Huayu for engineering students

Chapter 27 Exchange
Wang Fei's birthday party was not a grand event, nor did it cause any ripples.But Wang Fei is very happy, her life has started a new chapter.

The two of them spent their days in the small courtyard, getting up early every day to practice kung fu, and practicing songs from time to time. Wang Xu prepared several songs for her, enough for her to use for a while.

Most importantly, she began to feel the change in her breath.At least the continuous treble will no longer drift, and the bass field has begun to show a stable and round temperament.

This time, Wang Fei really believed it. She never expected that just drinking soup and dancing every day would have such a good effect.Since then, Wang Fei has also started to take the initiative to practice.

She really likes to sing, this kind of kung fu that can make her sing better is just too sweet, isn't it?

It's just that every night that boy is so capable of tossing, so she really loves and hates it, but she can't stop it.

What I love is the full sense of fullness every night, and the feeling of constantly flying in the clouds. I love it so much that I hope this day will never end.

What I hate is the weakness and soreness in my body when I get up every day, especially the attachment feeling that I want to run away immediately, but I can't bear to really go.

Wang Xu has gained quite a lot recently. First of all, Dong Si Wang Er has become famous, at least in the music circle.

Not because it is Wang Fei's boyfriend, but because of those two original ballads, although "Legend" is a bit far-fetched to say that they are ballads.

However, most people who listen to songs don't know what folk songs are. In most people's cognition, as long as they play guitar and sing, they are considered folk songs.

At the moment, Wang Fei is still a bit popular among the middle school students, and other places are basically equivalent to passers-by. If it wasn't because of her relationship with Luan Shu, and Luan Shu showed off everywhere, most people didn't even know that Wang Fei and Wang Jingwen were the same person.

There are many benefits of being famous, the first of which is that the rich man has raised his price, um, 200 for four songs, which is still a warm-up show, a very high salary.

The biggest advantage of being famous is that the progress of Wang Xu's recording studio project has been greatly improved. When he took Wang Fei to go shopping on a big motorcycle, many equipment dealers could recognize him immediately.

When he was shopping for goods at the equipment dealer, people would come to chat with him from time to time. It was a good story, so it was widely spread.

A song stole Luan Shu's girl, and this kind of gossip spread faster than a wildfire.Wang Xu was also very aggrieved, what does it mean to rob Luan Shu's girl, if it is on a first-come, first-served basis, he, Wang Xu, was the one who was earlier, and he is also in love with her secretly.

The equipment dealer is called Wang Hongwu. He makes professional audio equipment in the imperial capital. He has a wide range of channels. He can get almost everything from ugly countries, corrupt countries, Denmark, and small days.

Hearing Wang Xu's appeal, he also took the initiative to help him analyze it, telling him that since you want to transform, it is better to buy second-hand ones first.

Wang Xu was right when he thought about it. First of all, the replacement of audio-visual equipment is not so fast, and the digital equipment is not too aging.

In addition, it was originally second-hand, so I just laid a foundation here, and the core still depends on the technology of the system.

Wang Xu is a good person, and only spent a few hundred thousand yuan to scrape together all kinds of second-hand equipment needed for a recording studio.It's pretty neat from pickup recording to track splitting and merging.

There are also some equipment that look quite new, but there are faults, and no one can repair them. Wang Xu took a look and collected a bunch of them at the price of junk.

Since every piece of equipment is a little faulty, the recorded things can only be heard.Don't worry, we have to see the follow-up transformation.

After returning to the small courtyard, Wang Xu took advantage of his spare time to check carefully. The recording equipment was included in his skills.

Or how can I say that this system is weird, it is obviously an entertainment system, and as a result, things related to entertainment are extremely expensive, while things that have nothing to do with it are very cheap, and there are frequent big deliveries.

For example, when the predecessor obtained the system, the face of the lottery was extremely black.Only got one white skill.But when the skills were passed on, it was discovered that this skill called equipment maintenance actually comes with various knowledge of electronics, circuits, machinery, and computers, plus countless circuit drawings, mechanical structures, software codes, etc., it is simply too damn comprehensive. .

This is also one of the reasons why the predecessor chose the automation department in the end, because he didn't have to study.

However, such an important and wide-ranging skill is actually only white.And those singing skills, music proficiency, and entertainment-related things are all above blue to gold, who do you talk to for reasoning.

Now that the previous system has been disabled, entertainment skills are stored in the form of skills by its own system, which can be instilled directly, saving the learning process.The other technologies that can be exchanged now are just technologies, you have to learn and try by yourself.

But this kind of trouble is really not a problem for an engineering student who has traveled through countless worlds.

Among them, the digital recording equipment can continue to be used, and the replacement speed of various music equipment is not fast. Many top recording studios still use equipment from the 70s.

Even many equipment from the analog era are still used by enthusiasts, and the hum of the analog equipment can sometimes become a very beautiful background sound.

This is the creativity of people who play music. The sound is the sound, only good or bad. The so-called purity is a very subjective thing.

After carefully analyzing the audio, you will find that the pure sound may contain more small clutter, but these clutter are very harmonious.

Tape recorders of this era were actually analog music, while CDs were digital music.Therefore, this era is an era of modular mix and match.

