Chapter 263: CD Prototype(1/2)
Chapter 263 CD Prototype
Author: Jing Jing
Chapter 263 CD Prototype
It was getting late when I returned to Chiyoda District from Chuo District.
Unexpectedly, the lights upstairs were already on, so I changed my shoes and took off my coat.
The nanny, who also had the same name as Jun Dai, picked up his briefcase and told him that the dinner was ready.
Shirakawa Kaede nodded and signaled that he already knew, but he had no interest in dining for the time being.
The appearance of the nanny reminded him of the girl he met in the tea room today and all the things that happened in the other yard.
After going upstairs, he pushed open the bedroom door. Tanaka Yuko was kneeling on the wooden floor and tidying up his clothes.
"Hey, Shirakawa-kun." She put down the clothes in her hand and stood up to greet him.
In fact, these jobs can be handed over to the nanny, but she never missed the hands of others.
"Yuko, help me pinch it." Shirakawa Kaede unbuttoned the watch in his hand and threw it onto the bed.
Yuko Tanaka was stunned, then nodded happily. "Shirakawa, please lie down."
She tidied up the wide and somewhat exaggerated double bed, then knelt on it again. She patted her legs and signaled that everything was in place.
Shirakawa Kaede smiled, then lay down on his back and put his head between her soft legs.
Just as my eyes were closed, my gentle hands were slowly kneading on both sides of his temples.
A soothing warmth slowly dissipated, and Shirakawa Kaede subconsciously breathed a sigh of relief.
"Yuko's legs are as comfortable as ever."
"Hey" Tanaka Yuko didn't know whether he was really praising his legs for comfort or on another level, so her face couldn't help but blush.
"I never get tired of playing."
"Hey, it's so rude."
Hearing her angry voice, Shirakawa Kaede couldn't help laughing.
"It's the truth" as he said this, Shirakawa Kaede's hands began to become dishonest, and he felt her softness carefully while he was chaotic.
After moving a little, Yuko Tanaka let him go without getting rid of his clutches.
She always feels that Shirakawa Kaede is a little abnormal today. Is it because she is too busy at work or is she under too much pressure recently?
But no matter which one it is, what Yuko Tanaka can do is give him a warm harbor.
As a neon woman, she also has some traditional concepts inside, and serving Shirakawa Kaede is what she wants to do the most.
Shirakawa Kaede did suffer a great cognitive impact today. The exposure of academic and chaebols finally made him recognize the tip of the iceberg of this society.
However, this opened corner also put a lot of pressure on him.
Where should Shirakawa Electric go in the future, how should I deal with them, and how will everything about Shirakawa continue to exist in the future?
Such all kinds are really annoying.
Shirakawa Kaede turned over and buried her head in her soft room.
"Yuko, let me study your legs carefully. It seems that your resilience has increased significantly recently. Have you gone to exercise quietly?"
The cheeky Shirakawa Kaede decided to leave the annoying questions first and enjoy the beauty in front of her.
"Shirakawa-kun~" Tanaka Yuko's cry was a little helpless.
This guy has become more and more domineering recently, and it has become more and more difficult for her to resist in bed.
Well, but now it seems that the effect of maintaining your figure is still very immediate, and I will continue to work hard in the future.
Datian District, Shirakawa Electrical Engineering Center.
Shirakawa Kaeda was taking Nakajima Hitaro and the others to surround a strange machine.
"Is the work stable? How effective is it?" He frowned and looked at the black box in front of him.
That's right, this is a real cube black box, stupid and rough.
It is also Shirakawa Electric's first CD prototype, and it finally revealed its true face today.
"It's pretty good to use at the moment. Although there are disc jumps, it can barely be accepted.
The 16-bit sampling rate brings unparalleled auditory enjoyment.
The 1411Kb bit rate restores the most essential effect of the sound to the maximum extent.
There is also the laser head that does not touch-free reading of disk information, which is really incredible."
Yasuda became more and more excited as he spoke. The working performance of the CD prototype was completely beyond his imagination.
