Chapter 215: Active Noise Cancellation Technology
The next morning, not long after Shen Danqing went to work, Secretary Liu came in and reported: "Boss, the people for the meeting have arrived, and in addition, Mr. Li of Julong Company is also asking to see him outside." ”
Shen Danqing thought for a while and said to Secretary Liu: "Let Mr. Li come in, the people in the meeting will tell them to wait, Mr. Li, I will only say a few words here, soon." ”
"Oh!" Secretary Liu replied and turned to go out.
After a while, Li Zhengyu came in, and as soon as he came in, he bowed and greeted: "Boss"
Shen Danqing said to him with a smile: "Mr. Li, you can already officially make a film." But at first, I won't make movies, but commercials, landscape films, adventure shows, wilderness survival shows, etc.
In addition, you have to keep in mind that the focus of the scenery film is not the scenery, but the vivid colors of the wild violet, which thoroughly reveals the advantages of our display, and you should take more local close-ups, such as: the veins of the leaves, the stamens of the flowers, etc. The high-pixel advantages of our digital TV will be fully exerted. Therefore, if you shoot a landscape film, it is equivalent to a commercial film in disguise.
Also, it's pretty much the same for wilderness adventures. But the wilderness adventure has a starring role, which requires the protagonist to be a tough guy image, and in the wild there are thrilling sports activities such as: rock climbing, cave exploration, rafting, cliff jumping, mountaineering, alpine skiing, etc.
Survival in the wild is the knowledge of survival in the wild, such as: camping construction, poisonous plant defense, various methods of fire, fishing, distinguishing the direction in the field without tools, food gathering, hunting and other knowledge of survival in the wild.
Of course, there is a team behind the wilderness survival and wilderness exploration that supports the protagonists, and it is not really asking them to eat raw food and risk their lives. It's not a live broadcast of the whole process, which can be cut, but we want to create an illusion that it is a live broadcast. We don't have to say whether it's live or cut. Make the audience mistakenly think that the protagonist is alone trying to survive or explore, so that you are considered successful. ”
Speaking of this, Shen Danqing stopped, looked at Li Zhengyu with sharp eyes and asked, "Mr. Li, do you understand what I mean?"
Being stared at and asked by the boss like this, Li Zhengyu had goosebumps all over his body, and he hurriedly replied, "Boss, I know." Then he boldly asked, "Boss, are we going to divide into several shooting teams?"
"It's best because whether it's a landscape film or a wilderness adventure and wilderness survival, it can be made into a series. In particular, the scenery film can be divided into tourism scenery films, underwater world, animal world, rare plants, etc., which is a series that can be filmed for a long time. In addition, the filming environment also has to change every episode, first in China, and then in the future, it will be filmed around the world. ”
After listening to the boss's detailed explanation, Li Zhengyu said with confidence: "Boss, I know how to do it." ”
"Hmm!" Shen Danqing replied habitually, and then said as if remembering something: "That's right! You first shoot all the company's products in a commercial film and then shoot another film." ”
"Oh! I see. Li Zhengyu bent down and agreed.
Shen Danqing thought about it again and found that there was nothing to advise, so he waved his hand and said to him, "You go back first!"
"Boss, then I'll quit. Goodbye!" Li Zhengyu saw that the boss had ordered the eviction of customers, so he bowed again and said goodbye.
When Li Zhengyu left, Shen Danqing got up and went to the conference room. As soon as he stepped into the conference room, several people who had been waiting stood up and greeted him, "Boss."
Shen Danqing walked to the chairman's seat, stretched out his hand and pressed down and said, "Everyone sit." Then he sat down first.
After they sat down, Shen Danqing spoke: "I called everyone to the meeting this time, because there are a few scientific research topics to be handed over to you to do.
Our company is about to produce digital TV sets, but there is one thing on the TV set, and we have not yet mastered the relevant technology.
That's the speaker, or speaker. Of course, ordinary speakers are available on the market, but if we want excellent sound quality, we must develop such technology ourselves. The most important thing about a horn is the core and diaphragm. I don't know much about the core, so I'll leave it to the Institute of Mechanical and Electrical Engineering. ”
"Yes," Fang Hongjie, director of the Institute of Mechanical and Electrical Engineering, immediately stood up and agreed.
Shen Danqing nodded with satisfaction, and then continued: "For the diaphragm of the audio, I ask for the use of carbon nano-thin film materials. This material can be made quite thin, so the vibration effect will be better. Moreover, carbon nanomaterials have very high strength and are the most ideal diaphragm materials.
