Chapter 755

Let the computer sound, in this era, seems to belong to fantasy.

Computers are mainly used for scientific calculation. When the first ENIAC in history was born, it was used to calculate the trajectory. At the same time, it was also used for password decoding.

Even if we look at the future university computer courses, almost all of them are opened in the Department of mathematics, which is most closely related to mathematics.

Now, the computer has gradually entered the family. However, at this time, it mainly carries out word processing. For example, it is necessary to load the printer driver. It is also the first project of Qiu Xiaojun. He completed it very quickly.

Now, looking at the graphical operating system, I don't know when Qiu Xiaojun suddenly thought of something. How good it would be if the computer could make a sound!

The computer is no longer mute and can communicate with people. This is definitely a huge breakthrough!

Qiu Xiaojun has struggled for months to make the computer pronounce, but he can't make a breakthrough.

This requires co hosting of software and hardware. For example, if you want to make a computer sound, you need something called a sound card. In history, the world's first sound card is called adlib magic sound card, which was born in adlib audio company in NiuGuo in 1984. It can be said that adlib company is truly the "father of sound card".

Of course, the initial technology is still very backward, and there are many deficiencies in performance. Take this first sound card for example, it is mono, and the sound quality now seems to be extremely bad, but there is no doubt that its birth created a precedent in computer audio technology.

In this era, no one has thought about the role of making computers sound. Until later generations, with the development of more than ten years, multimedia PC has become the standard. Everyone can use their PC to listen to CDs, play audio games and talk through QQ chat tools. Almost everything has something to do with PC audio.

It can be said that with sound, there is a colorful multimedia world.

Qiu Xiaojun is still a boy and has his own focus. Qiu Xiaojun feels that making the computer sound has great attraction for him. He must complete this project.

Qiu Xiaojun is very persistent.

Lisa's Chinese pronunciation is very standard. Qiu Xiaojun didn't look back and said directly, "I want the computer to make sound. I welded a control circuit board myself and hope to integrate it into the computer. However, no matter how I modify it, it can't make sound."

No one is involved in the project of seeking Xiaojun. It's just seeking Xiaojun's own needs to make the computer sound. Almost everyone here thinks it's a fantasy.

The horn uses analog signals, while the computer can process digital signals. The two cannot be mixed. Therefore, to make sound, several analog-to-digital conversion circuits are required to convert the digital sound signals used by the computer into analog signals that can be used by speakers and other equipment, and then there is an amplification part of the analog circuit to finally push the horn to make sound.

In later sound cards, there are special sound control chips to complete this conversion, but now, Qiu Xiaojun can't do it alone. He just wants to use the function of CPU to collect and sort out data. In this way, of course, he will encounter more problems.

Lisa bent down and looked at the computer screen. Her hair drooped unconsciously. Some fell on Qiu Xiaojun. The faint fragrance was also entering Qiu Xiaojun's nose.

At this time, Qiu Xiaojun is in love. However, he has no interest in men and women. Technology is his most tireless pursuit.

Beg Xiaojun to look at Lisa and be very focused.

"I think there is something wrong with the writing of this sampling code," Lisa said. "We can appropriately improve the sampling rate."

"However, that will increase the burden on the CPU. I dare not design it too high."

"What's the matter? It's a waste of CPU resources to let the computer process sound. Change it to 10000." Lisa began to modify the code.

To let the computer process multimedia data is a waste of CPU. After all, it is a huge amount of data. Only after the CPU continues to improve, can the multimedia computer enter the life of ordinary people, play games and watch movies. At that time, the utilization rate of CPU is quite high.

Now, Lisa doesn't care if the CPU works at full speed. She only cares if the program can run. Everything has to wait until the program can run.

Looking at Lisa's back, Qin Guan was also very impressed. He knew that he should have sent Lisa earlier!

The system in your brain is quite complex. You don't even know yourself. Lisa can study it thoroughly. She can also study loopholes, arrange back doors, etc. it can be said that Lisa is definitely a genius in this field.

Now, it's no problem to simply deal with a computer voice program. Even Qin Guan thinks that if there is a problem with the circuit, Lisa can pick up an electric soldering iron and re weld the circuit above.

Only heard the clattering sound of the keyboard, Lisa had begun to modify the code.

"So, is it really OK?" Qiu Xiaojun was still skeptical. Looking at the beating characters on the screen, she had completed the compilation. Then Lisa started the system.

"Hi, Hello!" just then, a simple voice came out from the horn.

The sound is very simple, without any emotion, dry. The diaphragm of the horn seems to vibrate reluctantly, full of a mechanical sense.

"What's the sound?" he was telling his men at the other end to complete the startup screen. Hearing this sound, Ni Gong was stunned and shouted to this side.

"Success, success!" Qiu Xiaojun stood up happily and stood directly on the chair. He jumped a few times. Then he suddenly found that the one who had just helped him modify the code was actually a big sister?

"Are you?" Qiu Xiaojun asked curiously. The most famous programmers in the country have gathered here. Later, Qiu Xiaojun has a high level of respect for each one. However, Qiu Xiaojun doesn't know the woman in front of him. Even Qiu Xiaojun feels that the woman's appearance is very strange and doesn't look like a Han.

"My name is Lisa. You can call me lisa sister." Lisa stretched out her hand: "we can make friends. If we encounter procedural problems in the future, we can also come to me."

At this time, the people around are still in surprise. What? Did the computer really make a sound? Did you really make a noise? Even Ni Gong ran over: "how did you do this?"

"I suggest that at our press conference tomorrow, we can let our Hanxin computer, in a word, will certainly amaze the world," Qin Guan said.