As soon as Fang Yu said that, the entire room instantly fell silent.
Something was amiss?
What did he mean?
Everyone was immediately filled with questions.
In the audio file, Mr. Li's voice was trembling slightly, causing the atmosphere in the room to be a little strange.
After Fang Yu said that, everyone instantly felt that this voice seemed to be a little strange.
The atmosphere in the room became even more tense. It felt like they were watching a horror movie.
"Fang Yu, don't scare me. You don't know how timid I am!”
Little Tong could not help but lean closer to Fang Yu. Her little heart could not take it anymore.
Although it was summer, she still felt a chill on her back.
Deng Chao kept rubbing his hands to hide his guilt.
At the same time, he subconsciously turned his head to look behind him. After realizing that there was nothing, he finally calmed down.
Deng Chao kept complaining in his heart. Wasn't this supposed to be a crime solving show? Why did it change to a supernatural show?
"Fang Yu, don't keep me in suspense!"
"What did you find? Tell us quickly!”
Although Qin Ya was a member of the Criminal Investigation Unit and was quite skilled, she was still a girl. She was not very bold.
At first, she did not feel anything strange after hearing Fang Yu's words.
However, the reactions of the others in the room made her feel a little flustered and extremely uncomfortable.
"Fang Yu, are you saying that there's something wrong with the rhythm of this sound?”
While the others were urging Fang Yu, Guan Yunfeng was deep in thought.
There was indeed nothing wrong with this voice.
However, Guan Yunfeng had many years of criminal investigation experience. When Fang Yu pointed out that there was something wrong with the voice, he listened carefully a few times.
Slowly, he seemed to have discovered the problem.
Although he didn't know if it was right, this voice could be divided according to a certain pattern.
First of all, the first three parts of the voice were a whole.
In other words,
"Dong-dong-dong-"
"Dong-"
"Dong-dong-dong-"
The three sounds were a whole.
The voices that followed were all repeated as a whole.
Therefore, if he wanted to find the problem from this voice, he only needed to analyze the whole thing.
After listening carefully, Guan Yunfeng realized that the interval between the first and third string of the sound was relatively short.
Moreover, the time interval between the two sounds was almost the same, about one second.
As for the second string of sounds, the time interval between each " dong " was longer than the first three strings, about three seconds.
If such a time interval only appeared once or twice, it would not be surprising.
However, the entire audio was a few minutes long, and it had always been at such a regular interval.
Even after the recording ended, the sound continued.
In other words, this pattern of time intervals was deliberately made.
In that case, this series of sounds was definitely not a casual knock, but an attempt to express something.
Guan Yunfeng thought about it for a long time. Although he had discovered this pattern, he could not figure out what it meant.
Therefore, he announced this discovery in front of everyone.
He looked at Fang Yu with a questioning gaze.
Deng Chao, Xiao Tong, and the others were even more confused after hearing Guan Yunfeng's words.
That seemed to be the question, but they couldn't guess what the purpose of knocking people was.
The strange atmosphere rose again.
"I don't know if you've heard of Morse code?”
Fang Yu didn't intend to keep him in suspense, because the audio was expressing something that he couldn't afford to delay any longer.
"Morse code?"
"I've heard of this before. This was the telegram used in the last century, right?”
"Could this voice be related to Morse code?”
Qin Ya held her chin and said thoughtfully.
"That's right!"
Fang Yu raised his voice slightly.
"Morse code was mainly used for telegram transmission.”
"However, because of its uniqueness, it can express some very important things under harsh conditions, so it is widely used in other aspects.”
"For example, when you ask for help."
"In other words, when in danger, you can use Morse code to send out the international SOS distress signal.”
"There are usually two ways to send out such a distress signal, knocking sounds and using lights.”
"If we use sound, we can use three short, three long, and three short signals.”
"In other words, first make three sounds with a relatively short time interval, then make three sounds with a relatively long time interval.”
" Then, let out three short sounds at the same time interval as the first string.”
"This will form an SOS signal.”
"The sound we heard just now, through the time interval, we can undoubtedly find that it is a SOS signal.”
"This means that the person who made this voice is telling the outside world that he is in trouble and wants to be saved.”
After hearing Fang Yu's words, Guan Yunfeng slapped his forehead and suddenly realized something.
He knew how to use Morse code to send out SOS signals.
However, because he had not seen a victim use this method to send out a distress signal to the outside world for many years.
Therefore, he had neglected it for a moment and did not think of this aspect.
Hearing this, the others heaved a sigh of relief.
Fortunately, it wasn't anything shocking.
However, since someone had sent out a distress signal to the outside world, and it was at a fixed time every day.
That meant that the victim was still in an extremely dangerous situation.
It was no longer a matter of which case to choose for the show.
There were victims who were constantly being persecuted, so it was naturally most important to rescue them as soon as possible.
Moreover, in Fang Yu's opinion, to be able to use this method to ask for help from the outside world meant that the victim had a certain level of defensive knowledge.
To be able to trap such a person, the murderer must be a very cunning person.
This case was not as simple as it seemed.
This book comes from：m.funovel.com。