I will hand over this material to the Institute of Non-Metallic Research to complete, with the assistance of the Institute of Physics. ”
"Yes," Zhang Xiangdong from the Institute of Nonmetals and Hu Weihong from the Institute of Physics also stood up and agreed.
After arranging these two scientific research topics, Shen Danqing said to the remaining Hong Tao and Lu Rucheng, the two old partners for many years: "The task of the two of you is not light. In addition to speakers, there are also digital audio equipment. In order to achieve the most perfect sound quality performance, it is necessary to have professional audio equipment to process the sound quality. The audio equipment on the market today is all analog audio equipment, which does not match our products. In addition, I do not plan to enter the traditional film and record industry, and in the future, our company will only focus on the digital audio and video field. If we want to do it, we need to be the leader of the innovation industry, not the catch-up of the traditional industry.
Digital audio equipment is a new field that no one can learn from before us. I'll just tell you what I think of this new device. First of all, we can be sure that the new device, like the traditional analog sound equipment, has the only function of processing sound. I'll give you an example: a song recorded by a singer in a professional recording studio is an acoustic quality. But if he sang in the square, then the song he sang would be flawed. Outside, there will be background sounds, noises, echoes, cheers, or other unusual noises.
Then our digital audio equipment is to get rid of these noises. Restore the song to its original sound quality. Analog audio equipment achieves this by means of noise reduction circuits. In addition to more noise reduction circuits, our digital audio equipment also needs active noise cancellation technology.
So what is active noise cancellation technology? That is, we need to sample all kinds of noise, echo and background sounds, and compile them into a noise database through program conversion. An instruction set database similar to a chip. It's just that the chip will do the invocation and calculation according to the instruction set. Our audio processing chip will actively screen out the noise according to this noise database.
In view of this, you have two important tasks to do. The first is to use the device to collect the digital signature code of noise, echo, and background sound. and make them into a database.
The second is to find a state-of-the-art recording studio with high-quality acoustic digital codes.
Let's take a few songs as examples. They are the noisy environment and the original sound quality. Continuous comparative improvement. Even songs that will be recorded in a noisy environment can meet the standard of original sound quality through active noise cancellation. Even if you do it initially, then go through a lot of comparative experiments. If it does work well, then you are considered successful.
Do you understand?"
Hong Tao and Lu Rucheng hurriedly stood up and replied, "Boss, we understand." ”
Also, Shen Danqing has spoken so in detail, they are not fools, they must understand the so-called active noise reduction technology.
In fact, this active noise reduction technology also has a great use in the military, it can be used in the noise reduction technology of radar, and can accurately judge the real signal you want to track. Before the high development of microelectronics technology and software technology, the military also used the old-fashioned simulated circuit noise reduction technology.
This technology is more widely used in civilian products, such as: MP3, MP4, mobile phones, telephones and other products have great uses.
"Well, now that you understand, let's do it! Remember, remember to upgrade the previous audio processing chip to one with active noise cancellation technology. That one...... Don't replace the audio processing chip of the Dell computer, let's use the old one! We are not obligated to upgrade their products as well, and we will talk about it when they come to the door themselves. Shen Danqing said while thinking.
"Oh! We got it. Hong Tao and Lu Rucheng replied again.
In fact, Shen Danqing gave orders again, they only had to study, what did the upgrade of the company's products have to do with them! The Dell computer had nothing to do with them. But since the boss said so, they agreed first, and they definitely won't care about it afterwards, at most they will notify the relevant companies.
Shen Danqing found that there was nothing to talk about, so he stood up and announced the "adjournment". Then he took the lead and left the room.
Back in the office, Shen Danqing began to review the documents, and met two groups of people in the morning, which delayed a lot of time, so the workload became larger.
In this way, I single-mindedly reviewed the documents until almost noon. Shen Danqing habitually looked at the wolf watch in his hand and found that it was 11:40, so he stopped working, got up and started to go downstairs to eat. Due to the large number of people in the company, he has some privileges, and generally goes downstairs to eat 10 to 20 minutes earlier than the employees, so that he does not have to squeeze with the employees. Not only was he uncomfortable, but the employees also felt awkward.
In addition, he went downstairs to eat early There is another advantage, that is, no one dares to go downstairs to eat early, if he is bumped by the boss, this matter will be troublesome.
In addition, it is worth mentioning that Changsheng Investment Group only punches the commuting card, and does not clock in at lunchtime. Therefore, some smart people will also find an opportunity to sneak down early to eat, but they also have to be careful and try their best, because there is a security guard on duty at the door, and the moral score record is the responsibility of the security department.
To be continued......