That night, the two old men almost fought in order to fight over whose house Nanming lived in, but later the old man Lu was even better and snatched Nanming away.

The next morning, as soon as Nan Ming opened his eyes, he saw Chen Wei standing happily in front of him, glaring at the two bloodshot panda eyes and saying, "Caught him, we caught him!"

"Caught?" Nan Ming smiled, "I'm about to catch it too!"

What Nan Ming said was about to be caught, referring to "killing the Underworld".

If it weren't for Chen Wei encountering such a case that was deliberately used to make things difficult for him, I'm afraid Nan Ming wouldn't have thought that the original voice and recording could also be used in this way.

"Killing the Underworld" was too careful, Nanming couldn't track her down through Xiaobai, but Chen Wei gave Nanming an alternative plan.

In modern society, no one can completely get out of the camera unless they hide in the mountains, and if you can know what a person looks like, it is much easier to find him.

At least for Nanming, who has a "lazy bug".

However, there is nothing particularly easy in this world, and Nanming is still facing three problems.

The first problem is that this "Killing Hell" may have used computer voice software, but Xiaobai did not calculate a fixed basic language pattern after analyzing all the calls, that is to say, this call was not generated by splicing recording, but there is also a simulated voice mode for electronic vocalization, and I am trying to rule out this possibility.

The second problem, even if the voice is not computer synthesized, it is possible to use voice changing software, the killing of the dead on the phone is a mature female voice, but the real killing of the dead may be any kind of voice, men, women, the elderly and children. Xiaobai calculated the distortion of the sound and came to the conclusion. The sound is algorithmically compiled.

The third problem is that the killing of the dead may be any kind of race, there are many different races in the world, and the skull characteristics of each race are different, and the final calculated appearance will also have certain differences, which is the model established for Chen Wei. It is the default male Han nationality, which is the most probable possibility, and the result is of course gratifying, but other possibilities cannot be ruled out.

But even if you face three problems, at least there is a solution!

Under Nanming's orders, now Lazy Worm and Xiaobai have begun to retrieve videos of various races on YouTube to obtain more information on voice and facial models.

If you want to come up with a more accurate model, I am afraid that you will have to traverse the entire Internet and retrieve nearly 10 million corresponding data. This is a huge amount of work, and it is a real big data, and it is not like last time, it can be done in a few hours.

And what Nanming has to do now is to first solve the problem of voice changing software.

In order to restore the distorted sound, it is necessary to find a reference, and during the call, some noise appeared. Nan Ming asked Xiaobai to separate each of the noises and make a separate audio track. Then compare it with various other recording effects to find possible correspondence sounds.

Yesterday I was busy in the middle of the night, and today Chen Wei is not in a hurry to go to work and help Nanming as a staff officer.

Chen Wei attaches more importance to this person who is clamoring to kill Nanming, and he can't wait to be like the scum of the police before he was arrested. Caught him at once.

So even though he's been really busy lately, he's still done his homework.

"In terms of probability, since the other party has a relationship with Debbitz, there is a high probability that the environment in which it is located will also be related to Debbitz, which is an unlisted private company. Headquartered in Luxembourg, the major shareholders are Anglo American, the Oppenheim family and the Botswana government, accounting for 45%, 40% and 15% of the shares respectively. If this person is in South Africa, then these noises are likely to be compiled from the sound software that is common on the streets of South Africa. ”

"In other words, I just focus my audio search on the videos uploaded by users in South Africa, and then intercept the noise for comparison...... "Nanming's eyes are shining.

"I think there's a better way. "The human brain still has a unique advantage in abstract thinking and distortion analysis, so I think it's better to find a few experts who know South Africa very well and let them listen to what these sounds are." ”

This is Chen Wei's most valuable advice, Nanming sometimes believes too much in technology, and forgets that human beings are one of the greatest creations of nature, and there is no technology that can completely replace the ability of human beings themselves.

Nan Ming didn't lie in bed anymore, got up with a grunt, and ran to arrange this matter.

"You kid finally got up, I bought you breakfast, it's almost cold, come and take a look often, these are early ......" Old man Lu was playing Tai Chi in the yard, and when he saw Nan Ming, he immediately shouted, but Nan Ming disappeared as soon as he slipped away, leaving Lu Lao to shake his head helplessly: "This little monkey!"

When you are lazy, you are lazy, and when you are diligent, you are too diligent.

Thinking of looking for someone, the first person Nanming was looking for was Qing Zhongtang, hearing Nan Ming's needs, Qing Zhongtang patted his chest and said leave it to him, and in the afternoon, he found all the people and gathered them in a conference room.

"Mr. Nan, this is a group of colleagues within our system who have worked in South Africa for a long time, as well as some colleagues on the diplomatic front. Qing Zhongtang said, "I have already explained the general situation to them, Mr. Nan, you directly play the audio and let them listen to it." ”

Qingzhongtang found twenty or thirty people for Nanming, and they gathered together, including men, women, and children.

Listening to the recording played by Nanming, these people all frowned and thought hard, and shook their heads frequently.

Nan Ming looked at their expressions and was inevitably disappointed.

At this moment, an old diplomat with gray hair said: "Mr. Nan, why don't you play the original audio for us to listen to?"

Nanming was a little embarrassed, Qing Zhongtang nodded at him, those who could be brought here by Qing Zhongtang were basically more reliable, because of their work, they knew how to keep it secret.

Nanming released the dialogue between himself and "Killing the Underworld", everyone frowned and listened, the dialogue was a little weird, what kind of Great Demon King of Nanming or something, it sounded very middle-class.

But this release has really achieved results, the human brain, the ability to comprehensively process information, is still far beyond the old diplomat just now suddenly hummed, it sounded like a simple melody, he said: "Mr. Nan, I think, this should be a South African ballad, a little distorted, the instrument is a very small gadget in South Africa, called ...... What's it called?"

"Thumb piano!"

"Xiaobai, search for an instrument called the thumb piano, read its timbre, then search for African folk songs, cross-contrast ......" Nan Ming Dao.

On the screen behind Nan Ming, the spectrum of dialogue with the killing of the dead was gradually changing, and when the spectrum was finally settled, a very young female voice sounded: "I'm sorry, for the sake of the future of the universe, I have to kill you!"

"I'm sorry, I found you!" Nanming smiled.

The second puzzle has been solved!

(Well, because Chen Wei didn't know why he was blocked, he changed his name to Chen Wei.) (To be continued.) )