He was surprised by the absolute muteness of the CD-ROM when working, because there was no friction between the laser and the disc, so the signal-to-noise ratio increased.
This makes the disc work without the rustling sound of the tape drive and the vinyl machine rotating, and the sound is clear and transparent.
This is definitely the first time for Yasuda and others who have been exposed to CD machines for the first time.
However, Shirakawa Kaede occasionally frowned when listening to the music coming from the CD.
The 1411Kb code rate has indeed increased the hearing sense by more than one level, and the MP3 code rate in later generations is only 320Kb.
So you can imagine that CDs are definitely a flash killer of MP3 in terms of sound quality.
Later, in the HIFI enthusiast circle, the 1411Kb bit rate also defines the true dividing line between lossy and lossless.
As for some platforms that advocate that as long as the 320Kb code rate exceeds the MP3, it is a declaration that lossless sound quality is completely a manifestation of bad money driving good money.
After the current CD machine laser head reads the information, it directly passes it to the DAC decoding chip.
Because there is no middleman to make a difference, the sound quality is restored thoroughly.
This is the first time Yasuda and the others have seen this kind of CD machine, but Shirakawa Kaede is not.
Just a moment later, he felt that the CD-machine in front of him had a slight disc jump.
If you don’t care, you may not feel it, but as a trendy product for the next generation, you must fire the first shot.
In terms of sound and experience, there must be no flaws that can be heard by anyone.
"The vibration caused by the rotation of the optical disc will occasionally affect the bald head to read information. Find ways to improve it as much as possible.
In addition," Shirakawa Kaede patted the prototype in front of him, but suddenly a "click" sounded, and his prototype went on strike.
This made Shirakawa Kaede stuck in his throat before he could say anything. After two seconds, the CD machine slowly resumed work.
Yasuda looked at this scene in embarrassment, and the other researchers in the studio were also blushing.
Shirakawa Kaede shook his head, "There is still a lot of room for improvement, keep working hard.
Nakajima San, tell me how Sony is going and how they solved such a problem?”
If you want to talk about the real CD expert, of course, it is Hitaro Nakajima in front of you.
He is one of the real participants and developers of CD technology. Shirakawa Electric's team may not be worth him.
When Nakajima Heitaro heard Shirakawa Kaede's greeting, he stepped forward without hesitation.
Now that he has left Sony and has no identity restrictions, he dares to speak freely.
Thinking about sitting with Shirakawa Kaede a few months ago, the latter laughed and asked him to give advice on Shirakawa Electric's CD development.
At that time, he was still worried about his identity, but he didn't expect to join the other side's camp in a blink of an eye.
A joke-like agreement made the first come true.
Fate is amazing.
Retracting his thoughts, Hirataro Nakajima touched the prototype in front of him and instantly found the problem.
"Too light" he knocked on the shell of the prototype, making a crisp sound.
"Hmm?" Yasuda felt enlightened, as if he understood what the other party said.
"If you want to solve the problem of earthquake resistance, the fastest and most effective way is to increase the weight of the fuselage."
Nakajima Hirataro opened the door of the CD machine and knocked on the shell again.
The CD inside the CD that could be seen by everyone was shaking slightly, and this time everyone understood the reason.
Because the plastic case has a lighter mass, occasional collisions will cause the disc to vibrate.
When the CD machine is working, the internal optical disc rotates at high speed. Any vibration will be amplified by the laser head and cause information reading to fail.
"The solution at Sony is not only to optimize the mechanism design, but also to switch to an all-metal body.
As the weight increases, due to the existence of inertia, the vibration of the CD machine will be greatly weakened, thereby reducing the occurrence of disc jumping."
There are also some restrictions on competition between Hitaro Nakajima and Sony, but it has been settled by Shirakawa Kaede.
He was only involved in the development of CD technology, and he was not responsible for the development of CD machines. At that time, he had already become President Aihua.
Because of this, coupled with Shirakawa Kaede's appearance, Sony did not insist on this.
To be continued...