems to have widened the pond, dug it deeper, and filtered the water, but how do fish live in such clear water? What would you think if you saw fish in such clear water?

Song Chuyao was the first to shout: "Understand, it's that we are going fishing!"

Xiao Lin said angrily: "Okay, don't make trouble! I won't talk to you more, I'll start working, I'm going to test you one by one in the afternoon!"

Xiao Lin then called Chen Ji and said, "Brother, the equipment inside is really good, and a lot of them are what I need." Can you put some people on me? I'm going to turn this warehouse into a makeshift recording studio. The venue here is fine, right?"

Chen Ji smiled: "Of course there is no problem, this is a warehouse of a military base, it is very safe, very safe, soundproof, and air-conditioned...... It's a great place to sing and record! You can use the venue with confidence, it's no problem for people, how many are you? A hundred is enough, right?"

Xiao Lin grinned: "Dizzy, fifty or sixty, a hundred is too much, I'm not going to cut people!"

Chen Ji smiled and said, "If you lack any materials, make a list, and I'll let people do it first." Our brother, the money will be talked about later!"

Xiao Lin said: "Okay, then thank you, brother." However, where did you intercept these goods? There are a lot of civilian audio equipment in it that I don't need, so you can find a car and take it away! Well, you can pull it to the Electric City and sell it. ”

Chen Ji smiled bitterly: "I really don't understand the audio, how to sell it for money in this case?"

Xiao Lin smiled: "Okay, I'll give you your sister the money from the sale." But you have to get in touch and find me a shop in the Electric City, this thing is not worth it if it is sold on the ground. ”

Chen Ji said: "Isn't this simple? There are only a few shops in our base, and now the army is not allowed to do business, and I am preparing to deal with it! It would be good for you and Chen Chuying to receive it! But ...... Chu Ying will ask you from now on......"

Xiao Lin was stunned for a moment and said, "Brother, what do you mean, why do you feel like you're going to battle?"

Chen Ji said angrily: "Damn, what kind of battlefield do you go to? Don't worry, I can't die! You don't pretend to be confused with me, I mean--my sister Chen Chuying's study, life and career in the future...... I'll leave it all to you! She, my brother can't control it at all! Although she calls you a good apprentice now, I know that in fact she listens to you the most! Please, I must train my sister to be a little more promising! I know she wants to be a singer, but how can I rest assured? Anyway, you can watch it! Hang up! By the way, you can choose a few smuggled cars inside......

"Hey, you...... Your sister, this is too unrighteous!" Hanging up the phone, Xiao Lin muttered, and then said with a smile: "Chen Xuan, Chen Xuan, don't you worry about letting your sister Chen Chuying be a star singer? It's a pity that you are disappointed, I just let her do it!" )