"Hehe, what are you talking about piano grade 10 ......" The corners of Wei Gong's mouth twitched, looking at the straw paper and hanging needles spread on the ground, and after a long time, this soul fade is not to be calibrated by frequency.

According to the principle of vibration, the number of hertz corresponding to each piano key is a very precise number, and in general, it is tuned by someone with an absolute sense of tone, but there are also such as this, which are proofread by an frequency meter.

"Piano grade 10 is not a god." Cui Xiaoxiao clasped her hands and looked at him coldly, "If you want to get more accurate data, you need more accurate instruments, but through simple estimation, the error is within 0.1 Hz, and the human ear can't distinguish it, so it doesn't matter." ”

Emiya gave her a disdainful look and waved his hand, "Don't bother, you just need to tell me what the number of hertz corresponds to each key." ”

Cui Xiaoxiao raised her head in surprise, could it be that this sound idiot actually has a pair of ears with absolute tone?

However, with a skeptical expression, Cui Xiaoxiao still wrote down the vibration frequency corresponding to each piano key one by one.

If he wanted to be precise, there really wasn't anything more accurate than the system in Emiya's brain to make measurements, which is why he didn't need a higher frequency meter.

The piano has a total of 88 keys, and the range ranges from A2 (27.5Hz) to c5 (4186Hz), which includes almost all the musical sounds in the music system, and the hearing range of the human ear is between 20 and 20,000Hz, so, to some extent, the piano is indeed the king of musical instruments.

However, according to Wei Gong's measurements, he found that the hearing range of the ears of people in the world of fairy swords is as high as 50,000hz, that is to say, it is similar to the hearing of dogs.

Therefore, Emiya is also considering whether to improve the piano sword and extend the frequency to about 10000Hz.

However, in this way, the vibrator of the piano sword will increase from the original eighty-eight to nearly one hundred and sixteen.

Emiya shook his head, the price was too great.

Because even the current eighty-eight sound-generating vibrators already need a sword body of about one meter and six or five meters long to achieve the superposition effect of amplified sound effects and dual sounds.

If it is increased to one hundred and sixteen, the length of this sword will be more than three meters, and the width will probably be more than one meter.

Emiya couldn't imagine what that sword would look like.

He bowed his head and remained silent, staring at the draft on the table, locked in a new stalemate.

Even if it is a sword body of about one meter and six five, it has greatly exceeded the length of the sword on the market now, which will greatly reduce the beauty of the sword, which is actually not suitable for a beauty like Ken Rin Sakura.

Cui Xiaoxiao also realized this, she stretched out her hand and gestured, it was hard to imagine what it was.

"This can't work, it's not a coffin board, do you want a big beauty to carry such a broken thing on her back?"

"Shut up...... Don't I know," Wei Gong calmed the anger in his heart, "Am I not trying to figure out a way?" ”

After a long time, Cui Xiaoxiao suddenly said, "Is it possible to ......?"

"What?"

"Add wings to the sword......"

Wei Gong's brows twitched, thanks to you for coming up with such an unreliable thing.

Cui Xiaoxiao jumped down from the windowsill, then picked up the pencil on the side and drew the appearance of a sword next to the design draft of the palace.

"You see, if you have a pair of wings, the extension of the vocal range can be guaranteed, and if you make it look like wings, you can also add amplification equipment on the outside, and in addition," Cui Xiaoxiao smiled slyly, "being an angel is every girl's dream, this piano sword with wings will definitely be very popular." ”

Hold the grass, hold the grass......

Emiya was so surprised that he couldn't say a word.

He hurriedly attached himself and swept through the drawings one by one, "Indeed, make it look like wings, and all problems will be solved." ”

Moreover, the Wei Palace made a slight improvement, and drew Cui Xiaoxiao's casual graffiti just now into a fine casting structure drawing.

When the painting was finished, Cui Xiaoxiao only felt that the air was suffocating.

"Oh my God, it's beautiful!"

It was at this moment that Cui Xiaoxiao felt that only an angel could pick up this sword, and only an angel was worthy of using it.

I hope Emiya doesn't make it too detached from the design......

……

Now that the design has been finalized and the various parts have been tested, the rest is simple, Emiya only needs to assemble and combine these parts, and then press and build them with a special material of the consonant sword board, which is completed.

In a way, this sword will be the first combination sword that Emiya has created, and perhaps the first combination sword in this world.

After suppressing the shell sword body, the system's prompt sound sounded in the brain:

"A new sword spectrum has been obtained, not yet named, codenamed X358

Department: All departments

Grade: Jade Dragon Emperor Product

Base Attack Damage: 88

Additional Attack Damage: 62

Defense: 54

Flight speed: 98

Flight Cost: 2.2

Additional Abilities: None

Ranged Ability: None

”

Sure enough, the biggest disadvantage of the combined sword is that it is not as complete and natural as it is generally obtained through tempering, and it will be greatly discounted in attributes, which is already inevitable.

However, originally this sword was mainly born for performance, and it shouldn't matter if the actual combat function is weaker.

For this sword, Wei Gong spent a total of more than 150 different materials, and the price was about 500,000.

It's a pity, it's a Jade Dragon Emperor in the end.

"Name, Wing Piano Sword!"

"Yes, master, the X358 has been named the Wing Qin Sword."

Emiya lifted the sword into the air and smiled with satisfaction.

The wings, shining silver in the sun, looked like lifelike feathers.

Cui Xiaoxiao couldn't help but look stupid.

Emiya thought to himself, this might be the most beautiful sword I've ever made.

……

While the two of them were rejoicing, there was a sudden vibration under their feet.

Wei Gong's feet shook, and he instinctively reached out and hugged Cui Xiaoxiao into his arms.

It took a while for the tremors to subside.

"Is it an earthquake?"

Wei Gong muttered to himself, then looked down at Cui Xiaoxiao.

"Xiaoxiao, are you alright?"

"Huh?"

Cui Xiaoxiao hurriedly pushed his body away, took a step back, and before he knew it, his cheeks were red.

"It's fine." She shook her head, confused.

However, a flash of lightning flashed in his brain.

"Brother Weigong, it doesn't seem to be an earthquake just now, it seems to have come from your underground laboratory."

"What?!"

……