Liu Meng jumped up excitedly and slapped his head, feeling suddenly enlightened. Music originally had melodies. In ancient times, the music was represented by staggers, while modern music was mostly represented by rhythm and beats combined with eight fixed notes.

In other words, the melody of a song is constantly changing, so the digital signal distribution is uneven, but this unevenness is regular. Then, the digital signal of a song can be analyzed first, recorded these parameters, and then the digital signal of the song is processed in segments based on these parameters.

Compress data in segments and restore data in segments.

When Liu Meng thought of this method that could break through the existing compression and reduction limit, he was very excited. He immediately flew his fingers and wrote a signal uneven analysis algorithm. As long as he found the rules according to the music representation method, he set several uneven parameters one by one.

After segmentation, compression and restoration are performed separately, and the data that needs to be recorded is segmented parameters and compressed data of each segment. Because of segmentation parameters, the minimum high-quality restored data required by different segments is different, so a part of the data can be filtered and discarded.

After this processing, the compression ratio can indeed be increased to about 25, while the sound quality is higher than the previous 20 times compression ratio, which means that the music player developed in this way can be comparable to Apple.

After the algorithm was processed, Liu Meng did not hesitate. He could not detect the changes in time in the dark laboratory, so he tirelessly made the circuit boards he needed. Fortunately, there was no need to pay attention to size in the development stage, so Liu Meng simply drew a board.

There is a machine for making circuit boards in the laboratory, which is immediately made and soldered to the required controller, memory chip and other basic accessories. Communication and connection between the controller and the memory are connected and initialized, and then the algorithm program is solidified into the controller.

After this, you can debug on the actual hardware circuit. Liu Meng entered a crazy state again, tireless. After finishing one process, he immediately entered the next process and entered a piece of audio for verification.

However, because there are too many simple hardware circuits and the hardware filtering link is not designed at all, the actual hardware circuit cannot achieve the effect of simulating algorithms in computers, and Liu Meng had to sigh. In terms of algorithms, it is definitely comparable to Apple, but the design level of hardware circuits cannot be achieved in a short period of time. This requires continuous attempts and improvements. He does not have this time at all.

When debugging hardware circuits, you need to find a power supply for power-up, Liu Meng also had an idea. The transformer winding material that he was looking for could be removed from the computer's switching power supply. There are many switching power supply in the computer.

I thought about it and did it. I don’t know how long it took, but the time on the computer was inaccurate. Liu Meng could only estimate that it had been about 10 hours since Huang Sheng and others went out. At that time, the scar man delivered lunch to him, and it was already cold. The time was about 13-15 o’clock, and the time it appeared was about the early morning.

I could only say that I could only take a gamble. I protected the computer case with my body and started to remove it in a very concealed manner. The power supply in the computer is actually available, which is much larger than the required capacity. As long as it is removed skillfully, it will not affect the operation of the computer, and it will not be discovered by Huang Sheng and others.

Although it was already very late and they might have already fallen asleep, Liu Meng was still very nervous and his heart was beating. If he found his private small moves, the consequences would be unimaginable. If he developed a micro high-voltage pulse power supply device, the hope of getting out of trouble was slim.

This night, Liu Meng was destined to be unable to sleep, but instead used his own knowledge and technology to save himself.

In addition to him, there was at least one person who couldn't sleep, Gu Pan.

After the waltz on the ice, the relationship between the two has undergone subtle changes. Although no one wants to say anything, they all know in their hearts that a feeling has grown.

With the idea of ​​avenging revenge and continuing to abuse Liu Meng, Gu Pan was almost thinking about the skating competition he had agreed to with Liu Meng at night while reading books and reviewing the final exam.

She had dinner at five o'clock and specially cleaned herself up in the dormitory. Although she knew that the light on the ice rink was very weak, Liu Meng might not be able to see her clearly, but she still deliberately put on light makeup.

Women are tolerant to those who please themselves, and most girls are like this.

Of course, this was all done secretly by her back with Zheng Wen and Li Yue. On the way, Zheng Wen came back once, which made Gu Pan hurriedly hid in the bathroom. Zheng Wen was very ghostly, and she suddenly saw Gu Pan's abnormality, just not leaving the dormitory.

Seeing that the time was already 6:30, and there was still half an hour before the agreed time, Gu Pan had to hide and come out of the bathroom. Zheng Wen stared at her and laughed a few times, making Gu Pan feel panic, and he was about to leave the dormitory with an ice skate.

Zheng Wen chased and smiled and said, "Pan'er, aren't you Xiang Zixu born with beauty and never put on makeup? You are going to see which handsome guy is going to pick him up. I have to go and see, but don't let any kid cheat me."

Gu Pan's face turned red immediately, with a stern face, took out his cousin's style and scolded: "You girl are talking crazy all day long. I'm just going to skate, worried about frostbite, so I touched some anti-freeze ointment."

"Oh, that's true. I haven't gone skating for a few days anyway. Why don't we go together?" Zheng Wen said in a slight way, smiling like a little fox.

"No need, I'll go to the library to borrow a book before going skating. Let's go first." As he said that, Gu Pan fled to Zheng Wen for the first time.

