Pet King

the next day.

"Master, do you want to go whale watching again today?"

Early in the morning, when Wang Qian saw Zhang Zi'an lifting a heavy battery towards Wuling Shenguang, he guessed his intention.

"Yes, that's right." Zhang Zi'an nodded, pulled the car door, connected the battery to the motor, and confirmed that the battery was fully charged.

"Uh……"

Wang Gan was wondering, although the whale watching is elegant, it is only necessary to watch it once in a while. Why go every day? Whale watching is so interesting? It's not about beauty ...

"What's this?" He picked up a long, rod-shaped gray object in the compartment and fiddled with it. He hadn't seen it in the car before, 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 a microphone in a KTV. There is a long gray wire on the back, and the surface of the wire is covered with plastic.

"This is for underwater recording." Zhang Zi'an was afraid he broke the precision instrument carelessly, took it from his hand and put it back in the compartment. "You look at the store, I'll go back if I don't return-remember to call the police ! "

Wang Qian looked constipated and saw Zhang Zi'an drive away.

Li Kun walked out from the next door and leaned in and said, "Brother, Master has been driving a lot recently. We have n’t touched the steering wheel for a long time. We have raised our hands ... By the way, what did Master do?"

"It is claimed to be recording underwater sounds, but I think Master's expression seems to be deceitful. He suspects that he is perfunctory me. What secrets he does not want to tell us ..." Wang Gan frowned, his expression serious.

"Oh? What's the secret?" Li Kun refreshed and asked nervously: "Is that the correct interpretation of the advanced animal control?"

"That's not ... I think Master's stuff in the carriage is thick and long, very advanced, it may be ... the legendary uranium rod!" Wang Gansha whispered in a subtle way.

"Uranium stick?" Li Kun was startled, "What does Master want to do with the uranium stick? Is it something to do?"

Seeing no one around, Wang Qian whispered, "Maybe Master secretly keeps a Godzilla in the sea ..."

"Godzilla? Are you sure you kept a rot?"

"Quack! What did you say just now?"

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

Zhang Zi'an drove very carefully today, especially after coming to the beach, slowing down and avoid breaking the valuable instruments in the car.

The underwater pickup that Professor Wei Kang borrowed from him is not a general commodity, but an advanced commodity used for serious scientific research in the College of Hydroacoustic Engineering of Binhai University.

Underwater pickups are not just as simple as recording underwater sounds. If that is the case, Universal Taobao can buy them, but a complete set of equipment including signal processing systems. It converts underwater acoustic signals into optical signals, conducts them into the system through optical fibers, performs modulation and enhancement, outputs sound wave charts, and converts sounds inaudible to the human ear to audible for analysis by researchers. . This system is very expensive, and ordinary people can't buy it.

Just like yesterday, Zhang Zi'an inflated the submarine, and by the way checked for leaks, the sea could not tolerate carelessness, and once he made a mistake, it became a hate forever.

It was okay to check, he carefully moved the equipment into the ship, and pushed the ship into the sea.

With heavy equipment ballast, the submarine's waterline is deeper than yesterday and the driving stability is also higher. He was fortunate not to buy too small a submarine, otherwise it would be too cramped now.

He judged the distance with the naked eye, stopped 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. Instead, he wet the surface evenly and confirmed that no air bubbles were attached. Surface to avoid distortion of the sound, and then slowly release the fiber optic cable.

The optical fiber line is marked with a scale. Zhang Zi'an did not know how deep the seawater was at his feet at this moment, and temporarily released 50 meters. It is estimated that it may be almost to the end-if it is too shallow, all the noise on the water surface is collected.

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

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

He turned on the switch, and a real-time waveform of the sound popped up on the small display.

After the sound of the sea floor was enhanced, the moment he passed into the ear from the earphones, he was suddenly creepy, tightening his body as if wrapped in the cold current, shivering shiveringly!

It's hard to describe exactly what he heard, like standing in front of an extremely thick and wide stone gate, watching the stone gate slowly open, and countless angel choirs pouring out of the stone gate, singing the grand hymn in unison .

His legs trembled, and if he had n’t sat on a erratic boat, he might have kneeled down on the spot.

Professional-grade underwater pickups and monitor-level headphones send all the sounds of the sea floor within a few kilometers into his eardrum. There are sounds from animals, sounds from ocean currents, sounds of propellers and motors, and distances. The sound of storms and thunders-sounds from high-energy storms can be received even thousands of kilometers across the ocean ... In addition, there may be submarine sounds that are hiding, but are limited by the processing of the human brain Ability, these voices are all mixed together, echoing in his mind like Chen Zhongmu drum.

There are occasionally strange noises in the grand hymns, sharp like screams, or deep like a cry, no one knows what the noise is. Maybe just two ocean currents with different temperatures and densities. Intersections, or slight crustal movements on the ocean floor-but these are all speculations, no one can tell what exactly it is.

Animal sounds are the most insignificant ~ www.wuxiaspot.com ~, which are obscured by other sounds, and often can only be distinguished when they are close. Most marine life does not sing. Among the sounds of animals, the sounds of whales and dolphins dominate.

Zhang Zi'an moved the lever on the instrument to low frequency to enhance the sensitivity of low frequency, filtered out the high frequency ultrasonic waves from dolphins, toothed whales, and storms, and focused on listening to language communication from low frequencies.

With his movement, the sound in the headphones changed again, and the whole became quiet, from a grand hymn to a long rhythmic breath.

Uh ...

A series of rapid drum sounds continued to sound at a rate of two or three times per second. It sounded like a crackling sound produced by inferior horns, and the sound was louder and smaller-this indicates that one or several minke whales wandered in the nearby waters. ...

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