Magus Tech Chapter 288: Voice changing.

Four days later.

Laboratory, main laboratory.

Li Cha stood in front of the long experimental table, preparing to go to the underground market again under the candlelight.

Looking at his hand, Li Cha examined the ring he was wearing.

There are two rings on each of the left and right hands.

Among them, on the left hand, worn on the index finger, is the space iron ring. As far as it is concerned, it has three functions—absolute defense of space transfer, absolute cutting of space scissors, and absolute processing of space precision

The one worn on the **** is a quaint ring from old Mullen, and the effect it can play is currently only close to that of certain books. Although the role is small, it is the key to deciphering the secrets of the White Stone Tower and the Black Spirit King.

On the right hand, worn on the index finger is the No. 1 ring, which depicts the magic pattern of four solidified spells - the brute force of the wind, the lightness of the wind, Pierce's nerve sensitivity and accelerated recovery. very strong.

With a thought in Li Cha's mind, free energy elements gushed out from the magic source in his body, injected into the No. 1 ring to activate, and the four spells were simultaneously released and blessed on the body.

Li Cha felt that his body was slightly heavier first, and the battle armor formed by the air condensed covered the surface of his body, and then his feet were lightened, and the air-condensed wind shoes appeared on his feet, and then the hairs stood up, the perception was enlarged, and the cells were metabolized Strengthen and speed up recovery.

"Hoo—"

Li Chazhang let out a breath, canceled the effects of the four spells, and looked at the number two ring worn on the **** of his right hand.

Not long after the second ring was newly made, there were three solidified magic patterns on it - paralyzing lightning, frost freezing, and corrosive toxin, which are not weak.

Li Cha tried to activate the second ring, and saw three inconspicuous lights flashing across it quickly. If these three rays of light fall on the enemy, it will definitely make the enemy feel better!

The function of the second ring is completely different from that of the first ring, and it can even be said to be opposite. The first ring is mainly used to increase one's own ability, while the second ring is used to weaken the enemy's state. One increase and one decrease can establish a huge advantage in battle.

Now Richard has a rough plan for the production of the rest of the rings, and decided to share four to six magic pattern rings to strengthen different abilities, assist him in the battle at the wizard apprentice level, and ensure that he has a positive Ability to stand against real wizards.

After inspecting the ring, Li Cha flipped his hand and took out a variety of potions from the space iron ring, such as "Trial Sensitivity Potion", "Spartan Hero Potion", "Spartan Warrior Potion" and so on.

Compared to rings, these medicines cannot have permanent effects, but they can significantly enhance the ability of a certain aspect of the body within a certain period of time, thus breaking the deadlock in the battle.

In Li Cha's view, these medicines are generally not used, especially when going to the underground market this time. However, there is absolutely nothing wrong with being prepared.

Putting away the potion, Li Cha turned over his hand, and another blood-red eyeball-sized bead appeared in his hand. This is the Destruction Orb obtained from Old Mullen. According to Old Mullen's description, it is powerful enough to instantly kill a real wizard, and it can be regarded as his current trump card. Of course, just like medicine, he didn't think he would use it when he went to the big market this time, at most he was just prepared.

Actually, in his opinion, if there is no accident when going to the big market this time, he only needs to show a part of his strength, and he will be able to enter the Forbidden Bookstore smoothly without revealing his identity.

Of course, before that, you need to...disguise.

Li Cha put away the Destruction Bead and began to disguise himself as a person with a new appearance and a new identity.

Li Cha chanted a mantra to let the little trick of "condensation of water droplets" work. Part of the special gas in the air was separated and slowly gathered together. After half a sound, it turned into a transparent bubble, slowly Slowly stick to the surface of the body.

It looked no different from the normal ones, but with a thought, Li Cha let the transparent bubble slowly open a gap, and part of the gas in it entered the mouth. Li Cha tried to make a sound, but his voice was already very different from the original one, it seemed sharp.

This is the case because the inhaled gas is helium.

Generally speaking, the human body can produce sound because the air in the lungs passes through the vocal cords, causing the vocal cords to vibrate and produce sound waves. Sound waves are altered through the vocal tract, coming out of the lips to become voice.

The speed of sound propagation in different media is different. Under normal circumstances, the vocal tract in the mouth and nose of the human body is filled with air with a weight of 1.293kg/m3, and the propagation speed of sound in it is 340m/s.

After the inert gas helium is inhaled in the vocal tract, because helium is 0.1786kg/m3, which is much lighter than air, the speed of sound propagation will increase nearly three times, and the sound will sound less sharp.

However, if some other gases heavier than air are used to fill the sound channel to slow down the sound propagation, it will sound muffled~IndoMTL.com~ Using this method to change the sound and disguise the identity, one of the great advantages is that it is convenient . Because the nature of the gas and the speed of sound propagation are fixed, as long as the gas is inhaled reasonably, it can be guaranteed that a person does not need to make any changes to change the sound into another. It is much easier than deliberately going out of tune and pretending to be another voice, and it will not cause damage to the fragile vocal cords.

Of course, it should be noted that this method cannot be used continuously. In other words, it is impossible to continuously inhale inert gas to make a sound. Because the inert gas does not contain oxygen, trying to inhale the inert gas to make a sound will cause suffocation.

The solution is also simple, that is, take a breath of inert gas to say a word, then pause for a while, inhale normal air to supplement the oxygen consumption of the body's metabolism, and then continue to inhale inert gas to make a sound.

When using this method, the pause can be disguised as silence or thinking, and it will hardly be suspected.

Thinking in this way, Li Cha used the "condensed water droplets" to constantly adjust the type of gas, and the voices of the testers were different. In the end, he chose a more satisfactory gas, which made his voice hoarse, making him sound as if he was not young.

After disguising his voice, Li Cha started disguising his face, using various cosmetics to modify the details of his face, making his eyebrows thicker, his eyes bigger, and his complexion darker...

After putting on makeup, Li Cha glanced at the mirror and nodded in satisfaction, and then began to wear new decorations: a thick black robe covering most of his face, half-fingered black leather gloves, high-heeled boots...

In the end, Li Cha looked in the mirror, and saw that he had completely changed, and could not find any of the original characteristics.

"Very good." Li Cha said hoarsely, nodded his head lightly, walked out of the laboratory, and walked towards the large underground market.