Chapter 916: The Hymn of the Seabed (Addition for [Queen 1 Mengxi] Leader)

the next day.

"Master, are you going to go out to sea to watch whales again today?"

Early in the morning, Wang Qian guessed Zhang Zian's intention when he saw Zhang Zian walking towards Wuling Shenguang with a heavy battery.

"Well, that's right." Zhang Zian nodded, opened the door of the car, connected the battery to the motor, and confirmed that the battery was fully charged.

"Uh……"

Wang Gan wondered, although whale watching is elegant, but once in a while is enough, why do you have to go every day? Is whale watching really that interesting? It's not about looking at beautiful women...

"What is this?" He picked up a long stick-shaped gray object in the car and fiddled with it. He hadn't seen this thing in the car before, so it should have just been put in.

The surface of the long rod-shaped object is rough, and it feels like the pickup part of the microphone in KTV. There is a long gray wire coiled behind it, and the surface of the wire is covered with plastic.

"This is for underwater recording." Zhang Zian was afraid that he would accidentally break the precision instrument, so he snatched it from him and put it back in the carriage, "Look at the store, I'll go back when I go - remember to call the police if you don't come back !"

Wang Gan watched Zhang Zian drive away with a constipated look.

Li Kun strolled out from the next door, approached and said, "Brother, Master has been driving frequently recently, we haven't touched the steering wheel for a long time, and our hands are so tired...By the way, what did Master go to do again?"

"Claims to record underwater sounds, but I see Master's deceitful demeanor, suspecting that he is trying to play me off, hiding some secrets that he doesn't want to tell us..." Wang Gan frowned in thought, with a serious expression.

"Oh? What's the secret?" Li Kun cheered up and asked nervously, "Is it the correct interpretation method of the advanced beast control?"

"That's not it... I see that the things that Master packed in the carriage are thick and long,

It looks very advanced, it may be... the legendary uranium rod! "Wang Gan gestured seriously.

"A uranium stick?" Li Kun was dumbfounded, "What is the master doing with the uranium stick? Do you want to make trouble?"

Seeing that there was no one around, Wang Gan said in a low voice, "Maybe Master secretly raises a Godzilla in the sea..."

"Godzilla? Are you sure you didn't secretly raise a rotten kun?"

"Quack! What did you say was great?"

Richard flew over with fluttering wings, inexplicably excited, just because it heard y as r...

Zhang Zian drove very carefully today, especially when he came to the beach, he slowed down to avoid damaging the valuable instruments in the car.

The underwater pickup that Professor Wei Kang borrowed from him was not an ordinary one, but a high-end one used for serious scientific research in the School of Underwater Acoustic Engineering of Binhai University.

Underwater pickups are not just as simple as recording underwater sounds. In that case, you can buy them on Taobao, but a complete set of equipment including signal processing systems. It converts the underwater acoustic signal into an optical signal, transmits it into the system through an optical fiber, modulates and enhances it, outputs a sound wave chart, and converts the sound that cannot be heard by the human ear into an audible one for researchers to analyze . This system is expensive, and ordinary people can't buy it if they want to.

Same as yesterday, Zhang Zian inflated the assault boat and checked for air leaks by the way. There is no room for sloppy carelessness at sea, and a misstep would be an eternal hatred.

After checking that there was no problem, he carefully moved the equipment into the boat and pushed the boat into the sea.

With the heavy equipment ballast, the waterline of the Zodiac is deeper than yesterday, and the driving stability is also higher. He was very fortunate that he didn't buy an assault boat that was too small, otherwise it would be too cramped now.

He judged the distance with the naked eye, parked the boat closer to the coastline than yesterday, picked up the gray rod-shaped underwater pickup, and did not throw it directly into the water, but first wet the surface evenly to confirm that there were no air bubbles attached to it. surface, so as not to cause sound distortion, and then slowly release the fiber optic cable.

There is a scale marked on the fiber optic cable. Zhang Zian didn't know how deep the sea water was under his feet at this time, so he temporarily released it for 50 meters, and estimated that it might be almost to the end - if it was released too shallow, all the noise collected would be the noise of the water surface.

When he was ready, he couldn't wait to put on the matching monitor-grade headphones.

It is really a high-end professional ear. The thick sponge fits the contour of the ear tightly. After a little adjustment, it almost completely isolates all sounds from the outside world.

He turned on the switch, and the real-time waveform of the sound jumped out on the small monitor.

After the sound from the bottom of the sea was enhanced, the moment he heard it from the earphones, he was terrified, shrank his body tightly as if wrapped in a cold current, and shuddered shiveringly!

It's hard to describe the sound he heard accurately, like standing in front of an extremely thick and wide stone gate, watching the stone gate slowly open, and countless angel choirs poured out from the stone gate, singing magnificent hymns in unison .

His legs were trembling. If he hadn't been sitting on the shaky boat, he might have knelt down on the spot.

Professional-grade underwater pickups and monitor-grade headphones send all the sounds of the seabed within a few kilometers into his eardrums, including sounds from animals, sounds from ocean currents, sounds from propellers and motors, and sounds from far away Sounds of storms, lightning and thunder—sounds from high-energy storms can even be received across thousands of kilometers of ocean... In addition, there may be hidden submarine sounds, which are only limited by the processing of the human brain Ability, these voices were all mixed together, echoing repeatedly in his mind like a bell in the morning and a drum in the evening.

Occasionally, there will be a few strange noises in the magnificent hymn, which are as sharp as screaming, or as deep as weeping. No one knows what the noise is, maybe it is just the occurrence of two ocean currents with different temperatures and densities. A confluence, or a slight tectonic movement at the bottom of the sea—but these are all guesswork, and no one can say for sure.

The sounds of animals are the most insignificant among them, drowned out by other sounds, and often only discernible when they are very close. Most marine life does not sing, and among the animal sounds, the sounds from whales and dolphins dominate.

Zhang Zian moved the lever on the instrument to the low-frequency direction to enhance the sensitivity of the low-frequency, filter out the high-frequency ultrasonic waves from dolphins, toothed whales, and storms, and focus on listening to the low-frequency language communication.

With his movements, the voice in the earphones changed again, and the whole became quieter, from a grand hymn to a rhythmic long breath.

Boom boom boom boom...

A series of rapid drumbeats sounded continuously at a rate of two or three beats per second. It sounded like the popping sound produced by a poor-quality speaker. ...

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