The pickup gets the analog signal, then converts it into a digital signal, and then edits it to form a digital mixtape. At this time, the tape is still used, but it is a digital tape, and the recorded signal is also digital.

The so-called simulation is the original form of direct music, and various waveforms of sound waves are recorded on the medium in a continuous manner.

The digital mode is to decompose the waveform into square waves one by one, and form digital music through small samples.Obviously, such sampling will have two key parameters, one is the sampling rate on the horizontal axis, and the other is the bit rate on the vertical axis.

As long as the sampling is fine enough, the human ear will not be able to tell the difference.The so-called sampling rate is how finely divided the data is according to time. Today's recording studios generally use 48khz, which means 48000 samples per second.

In fact, this sampling rate has been used since the 60s, and it is also the current mainstream.

This kind of sampling is enough, no matter how hard you toss it, people will not hear the difference, even if it is still the mainstream after 40 years.

Therefore, in principle, digital tapes recorded 40 years ago can be converted to high-definition in the 21st century, and the sampling rate is no problem.

The bit rate is mostly 16-bit in this era, but 24-bit or even 32-bit is generally used in later generations, which makes some old records have a gap when converting to high-definition.

But speaking responsibly, most people can't hear it at all, and even professionals, only a few people can hear the difference.The roughness of old records you feel now is actually a problem with the pickup equipment itself at that time, not a problem with digital sampling and storage.

The result of this kind of high-precision sampling recording is that tapes are very expensive. One instrument and one track require almost one tape, and the price of one tape is hundreds, or even thousands.

However, the storage capacity of computers in this era is still in megabytes. An ordinary hard disk is 40 megabytes, and the largest is only 400 megabytes. How much data is an uncompressed audio track?

如果是16位数字音频，那么简单计算一下就可以知道一段4分钟音频就需要4（分钟）* 60（秒）* 16（位）* 48000（采样率）= 184，320，000也就是180兆位。和20多兆字节。通俗点说就是：一道音轨，一块硬盘。

So editing in this era is a very troublesome thing. The data is stored on the tape. If you need a certain section, you have to rewind the tape and read that section again. Think about the state of efficiency.

This is why, recording studios of that era generally did not record each instrument separately, because of the difficulty of synthesis.

In the future, the memory of any notebook will be counted in turn. If several audio tracks are loaded into the memory at the same time, the software can naturally pull them back and forth quickly.And in this era when the 386 has just been released and the memory is only a few megabytes, the synthesized audio track is a tangle.

In any case, there are only so many things on hand. If you have the technology, you have to have a factory to produce it for you, so everything can only be done slowly.

Wang Xuzai carefully studied the set of second-hand equipment. First of all, it is necessary to run this system, at least to the level that is common in recording studios today, and it would be better if it can be higher.

After careful consideration, Wang Xu finally exchanged for the first technology, a new type of microphone production technology.

This is a condenser microphone that is slightly ahead of the current technology. Wang Xu chose it because it comes with several basic material manufacturing processes, such as ultra-thin electret diaphragm, gate transistor, high-efficiency diode, high-purity oxygen-free Copper wire, high-strength aluminum alloy enclosure.

That's right, this microphone, which only needs 1000 emotional points, can bring Wang Xu a lot of high-end production technology and processing technology.

However, just having technical materials is not enough. First of all, you have to understand and learn these technologies, or you may have to go to the library to look up books.

Then laboratory experiments are needed, selection of existing production equipment, experimental production, and mass production are required, so that they can be provided in large quantities.

Although there is no way to do it in one step, but after it is broken down, it will be no problem to open several factories in the future.Anyway, Wang Xu is not in a hurry. It won't be too late to experiment with this thing after school starts.

As for now, of course, we will continue to live with Wang Fei for a while, who knows that Wang Fei will be called back to Xiangjiang one day, and the two will live apart.

Wang Xu doesn't intend to get too involved in Wang Fei's singing career now. On the one hand, she doesn't like her current manager very much now, and she plans to call Wang Fei back because of him. She simply doesn't like it.

This period of time may be Wang Fei's happiest time in the future. Of course, he will be bored for a while. As school starts, Wang Fei may have to go back to Xiangjiang.

Wang Xu has actually copied more than ten songs now, but he hasn't figured out how to distribute the film yet.At least he doesn't plan to sell himself too early, there are a lot of songs that can be copied, and he doesn't want to give away all the copyrights.

Moreover, Wang Fei once introduced the Black Panthers to her current manager, but Wang Xu always felt that the manager was not very reliable.

As far as the quality of the Black Panther album was concerned, it didn't make any splashes in Xiangjiang, and it sold [-] copies. On the contrary, it exploded with terrifying influence after it was released in the mainland in the second year. The level of operation is the same.

In the previous life in 93, Wang Fei's current agent sold Wang Fei for 200 million yuan. Wang Fei and the company formed a cooperative relationship, and had the control over her own songs, and only then did she become the queen Wang Fei.

But now I don't have much bargaining power, so I'd better wait, or make a fuss in the country first.

(Seek to follow up, newcomer author, engineering background, do not know everything, I just know to do my best to write well. It is said that follow-up reading is very important for newcomer authors, please gentlemen, follow-up, collection, recommendation)

(End of this chapter)