Zheng Wen giggled and made a victory posture. It seemed that Liu Meng had finally gotten enlightened, and his cousin had gotten enlightened, and he couldn't help but sing: "Today is a good day, a good day, and everything you think can be accomplished."

Looking out of the apartment door, I felt my face burning and warm, and I was secretly annoyed that Zheng Wen was so unrestrained, but when I thought about being about to abuse Liu Meng, I was immediately happy again.

When I waited until 7 o'clock on the ice rink, I still didn't see Liu Meng appear. The little girl was already a little angry and thought to herself that she was still a big man. She was actually late.

Although she was unhappy, Gu Pan was still waiting happily. She also knew that Liu Meng had always been on the ice rink without wearing a mobile phone, so she was waiting at the entrance of the ice rink. If Liu Meng came, she would definitely see that there was no situation where the two people were staggering.

Unless Liu Meng first arrived, he went directly to the ice rink.

When it was 7:30, there was no one left. Gu Pan was a little upset and searched around the ice rink for a few times. He was worried that Liu Meng would not be able to see her halfway through, so he immediately returned to the entrance of the ice rink and waited. Then he was worried that Liu Meng would enter the ice rink when she was looking for it on the ice rink, and then he went to the ice rink for a while.

This was the case. It was not until nine o'clock in the evening that Gu Pan collapsed. He felt that Liu Meng really would not come, and he couldn't help feeling disappointed.

The mood of happiness and expectation was completely destroyed, but I hated Liu Meng, who broke the appointment in my heart, thinking about how to punish him if Liu Meng appeared in a while.

I stayed until ten o'clock. The ice rink was closed, and Gu Pan left the ice rink and returned to the dormitory.

Zheng Wen is the only one in the dormitory. Li Yue has been studying all night with Jiang Wei recently, but the two girls are having questions in their hearts. Who knows if they are studying all night? Maybe they are in which small hotel they are in.

Since the last time Li Yue's fake pregnancy incident, the girls have talked about a lot wider, some knowledge has increased a lot, and the taste has become heavier, just kidding. Some children are not suitable for it.

Once, Li Yue actually showed the thing that could be blown into a balloon for the two girls, so that they could have a long experience. The girls could not lose face, and they had a bit of experience.

Gu Pan returned to the dormitory with a depressed look on his face. He almost said the four big words "I'm unhappy" on his face, which was completely different from the joyfulness when he went out.

Zheng Wen listened to music, looked at the math textbook, and said casually: "What's wrong, I'm not happy about the date with a stern face."

It was really hard to carry any pot. Gu Pan held his anger all night and directly blew towards her, saying angrily: "I'm asking you, who said I'm going on a date? I'm just going to skate."

Zheng Wen was surprised when she heard her tone. She looked up and said suspiciously: "What's wrong? I took a gun and medicine. What kind of anger did Liu Meng do to make you so angry? I'll call me and ask, and I'll help you scold him by the way."

Gu Pan always wanted to call, but he felt that it was really connected. He didn't know what to say. Zheng Wen said this, but she took advantage of her wish and did not defend herself or stop her. She agreed to Zheng Wen's words.

Doudou, the phone kept ringing, but no one answered it, and it was like this after calling three in a row.

"Hey, where did this kid go? No one answered the phone." When Zheng Wen said this, Gu Pan was also shocked and had a bad premonition.

Zheng Wen dialed the boss's phone number again, and the boss answered it almost instantly. He was just running around and was chasing Zheng Wen again, so he naturally started to answer it at the fastest speed. Zheng Wen was shocked. As soon as he called it, the sound came from over there.

"Hey, Xiaowen, I didn't expect it to be so late, so you call me." The boss was very excited in his words, and could hear that there were other people beside him, teasing.

"Go to die, who will allow you to call me that?" Zheng Wen had a lot of objections to the boss's injustice and scolded.

However, the boss was thick-skinned and insisted on calling this. He scolded him fiercely. He avoided it for two days, and after the limelight, he continued to do so.

"Why is Liu Meng here? Why isn't anyone answering the phone?" He argued with the boss for a while, but he really lost his energy and asked hurriedly.

"He is not in the dormitory, oh, the phone seems to be on the bed. I heard the vibration just now." The boss said, touching Liu Meng's phone out of the bed.

"Ah? It's so late, he hasn't come back yet? Did you tell me where he went?"

"It seems that he didn't come back last night." The boss replied.

"You dead man, your roommate disappeared for so long, and you didn't care. What if something happens? " Zheng Wen cursed.

"It's okay, this kid disappears for a few days every few days. We are all used to it, but this time, the phones are all on the bed, which is really rare. It seems that I answered a call last night and never came back." The boss thought for a while and said.

Gu Pan also listened, remembering the joke Liu Meng had made to her last night, and was shocked and said: "You won't be kidnapped by aliens."

She was also concerned and confused, and blurted out all of a sudden. After saying that, she felt that she was too ridiculous, but she was full of worry. Although Liu Meng was sometimes bad and still had a small heart, she was still very trustworthy. She had made an appointment with her to skate and disappeared without saying a word, and her phone was still on the bed.

PS: The girl is in love with her, and the girl is to please her. Liu Meng is back soon and skate with Gu Pan.
Chapter completed!